Scott M Montgomery

Örebro universitet, Örebro, Örebro, Sweden

Are you Scott M Montgomery?

Claim your profile

Publications (232)1495.53 Total impact

  • [Show abstract] [Hide abstract]
    ABSTRACT: Consanguineous marriage is associated with increased risks for congenital anomalies, low birth weight, and other adverse perinatal outcomes. In this population-based, case-control study we investigated the association between consanguineous marriage (first cousins marriage) and stillbirth risk, using prospectively collected information from pre-pregnancy visits. From 2007 to 2009, We identified 283 stillbirths (cases) and 2088 randomly selected live control births through pre-pregnancy visits in rural Golestan, Iran.The associations between consanguinity and pre-pregnancy maternal characteristics and stillbirth risk were examined using multivariate logistic regression. The rate of consanguineous marriage was 19.4% among cases and 13.6% among controls. Consanguinity was associated with increased stillbirth risk (Odds ratio [OR]: 1.53; 95% confidence intervals [CI]: 1.10-2.14).The association was significantly increased for preterm (<37 gestational weeks) stillbirth (OR: 2.43; 95% CI: 1.46-4.04) but not for term (≥37 weeks) stillbirth (OR 1.14; 95% CI: 0.75-1.74). Low and high maternal age, underweight, obesity, nulliparity, a history of infertility or miscarriage, previous obstetric complications (preeclampsia, preterm delivery, and stillbirth in previous pregnancies) were also associated with increased stillbirth risks. Consanguineous marriage is associated with increased risk of stillbirth, particularly preterm stillbirth. Findings for other maternal risk factors for stillbirth in rural Iran are consistent with previously reported findings from high income countries. This article is protected by copyright. All rights reserved. This article is protected by copyright. All rights reserved.
    Acta Obstetricia Et Gynecologica Scandinavica 06/2015; DOI:10.1111/aogs.12699 · 1.99 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: Adult obesity and inflammation have been associated with risk of colorectal cancer (CRC); however, less is known about how adolescent body mass index (BMI) and inflammation, as measured by erythrocyte sedimentation rate (ESR), relate to CRC risk. We sought to evaluate these associations in a cohort of 239 658 Swedish men who underwent compulsory military enlistment examinations in late adolescence (ages 16-20 years). At the time of the conscription assessment (1969-1976), height and weight were measured and ESR was assayed. By linkage to the national cancer registry, these conscripts were followed for CRC through 1 January 2010. Over an average of 35 years of follow-up, 885 cases of CRC occurred, including 501 colon cancers and 384 rectal cancers. Cox regression was used to estimate adjusted HRs and corresponding 95% CIs. Compared with normal weight (BMI 18.5 to <25 kg/m(2)) in late adolescence, upper overweight (BMI 27.5 to <30 kg/m(2)) was associated with a 2.08-fold higher risk of CRC (95% CI 1.40 to 3.07) and obesity (BMI 30+ kg/m(2)) was associated with a 2.38-fold higher risk of CRC (95% CI 1.51 to 3.76) (p-trend: <0.001). Male adolescents with ESR (15+ mm/h) had a 63% higher risk of CRC (HR 1.63; 95% CI 1.08 to 2.45) than those with low ESR (<10 mm/h) (p-trend: 0.006). Associations did not significantly differ by anatomic site. Late-adolescent BMI and inflammation, as measured by ESR, may be independently associated with future CRC risk. Further research is needed to better understand how early-life exposures relate to CRC. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to
    Gut 05/2015; DOI:10.1136/gutjnl-2014-309007 · 13.32 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: Associations with multiple sclerosis (MS) of living conditions in childhood and characteristics in adolescence including physical fitness, cognitive function and psychological stress resilience were investigated. A cohort of male Swedish residents born 1952-1956 who were included in the Swedish Military Conscription Register was used to create a nested case-control study comprising 628 MS cases and 6187 controls matched on birth year, county of residence and vital status at time of diagnosis. Conscription examination records were linked with other national register data. Conditional logistic regression was used to evaluate associations with MS subsequent to the conscription examination. Men with MS were less likely to be from more crowded households in childhood (>two persons per room) with an adjusted odds ratio of 0.67 (95% confidence interval 0.51-0.86, P = 0.023). They had lower physical working capacity in adolescence with adjusted odds ratio of 0.94 (95% confidence interval 0.89-0.99, P = 0.026). Cognitive function and stress resilience scores displayed no significant differences between cases and controls. Parental occupation in childhood and body mass index in adolescence were not associated with future MS risk. The inverse association of MS risk with higher levels of household crowding may reflect environmental factors such as the pattern of exposure to microorganisms. Lower physical fitness in men at MS risk may indicate a protective effect of exercise or could be due to prodromal disease activity, although there was no association with cognitive function. Poor psychological stress resilience (and thus risk of chronic stress arousal) was not associated with MS. © 2015 The Authors. European Journal of Neurology published by John Wiley & Sons Ltd on behalf of European Academy of Neurology.
    European Journal of Neurology 04/2015; 22(7). DOI:10.1111/ene.12718 · 3.85 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: A reduced cancer risk amongst patients with multiple sclerosis (MS) has been reported. Theoretically, this could represent a genuine reduction in risk or, alternatively, 'diagnostic neglect', where cancer is undiagnosed when symptoms are misattributed to MS. Assess all-cause mortality risk following a cancer diagnosis in patients with MS compared with a cohort without MS. A cohort of MS patients (n = 19 364) and a cohort of the general population (n = 192 519) were extracted from national Swedish registers from 1969 to 2005. All-cause mortality after cancer in MS was compared with the general population. Poisson regression analysis was conducted in the MS and non-MS cohorts separately. The models were adjusted for follow-up duration, year at entry, sex, region and socioeconomic index. The two cohorts were combined and differences in mortality risk were assessed using interaction testing. The adjusted relative risk (and 95% confidence interval) for all-cause mortality following a cancer diagnosis in MS patients (compared with MS patients without cancer) is 3.06 (2.86-3.27; n = 1768) and amongst those without MS 5.73 (5.62-5.85; n = 24 965). This lower magnitude mortality risk in the MS patients was confirmed by multiplicative interaction testing (P < 0.001). A consistent pattern of lower magnitude of all-cause mortality risk following cancer in MS patients for a range of organ-specific cancer types was found. It suggests that cancer diagnoses tend not to be delayed in MS and diagnostic neglect is unlikely to account for the reduced cancer risk associated with MS. The lower magnitude cancer risk in MS may be due to disease-associated characteristics or exposures. © 2015 EAN.
    European Journal of Neurology 04/2015; 22(7). DOI:10.1111/ene.12710 · 3.85 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: Some studies have suggested that childhood-onset inflammatory bowel disease (IBD) is characterized by extensive intestinal involvement and rapid progression to complications. Here, we report the presentation and progression of patients diagnosed with IBD during childhood in a population-based cohort from northern Stockholm County. Medical records for all 280 patients diagnosed in the period 1990-2007 with childhood-onset IBD in northern Stockholm County were followed until 2011 (median follow-up time, 8.8 yr). Disease phenotypes were classified according to the Paris pediatric IBD classification. Among the 74 patients with ulcerative colitis, 72% presented with pancolitis. Among the 200 patients with Crohn's disease (CD), 75% presented with colitis. Complicated disease behavior was observed in 18% of patients with CD by end of follow-up. Extension of the disease territory was observed in 22% of patients with ulcerative colitis and 15% of patients with CD. The cumulative risk of intra-abdominal surgery after 10 years was 8% (95% confidence interval, 4%-20%) for ulcerative colitis and 22% (95% confidence interval, 15%-28%) for patients with CD. Nonmucosal healing at 1 year was associated with a complicated disease course in patients with CD (hazard ratio = 14.56; 95% confidence interval, 1.79-118.68; P = 0.01). Patients with childhood-onset IBD were characterized by extensive colitis that was relatively stable over time and associated with a relatively low risk of complications and abdominal surgery. Our findings confirm the more extensive disease location in pediatric IBD but did not identify the proposed dynamic and aggressive nature of the childhood-onset phenotype. The association of nonmucosal healing with a complicated disease course suggests that endoscopy should guide treatment intensity in childhood-onset CD.
    Inflammatory Bowel Diseases 04/2015; 21(5). DOI:10.1097/MIB.0000000000000356 · 5.48 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: It is unclear whether psychological resilience to stress in adolescence represents a persistent characteristic relevant to the subsequent risk for depression and anxiety in later adulthood. We aimed to test whether low psychological stress resilience assessed in adolescence is associated with an increased risk of receiving medication for depression and anxiety in middle age. We utilized Swedish register-based cohort study. Men born between 1952 and 1956 (n = 175,699), who underwent compulsory assessment for military conscription in late adolescence were followed to examine subsequent risk of pharmaceutically-treated depression and anxiety in middle age, from 2006 to 2009 corresponding to ages between 50 and 58 years, using Cox regression. The associations of stress resilience with prescription of antidepressant and anxiolytics medication through potential mediating factors cognitive and physical function and adult socioeconomic factors were calculated. Low stress resilience was associated with elevated risks for antidepressant (hazard ratio (HR):1.5 (95% CI 1.4 1.6)) and anxiolytics (HR:2.4 (CI 2.0 2.7)) medication. Adjustment for measures of childhood living circumstances attenuated the associations somewhat. Around a third of association with low stress resilience, and a half of that with moderate resilience, was mediated through cognitive and physical function in adolescence and adult socioeconomic factors. The magnitude of the inverse association of higher cognitive function with antidepressant medication was eliminated among those with low stress resilience. These results indicate that low stress resilience in adolescence is associated with an increased risk for antidepressant and anxiolytics medication over 30 years later, in part mediated through developmental factors in adolescence and socioeconomic circumstances in adulthood, and low stress resilience can diminish or eliminate the inverse association of higher cognitive function with antidepressant medication. Copyright © 2015 Elsevier Ltd. All rights reserved.
    Social Science [?] Medicine 04/2015; 134:43-49. DOI:10.1016/j.socscimed.2015.03.057 · 2.56 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Psychosocial stress is a suggested risk for coronary heart disease (CHD). The relationship of stress resilience in adolescence with subsequent CHD risk is underinvestigated, so our objective was to assess this and investigate the possible mediating role of physical fitness. In this register-based study, 237 980 men born between 1952 and 1956 were followed from 1987 to 2010 using information from Swedish registers. Stress resilience was measured at a compulsory military conscription examination using a semistructured interview with a psychologist. Some 10 581 diagnoses of CHD were identified. Cox regression estimated the association of stress resilience with CHD, with adjustment for established cardiovascular risk factors. Low-stress resilience was associated with increased CHD risk. The association remained after adjustment for physical fitness and other potential confounding and mediating factors, with adjusted HRs (and 95% CIs) of 1.17 (1.10 to 1.25), with some evidence of mediation by physical fitness. CHD incidence rates per 1000 person-years (and 95% CIs) for low-stress, medium-stress and high-stress resilience were 2.61 (2.52 to 2.70), 1.97 (1.92 to 2.03) and 1.59 (1.53 to 1.67) respectively. Higher physical fitness was inversely associated with CHD risk; however, this was attenuated by low-stress resilience, shown by interaction testing (p<0.001). Low-stress resilience in adolescence was associated with increased risk of CHD in middle age and may diminish the benefit of physical fitness. This represents new evidence of the role of stress resilience in determining risk of CHD and its interrelationship with physical fitness. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to
    Heart (British Cardiac Society) 03/2015; 101(8). DOI:10.1136/heartjnl-2014-306703 · 6.02 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: Background Psychosocial stress may influence peptic ulcer disease (PUD) risk, but it can be difficult to identify reliably whether stressful exposures pre-dated disease. The association of stress resilience (susceptibility to stress) with subsequent PUD risk has been incompletely investigated.AimTo assess if stress resilience in adolescence is associated with subsequent PUD risk.Methods The participants comprised of 233 093 men resident in Sweden, born 1952–1956 and assessed for compulsory military conscription during 1969–1976, with data provided by national Swedish registers. Stress resilience was evaluated through semi-structured interviews by a certified psychologist. Cox regression assessed the association between stress resilience in adolescence and the risk of PUD from 1985 to 2009, between ages 28 and 57 years, with adjustment for parental socioeconomic index, household crowding and number of siblings in childhood, as well as cognitive function and erythrocyte sedimentation rate in adolescence.ResultsIn total, 2259 first PUD diagnoses were identified. Lower stress resilience in adolescence is associated with a higher risk of PUD in subsequent adulthood: compared with high resilience, the adjusted hazard ratios (and 95% CI) are 1.84 (1.61–2.10) and 1.23 (1.09–1.38) for low and moderate stress resilience, respectively.Conclusion Stress may be implicated in the aetiology of PUD and low stress resilience is a marker of risk.
    Alimentary Pharmacology & Therapeutics 03/2015; 41(10). DOI:10.1111/apt.13168 · 4.55 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: Abstract Objective: Prenatal exposure to elemental mercury may be a potential hazard for the offspring of female dental personnel working with dental amalgam. The aim of this study was to investigate whether potential in utero exposure to mercury might have affected the development of nervous system of the sons of Swedish female dental personnel leading to an increased risk of neurological disease or intellectual disability. Material and methods: We used national Swedish registers to investigate risks for diseases potentially related to adverse effects on neurodevelopment. Sons of female dentists (n=1690) and dental nurses (n=10,420) were compared with cohorts consisting of sons of other female healthcare personnel. Due to changes in mercury exposure in dentistry during the study period, analyses were stratified by decade of birth. Hazard ratios (HRs) were calculated using Cox proportional hazard models. Results: We found no elevated risk for neurological disease, epilepsy or intellectual disability among the sons of dental personnel during any of the decades studied. HRs for neurological disease among the dental nurse cohort were even below 1.00 during the 1970s and 1980s. A low number of events resulted in uncertainty regarding results in the dentist cohort. Conclusions: We did not find any support for the hypothesis that mercury exposure in Swedish dentistry during the 1960s, 1970s or 1980s had any effect on the incidence of neurological disease or intellectual disability among the sons of female dental personnel. Our results imply that current use of dental amalgam should not represent an elevated risk for neurological disease or intellectual disability among the offspring of dental personnel.
    Journal of Perinatal Medicine 02/2015; DOI:10.1515/jpm-2014-0294 · 1.43 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: Identification of predictors of end-stage renal disease (ESRD) in adolescence could provide intervention targets and improve understanding of the cause.
    American Journal of Kidney Diseases 08/2014; 64(5). DOI:10.1053/j.ajkd.2014.06.019 · 5.76 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: Background and aim The incidence of Crohn's disease (CD) is continuing to rise in several countries and in others it appears to have already levelled off after a period of increase. We updated our previous population-based study, by re-extraction of all information on patients diagnosed with CD between 1963 and 2010. Our aim was to assess temporal trends in incidence, prevalence and disease phenotype at diagnosis. Methods Patients of all ages with a potential diagnosis of CD were identified retrospectively by evaluation of medical notes of all current and previous patients at the colitis clinic, Örebro University Hospital amended by computerised search in the inpatient, outpatient, primary care and histopathological records. Diagnosis was confirmed by subsequent evaluation of medical notes. Disease phenotype was defined according to the Montreal classification. Results The incidence increased over time, especially among Crohn's disease, A1 and A3. SaTScan model revealed a statistically significant high incidence during 1991–2010 (p = 0.0001). The median age at diagnosis increased from 28 (3–79) years to 37 (5–87) years (p = 0.0002). The point prevalence increased from 21/105 (14–32) in 1965 to 267/105 (244–291) in 2010. Non-stricturing and non-penetrating disease at diagnosis increased from 12.5% in 1963–1965 to 82.3% in 2006–2010 (p < 0.0001). Conclusion The incidence of CD increased over time, although it seemed to be plateauing during the most recent decades. A striking increase in non-stricturing, non-penetrating disease at diagnosis was observed, suggesting earlier diagnosis or phenotypic change. The observed point prevalence in 2010 is among the highest reported.
    Journal of Crohn s and Colitis 08/2014; 8(12). DOI:10.1016/j.crohns.2014.07.006 · 3.56 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Background and purposeCardiovascular disease (CVD) risk amongst multiple sclerosis (MS) patients appears raised, but few studies have examined CVD risk amongst an unselected MS patient group. MS course may be relevant for CVD risk. Our aim was to assess CVD risk and variation by course in MS patients.Methods The Multiple Sclerosis Register identified 7667 patients who received an MS diagnosis between 1964 and 2005. They were matched by age, period, region and sex with 76 045 members of the general population without MS using Swedish registers. Poisson regression compared the two cohorts to estimate the relative risk for CVD, overall, as well as grouped and individual CVD diagnoses.ResultsMS patients had an increased adjusted relative risk (with 95% confidence intervals; number of MS cohort events) for CVD of 1.31 (1.22–1.41; n = 847), with some variation by course: relapsing−remitting 1.38 (1.17–1.62; n = 168); secondary progressive 1.30 (1.18–1.53; n = 405) and primary progressive 1.15 (0.93–1.41; n = 108). The association for the relapsing−remitting course was not significant after excluding the first year of follow-up. Overall incidence rates per 1000 person-years for CVD are 11.8 (11.06–12.66) for the MS cohort and 8.8 (8.60–9.05) for the non-MS cohort. The most pronounced association was for deep vein thrombosis: relapsing−remitting 2.16 (1.21–3.87; n = 14), secondary progressive 3.41 (2.45–4.75; n = 52) and primary progressive 3.57 (1.95–6.56; n = 15). MS was associated with ischaemic stroke but largely during the first year of follow-up. MS was associated with a decreased relative risk for angina pectoris and atrial fibrillation.Conclusions There is a significantly increased relative risk for CVD in MS, particularly for venous thromboembolic disorders in progressive MS, suggesting immobility as a possible factor. An increased frequency of ischaemic stroke in MS is most probably due to surveillance bias resulting from diagnostic investigations for MS. There is no increased relative risk for ischaemic heart disease in MS and atrial fibrillation appears to be less common than amongst the general population.
    European Journal of Neurology 07/2014; 21(11). DOI:10.1111/ene.12518 · 3.85 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Objectives To investigate the risk of future diabetes mellitus type 1 (T1D) in children who suffered from infection at time of gluten introduction. Study design Population-based prospective study. Parents filled out a diary at home. We hereby obtained data on date of gluten introduction, breastfeeding duration, and infections in 9414 children born in the southeast of Sweden from October 1, 1997, through October 1, 1999 (the All Babies in Southeast Sweden cohort). The Cox proportional hazards model was used to investigate the risk of future T1D until February 1, 2012, among children with infection at time of gluten introduction. Results Forty-six children (0.5%) developed T1D and were compared with 9368 reference children from the general population. Some 10 of 46 children with later T1D had an infection at time of gluten introduction (22%) compared with 2520 reference children (27%, P = .43). Later T1D was not associated with age at end of breastfeeding, age at any infection, or age at gluten introduction. Breastfeeding at time of gluten introduction was not protective against future T1D (hazard ratio 1.2; 95% CI, 0.5-2.7). In our final model, when we adjusted for age at gluten introduction, age at infection, and breastfeeding duration, infection at time of gluten introduction did not influence the risk of future T1D (hazard ratio 0.8; 95% CI, 0.3-1.6). Conclusion Infection at time of gluten introduction is not a major risk factor for future T1D in nonselected children.
    Journal of Pediatrics 05/2014; 165(2). DOI:10.1016/j.jpeds.2014.04.003 · 3.74 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Exposure to psychosocial stress has been identified as a possible stroke risk, but the role of stress resilience which may be relevant to chronic exposure is uncertain. We investigated the association of stress resilience in adolescence with subsequent stroke risk. Register-based cohort study. Some 237 879 males born between 1952 and 1956 were followed from 1987 to 2010 using information from Swedish registers. Cox regression estimated the association of stress resilience with stroke, after adjustment for established stroke risk factors. Some 3411 diagnoses of first stroke were identified. Lowest stress resilience (21.8%) compared with the highest (23.7%) was associated with increased stroke risk, producing unadjusted HR (with 95% CIs) of 1.54 (1.40 to 1.70). The association attenuated slightly to 1.48 (1.34 to 1.63) after adjustment for markers of socioeconomic circumstances in childhood; and after further adjustment for markers of development and disease in adolescence (blood pressure, cognitive function and pre-existing cardiovascular disease) to 1.30 (1.18 to 1.45). The greatest reduction followed further adjustment for markers of physical fitness (BMI and physical working capacity) in adolescence to 1.16 (1.04 to 1.29). The results were consistent when stroke was subdivided into fatal, ischaemic and haemorrhagic, with higher magnitude associations for fatal rather than non-fatal, and for haemorrhagic rather than ischaemic stroke. Stress susceptibility and, therefore, psychosocial stress may be implicated in the aetiology of stroke. This association may be explained, in part, by poorer physical fitness. Effective prevention might focus on behaviour/lifestyle and psychosocial stress.
    Journal of neurology, neurosurgery, and psychiatry 03/2014; 85(12). DOI:10.1136/jnnp-2013-307485 · 5.58 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Our aim was to study the risk of renal disease in patients with type 1 diabetes (T1D) and coexisting coeliac disease (CD). Individuals with T1D were defined as having a diagnosis of diabetes recorded at ≤30 years of age in the Swedish Patient Register between 1964 and 2009. Individuals with CD were identified through biopsy reports with villous atrophy (Marsh stage 3) from 28 pathology departments in Sweden between 1969 and 2008. We identified 954 patients with both T1D and CD. For each patient with T1D + CD, we selected five age- and sex-matched reference individuals with T1D only (n = 4,579). Cox regression was used to estimate the following risks: (1) chronic renal disease and (2) end-stage renal disease in patients with CD + T1D compared with T1D patients only. Forty-one (4.3%) patients with CD + T1D and 143 (3.1%) patients with T1D only developed chronic renal disease. This corresponded to an HR of 1.43 for chronic renal disease (95% CI 0.94, 2.17) in patients with CD + T1D compared with T1D only. In addition, for end-stage renal disease there was a positive (albeit statistically non-significant) HR of 2.54 (95% CI 0.45, 14.2). For chronic renal disease, the excess risk was more pronounced after >10 years of CD (HR 2.03, 95% CI 1.08, 3.79). Risk estimates were similar when we restricted our cohort to the following T1D patients: (1) those who had an inpatient diagnosis of T1D; (2) those who had never received oral glucose-lowering medication; and (3) those who had not received their first diabetes diagnosis during pregnancy. Overall this study found no excess risk of chronic renal disease in patients with T1D and CD. However, in a subanalysis we noted a positive association between longstanding CD and chronic renal disease in T1D.
    Diabetologia 03/2014; 57(7). DOI:10.1007/s00125-014-3223-y · 6.88 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: Abstract Aims: Dental personnel are exposed to mercury when using dental amalgam. This exposure constitutes a potential hazard to offspring of women working in dentistry. The present study examined increased mortality risk in offspring of mothers working in dentistry. Methods: Mortality was compared between sons of dental personnel and sons of nondental health-care personnel. Hazard ratios were calculated for three decades (1960s-1980s), when the magnitude of mercury exposure in dentistry was likely to have varied. Results: During the 1960s, there was a statistically significant increase in the risk of neonatal mortality for sons of dental nurses when compared with sons of assistant nurses: hazard ratio (HR) 1.82 (95% confidence interval, CI: 1.04-3.22). There was no increased risk in the subsequent decades, but a trend test demonstrated a consistent decrease in the risk over the three decades: HR for trend 0.63 (95% CI: 0.44-0.90). The raised mortality risk was limited to neonatal mortality. The comparison between dentists and physicians had insufficient statistical power. Conclusions: There is no increased mortality risk among sons of female dentists after the 1960s. Although the results should be interpreted with caution, they suggest a modestly raised risk of neonatal mortality, during the 1960s, when exposure to mercury was thought to be highest.
    Journal of Perinatal Medicine 03/2014; 42(5). DOI:10.1515/jpm-2013-0270 · 1.43 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Both breastfeeding duration and age at gluten introduction have been implicated in the pathogenesis of celiac disease (CD). We hypothesized that parental CD affects the feeding pattern of the offspring, mediated by parental health awareness increasing adherence to infant feeding guidelines. Prospectively collected infant feeding data were obtained through the All Babies in Southeast Sweden (ABIS) study. Information regarding infant feeding was available in 9,414 children. Twenty-two mothers had a history of biopsy-verified CD before delivery of a child in the study, 9,392 mothers had no diagnosis of CD prior to birth and thus constituted the unexposed or control population. Cox regression was used to compare the risk of early weaning and gluten introduction according to parental CD status, and logistic regression to assess if mothers with CD were more likely to breastfeed their children at gluten introduction. Some 63% of children were breastfeed for at least 9 months. We found no association between maternal CD and early weaning (adjusted hazard ratio (HR), 1.0; 95% confidence interval (CI), 0.6-1.7), nor between paternal CD and early weaning (HR 0.5; 95% CI, 0.1-1.9). Sixty percent of children were introduced to gluten in months 5-6. Maternal CD was not associated with age at gluten introduction (adjusted HR, 0.8; 95% CI, 0.6-1.3) There was no statistically significant association between maternal CD and breastfeeding at time of gluten introduction (OR, 1.4; 95% CI, 0.4-4.7). Feeding patterns do not seem to vary between offspring to mothers with CD and those without.
    Journal of pediatric gastroenterology and nutrition 02/2014; 59(1). DOI:10.1097/MPG.0000000000000326 · 2.87 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: The pattern of opioid use after skeletal trauma is a neglected topic in pain medicine. The purpose of this study was to analyse the long-term prescriptions of potent opioids among patients with tibial shaft fractures. Data were extracted from the Swedish National Hospital Discharge Register, the National Pharmacy Register, and the Total Population Register, and analysed accordingly. The study period was 2005-2008. We identified 2,571 patients with isolated tibial shaft fractures. Of these, 639 (25%) collected a prescription for opioids after the fracture. The median follow-up time was 17 (interquartile range [IQR] 7-27) months. Most patients with opioid prescriptions after fracture were male (61%) and the median age was 45 (16-97) years. The leading mechanism of injury was fall on the same level (41%). At 6 and 12 months after fracture, 21% (95% CI 17-24) and 14% (11-17) were still being treated with opioids. Multiple Cox regression-analysis (adjusted for age, sex, type of treatment, and mechanism of injury) revealed that older patients (age >50 years) were more likely to end opioid prescriptions (Hazard ratio 1.5 [95% CI 1.3-1.9]). During follow-up, the frequency of patients on moderate and high doses declined. Comparison of the daily morphine equivalent dose among individuals who both had prescriptions during the first 3 months and the 6th month indicated that the majority of these patients (11/14) did not have dose escalations. We did not see any signs in registry-data of major dose escalations over time in patients on potent opioids after tibial shaft fractures.
    BMC Anesthesiology 01/2014; 14(1):4. DOI:10.1186/1471-2253-14-4 · 1.33 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: Primary sclerosing cholangitis (PSC) is associated with increased mortality. Cardiovascular disease is a leading cause of death in the Western world. We examined the risk of cardiovascular disease and diabetes (type 1 and type 2) in patients with PSC and their first-degree relatives. This prospective multicentre cohort study included 678 individuals with PSC diagnosed between 1970 and 2004 and 6347 non-PSC reference individuals matched for age, and sex. Through linkage of the Swedish Multigeneration Register we identified 3139 first-degree relatives to PSC patients and 30,953 first-degree relatives to the matched comparison cohort. We retrieved data on cardiovascular disease and type 1 and type 2 diabetes (T1D and T2D) from the National Patient Register, and then examined the association with PSC or having a family history of PSC using Poisson regression. During 125,127 person-years of follow-up, 203 individuals with PSC had a diagnosis of cardiovascular disease. This corresponded to an 3.34-fold increased relative risk (RR) of cardiovascular disease in individuals with PSC (95%CI=2.86-3.91). The highest risk estimates were seen for diseases of the arteries, veins, and lymphatic vessels while the RR was neutral for ischemic heart disease (0.90) or only slightly elevated for cerebrovascular disease (1.74). Meanwhile, PSC first-degree relatives were at no increased risk of cardiovascular disease (RR=0.87; 95%CI=0.80-0.95). Individuals with PSC (RR=7.95; 95%CI=4.82-13.12), and to some extent also their first-degree relatives (RR=1.73; 95%CI=1.19-2.52) were at increased risk of T1D. Also for T2D were the RRs higher in individuals with PSC (RR=2.54; 95%CI=1.56-4.13) than in PSC first-degree relatives (RR=0.81; 95%CI=0.65-1.02). PSC was associated with T1D, T2D and non-ischemic cardiovascular disease. In contrast, first-degree relatives to PSC patients were only at a moderately increased risk of T1D, and at no increased risk of either cardiovascular disease or T2D.
    Journal of Hepatology 11/2013; 60(4). DOI:10.1016/j.jhep.2013.11.017 · 10.40 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: As brain tumours and their treatment may theoretically have a poorer prognosis in inflammatory central nervous system diseases such as multiple sclerosis (MS), all-cause mortality following a brain tumour diagnosis was compared between patients with and without MS. The potential role of age at tumour diagnosis was also examined. Hospital inpatients in Sweden with assessment of mortality in hospital or following discharge. Swedish national registers identified 20 543 patients with an MS diagnosis (1969-2005) and they were matched individually to produce a comparison cohort of 204 163 members of the general population without MS. Everyone with a primary brain tumour diagnosis was selected for this study: 111 with MS and 907 without MS. 5-year mortality risk following brain tumour diagnosis and age at brain tumour diagnosis. A non-statistically significant lower mortality risk among patients with MS (lower for those with tumours of high-grade and uncertain-grade malignancy and no notable difference for low-grade tumours) produced an unadjusted HR (and 95% CI) of 0.75 (0.56 to 1.02). After adjustment for age at diagnosis, grade of malignancy, sex, region of residence and socioeconomic index, the HR is 0.91 (0.67-1.24). The change in estimate was largely due to adjustment for age at brain tumour diagnosis, as patients with MS were on average 4.7 years younger at brain tumour diagnosis than those in the comparison cohort (p<0.001). Younger age at tumour diagnosis may contribute to mortality reduction in those with high-grade and uncertain-grade brain tumours. Survival following a brain tumour is not worse in patients with MS; even after age at brain tumour diagnosis and grade of malignancy are taken into account.
    BMJ Open 11/2013; 3(11):e003622. DOI:10.1136/bmjopen-2013-003622 · 2.06 Impact Factor

Publication Stats

6k Citations
1,495.53 Total Impact Points


  • 2010–2015
    • Örebro universitet
      • School of Health and Medical Sciences
      Örebro, Örebro, Sweden
  • 2003–2015
    • Karolinska University Hospital
      • Department of Neurology
      Tukholma, Stockholm, Sweden
  • 2001–2015
    • Karolinska Institutet
      • Clinical Epidemiology Unit
      Сольна, Stockholm, Sweden
  • 2008–2014
    • Akademiska Sjukhuset
      Uppsala, Uppsala, Sweden
    • University of Pavia
      Ticinum, Lombardy, Italy
    • Örebro County Council
      Örebro, Örebro, Sweden
  • 2005–2014
    • Örebro University Hospital
      • • Clinical Research Center (KFC)
      • • Department of Internal Medicine
      Örebro, Örebro, Sweden
  • 2011–2013
    • Mid Sweden University
      Härnösand, Västernorrland, Sweden
  • 2007–2011
    • Uppsala University
      • Department of Medical Sciences
      Uppsala, Uppsala, Sweden
  • 2000–2011
    • Imperial College London
      • Department of Primary Care and Public Health
      Londinium, England, United Kingdom
  • 2005–2009
    • Stockholm University
      Tukholma, Stockholm, Sweden
  • 2003–2007
    • Ludwig-Maximilians-University of Munich
      • Institute for Social Pediatrics and Adolescent Medicine
      München, Bavaria, Germany
  • 2006
    • Harvard University
      Cambridge, Massachusetts, United States
  • 1998–2000
    • Royal Free Academy of PMC
      Londinium, England, United Kingdom
    • National University Hospital of Iceland
      Reikiavik, Capital Region, Iceland
  • 1997–2000
    • Royal Free London NHS Foundation Trust
      Londinium, England, United Kingdom
  • 1999
    • University College London
      • Division of Medicine
      London, ENG, United Kingdom
  • 1997–1999
    • University of London
      Londinium, England, United Kingdom
  • 1995–1996
    • City University London
      Londinium, England, United Kingdom