J Erikssen

University of Oslo, Kristiania (historical), Oslo County, Norway

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Publications (141)718.89 Total impact

  • Willy Aasebø, Gunnar Orskaug, Jan Erikssen
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    ABSTRACT: BACKGROUND In 2002 the Politiarrestprosjektet (a police custody project in Norway) examined deaths in Norwegian police cells during the period from 1993 to 2001. They found a total of 36 deaths, 16 of which were due either to acute alcohol poisoning or to head injuries suffered by people who had been detained for intoxication. A range of preventive measures were proposed. We have now reviewed deaths in the period from 2003 to 2012 and compared them with the first study.MATERIAL AND METHOD We asked all police districts in Norway to submit information about deaths in police cells from 2003 up to and including 2012. Autopsy reports, police reports and reports from the Norwegian Bureau for the Investigation of Police Affairs were requested.RESULTS Altogether 11 deaths were reported, i.e. an average of 1.1 deaths per year. The most usual cause of death with six fatalities was a combination of toxic substances. Three deaths were due to suicide, one was a natural death, and one was due to acute alcohol poisoning. There were no deaths due to head injuries related to intoxication.INTERPRETATION The number of deaths in Norwegian police cells has declined considerably. It is primarily the number of alcohol-related deaths that has fallen.
    Tidsskrift for den Norske laegeforening 02/2014; 134(3):291-4.
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    ABSTRACT: To examine the impact of physical fitness (PF) on the association between fasting serum triglycerides (FTG) and diabetes risk and whether temporal changes in FTG predict diabetes risk in healthy middle-aged men. FTG and PF (bicycle exercise test) were measured in 1962 men aged 40-59 years in 1972-1975 (Survey 1) and repeated in 1387 still healthy men on average 7.3 years later (Survey 2). Diabetes was diagnosed according to WHO 1985-criteria. During 35 years follow-up 202/1962 (10.3%) men developed diabetes. Compared with the lowest, the upper FTG tertile had a 2.58-fold (95% CI: 1.81-3.74) diabetes risk adjusted for age, fasting blood glucose and maternal diabetes, and a 2.29-fold (95%CI: 1.60-3.33) when also adjusting for PF. Compared with unchanged (±25%) FTG levels (n=664), FTG reduction of more than 25% (n=261) was associated with 56% lower (0.44; 95% CI: 0.24-0.75) diabetes risk, while FTG increase of more than 25% (n=462) was associated with similar risk. These associations were unchanged when adjusted for PF and PF change. High FTG-levels predicted long-term diabetes risk in healthy middle-aged men, and the association was only modestly weakened when adjusted for PF. A reduction in FTG was associated with decreased diabetes risk.
    Diabetes research and clinical practice 07/2013; · 2.74 Impact Factor
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    ABSTRACT: To determine whether a low-grade systolic murmur, found at heart auscultation, in middle-aged healthy men influences the long-term risk of aortic valve replacement (AVR) and death from cardiovascular disease (CVD). Setting and subjects.  During 1972-1975, 2014 apparently healthy men aged 40-59 years underwent an examination programme including case history, clinical examination, blood tests and a symptom-limited exercise ECG test. Heart auscultation was performed under standardized conditions, and murmurs were graded on a scale from I to VI. No men were found to have grade V/VI murmurs. Participants were followed for up to 35 years. A total of 1541 men had no systolic murmur; 441 had low-grade murmurs (grade I/II) and 32 had moderate-grade murmurs (grade III/IV). Men with low-grade murmurs had a 4.7-fold [95% confidence interval (CI) 2.1-11.1] increased age-adjusted risk of AVR, but no increase in risk of CVD death. Men with moderate-grade murmurs had an 89.3-fold (95% CI 39.2-211.2) age-adjusted risk of AVR and a 1.5-fold (95% CI 0.8-2.5) age-adjusted increased risk of CVD death. Low-grade systolic murmur was detected at heart auscultation in 21.9% of apparently healthy middle-aged men. Men with low-grade murmur had an increased risk of AVR, but no increase in risk of CVD death. Only 1.6% of men had moderate-grade murmur; these men had a very high risk of AVR and a 1.5-fold albeit non-significant increase in risk of CVD death.
    Journal of Internal Medicine 11/2011; 271(6):581-8. · 6.46 Impact Factor
  • Journal of Hypertension - J HYPERTENSION. 01/2010; 28.
  • Journal of Hypertension 01/2010; 28. · 4.22 Impact Factor
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    ABSTRACT: Objectives: The aim of the present study was to investigate the role of soluble circulating adhesion molecules (CAMs) in total and cardiac death in patients who had suffered premature myocardial infarction (MI). Design: A prospective cohort study with 10 years follow-up. We measured concentrations of CAMs (intercellular adhe-sion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1), E-selectin, and P-selectin) in stored plasma samples from series from 206 men and 56 women hospitalized for myocardial infarction. Results: Concentrations of CAMs were significantly associated with one another, with other markers of inflammation, and with some classic coronary risk factors. ICAM-1 was the only significant predictor of death, but after adjustment for se-rum C-reactive Protein (CRP), ICAM-1 was no longer associated to mortality. The three other CAMs (VCAM-1, E-selectin and P-selectin) did not predict death or major cardiac events. Conclusions: Our data indicate that the measurement of these adhesion molecules is unlikely to add significant predictive information to that provided by more established risk factors. However, the present study suggests an association between CAMs and between CAMs and traditional risk factors as total cholesterol, CRP and Lp(a) lipoprotein.
    The Open Inflammation Journal 09/2008; 1(1).
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    ABSTRACT: Despite side effects associated with the use of antiepileptic drugs (AEDs), withdrawal of AEDs remains controversial, even after prolonged seizure freedom. The main objective of this study was to assess the effects of AED withdrawal on cognitive functions, seizure relapse, health-related quality of life (HRQOL), and EEG results. Additionally, potential predictors for freedom from seizures after AED withdrawal were studied. Patients, seizure-free for more than 2 years on AED monotherapy, were recruited for a controlled, prospective, randomized, double-blinded withdrawal study lasting for 12 months, or until seizure relapse. Patients were randomized to AED withdrawal (n = 79) and nonwithdrawal (n = 81) groups. The examination program included clinical neurological examinations, neuropsychological testing, EEG-recordings, cerebral MRI, and assessments of HRQOL. Follow-up data on seizure relapse were also collected beyond the 12-month study period (median 47 months). Seizure relapse at 12 months occurred in 15% of the withdrawal group and 7% of the nonwithdrawal group (RR 2.46; 95% CI: 0.85-7.08; p = 0.095). After withdrawal, seizure relapse rates were 27% after a median of 41 months off medication. A normal result to all 15 neuropsychological tests increased significantly from 11% to 28% postwithdrawal. We found no significant effects of withdrawal on quality of life and EEG. Predictors for remaining seizure-free after AED-withdrawal over 1 year were normal neurological examination and use of carbamazepine prior to withdrawal. Seizure-free epilepsy patients on AED monotherapy who taper their medication may improve neuropsychological performance with a relative risk of seizure relapse of 2.46, compared to those continuing therapy.
    Epilepsia 04/2008; 49(3):455-63. · 3.91 Impact Factor
  • Knut Stavem, Jan Erikssen
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    ABSTRACT: In various diseases, resting respiratory rate (RR) is associated with mortality. We hypothesized that RR could be an early marker of low-grade disease and hence be associated with mortality also in healthy individuals. The objective of the study was to assess if resting RR was associated with long-term mortality in healthy males. In a cohort of healthy men aged 40-59, we studied the relation of RR in 1972-1975 with all-cause and respiratory mortality until 2000. We used Cox proportional hazards models to calculate hazard ratios (HRs) and 95% confidence intervals (CIs). Among 1,623 men, 615 died during follow-up, 96 from respiratory causes. Men in the upper RR quartile (>16 breaths/min) had higher all-cause mortality than in the lowest quartile (<13 breaths/min), HR 1.29 (95% CI 1.04-1.60, P=0.02), though this was not statistically significant in multivariable models. Resting RR was not associated with respiratory mortality. RR at rest was not independently associated with long-term all-cause or respiratory mortality in this cohort of healthy men.
    Journal of Clinical Epidemiology 07/2007; 60(7):742-5. · 5.48 Impact Factor
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    ABSTRACT: To assess how ethanol in potential lethal serum concentrations affects features of the ECG that may be associated with cardiac arrhythmias. We included 84 patients, who were hospitalised with assumed acute ethanol intoxication. In the emergency room resting ECG was recorded and blood was collected for serum osmolality measurement used as a proxy for ethanol level. Thirty-two also had ECG recorded at discharge. Twenty-seven hospitalised patients without known alcohol ingestion served as controls. ECG segment durations were compared with controls and related to intoxication level. In subjects with moderately elevated to high serum osmolality, the P wave and QTc intervals were prolonged compared with sober subjects. P wave, PR, QRS and QTc intervals were longer when the subjects had high blood ethanol levels (at admission) than at discharge (p-values: 0.0001, 0.0002, 0.010 and <0.0001 for P wave, PR, QRS and QTc intervals. n=32). Ethanol at high to very high blood concentration causes several changes in the ECG that might be associated with increased risk of arrhythmias.
    Scandinavian Cardiovascular Journal 04/2007; 41(2):79-84. · 0.82 Impact Factor
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    K Stavem, L Sandvik, J Erikssen
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    ABSTRACT: It is well known that pulmonary function is associated with all-cause and cardiovascular (CV) death. Less is known about the association between respiratory symptoms and mortality and whether such an association is independent of physical fitness. In this study, we assessed the association of breathlessness and productive cough with CV and all-cause mortality over 26 years. Prospective occupational cohort study. In 1972-75, 1999 apparently healthy men aged 40-59 years were recruited to the study from five companies in Oslo, Norway. At study entry clinical, physiological and biochemical parameters including respiratory symptoms, spirometry, and an objective assessment of physical fitness were measured in all subjects, of whom 1,623 had acceptable spirometry. The data was analysed using Cox proportional hazards analysis, adjusting for age, lung function, physical fitness, and other possible confounders, with mortality until 2000. After 26 years (range 25-27), 615 men (38%) had died, of whom 308 (50%) from CV deaths. In multivariable proportional hazards models, 'having phlegm winter mornings' [hazard ratio (HR) 1.30, P = 0.01], 'breathlessness when hurrying/walking uphill' (HR 1.43, P = 0.005) and combinations of the two symptoms remained significant predictors of all-cause mortality. None of six respiratory symptoms were significant predictors of CV mortality in multivariable models. Phlegm, breathlessness and combinations of them were associated with all-cause mortality, even after adjusting for physical fitness, known CV and other risk factors such as smoking, and lung function. The finding of an association also after adjustment for physical fitness is new. In contrast, none of the six respiratory symptoms individually or in combination were associated with CV mortality in multivariable analysis.
    Journal of Internal Medicine 11/2006; 260(4):332-42. · 6.46 Impact Factor
  • Knut Stavem, Leiv Sandvik, Jan Erikssen
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    ABSTRACT: To determine if the Global Initiative for Chronic Obstructive Lung Disease (GOLD) stage 0 (subjects at risk for COPD) provides information about long-term mortality risk. From 1972 to 1975, clinical, physiologic, and biochemical parameters including respiratory symptoms, spirometry, and physical fitness were measured in 1,999 healthy men aged 40 to 59 years in an occupational cohort, of whom 1,623 had acceptable spirometry findings. In a proportional hazards model with follow-up until 2000, we assessed all-cause mortality according to GOLD stage 0, I, II, and III compared with "normal" subjects, after adjusting for known risk factors and potential confounders. After 26 years (range, 25 to 27 years), 615 men (38%) had died. In multivariate proportional hazards models, GOLD stage 0 subjects had a nonsignificantly increased hazard of death (hazard ratio [HR], 1.19; p = 0.21) after adjustment for age, smoking, physical fitness, body mass index, systolic BP, and serum cholesterol. Similarly, subjects in GOLD stage I (HR, 1.30; p = 0.05) and stage II (HR, 1.77; p < 0.0001) had increased all-cause mortality. When expanding GOLD stage 0 to comprise patients with any respiratory symptom in a sensitivity analysis, the HR for all-cause mortality increased (HR, 1.35; p = 0.03). There probably is an excess mortality among GOLD stage 0 subjects compared to symptom-free subjects; however, this should be interpreted cautiously and the results vary with the definition of the GOLD stage 0. Subjects in GOLD stage I or stage II had higher mortality than symptom-free subjects.
    Chest 08/2006; 130(2):318-25. · 7.13 Impact Factor
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    ABSTRACT: Blood pressure and resting heart rate were examined by standardized procedures in 33 air traffic controllers during a period of occupational conflict in 1981, followed by a reexamination of 27 of them in 1982 when the conflict was resolved, and again in 23 of them in 1988 when there was no conflict.The mean systolic blood pressure in the 27 air traffic controllers in 1982 was 116 mmHg as against 136 in 1981, a highly significant difference (p < 0.001). In 1988 the mean blood pressure was 121 mmHg in the 23 air traffic controllers examined on all three occasions, i.e. still significantly lower than in 1981 and only 5 mmHg higher than in 1982, roughly equivalent to the expected increase due to increase in age. The mean diastolic pressure was significantly higher (p < 0.001) in 1981 (90–87) than in 1982 (75–73) and 1988 (81–78), and thus slightly higher in 1988 than in 1982 as expected, due to age. The resting heart rates were essentially unaffected.The effect of occupational conflict on the blood pressures reported here should be kept in mind when considering blood pressure levels in occupational groups. It may in fact explain some of the conflicting results reported in the literature concerning the blood pressure of air traffic controllers.
    Stress Medicine 02/2006; 6(2):141 - 144.
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    ABSTRACT: Lung function has been associated with mortality after adjusting for other risk factors; however, few studies have adjusted for physical fitness and reported separate analyses according to smoking status. In 1972-1975, spirometry, clinical and physiological parameters were recorded in 1,623 apparently healthy males aged 40-59 yrs. After 26 yrs of follow-up, the current authors investigated the association between baseline lung function and mortality, adjusting for smoking, physical fitness and other potential factors. By 2000, 615 individuals (38%) had died, with 308 (50%) of these deaths from cardiovascular (CV) causes. Forced expiratory volume in one second was a predictor of all-cause mortality (risk ratio (RR) 1.10 per reduction of 10%) after adjusting for smoking, physical fitness, age, systolic blood pressure, body mass index and serum cholesterol. The corresponding multivariate RR was 1.07 for CV causes and 1.34 for respiratory death. In conclusion, in stratified analyses among current and former smokers, forced expiratory volume in one second % predicted was a strong independent predictor of all-cause mortality and respiratory death among current smokers. Forced expiratory volume in one second % predicted was not associated with mortality among never-smokers.
    European Respiratory Journal 05/2005; 25(4):618-25. · 6.36 Impact Factor
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    ABSTRACT: To assess the quality of the imaging procedure requests and radiologists' reports using an auditing tool, and to assess the agreement between different observers of the quality parameters. In an audit using a standardized scoring system, three observers reviewed request forms for 296 consecutive radiological examinations, and two observers reviewed a random sample of 150 of the corresponding radiologists' reports. We present descriptive statistics from the audit and pairwise inter-observer agreement, using the proportion agreement and kappa statistics. The proportion of acceptable item scores (0 or +1) was above 70% for all items except the requesting physician's bleep or extension number, legibility of the physician's name, or details about previous investigations. For pairs of observers, the inter-observer agreement was generally high, however, the corresponding kappa values were consistently low with only 14 of 90 ratings >0.60 and 6 >0.80 on the requests/reports. For the quality of the clinical information, the appropriateness of the request, and the requested priority/timing of the investigation items, the mean percentage agreement ranged 67-76, and the corresponding kappa values ranged 0.08-0.24. The inter-observer reliability of scores on the different items showed a high degree of agreement, although the kappa values were low, which is a well-known paradox. Current routines for requesting radiology examinations appeared satisfactory, although several problem areas were identified.
    Clinical Radiology 12/2004; 59(11):1018-24. · 1.66 Impact Factor
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    ABSTRACT: To determine whether men with possible angina (from their responses to the World Health Organization angina questionnaire) but a normal exercise ECG differ in long term rates of coronary heart disease events from men with no symptoms of angina. During 1972-75, 2014 apparently healthy men aged 40-59 years underwent an examination programme including case history, clinical examination, exercise ECG to exhaustion, and various other tests. All men completed the WHO angina questionnaire. Of 2014 men, 68 had possible angina, 1831 had no symptoms of angina, and 115 were excluded because they had definite angina or pathological exercise ECGs. All 68+1831 had normal exercise ECGs and none developed chest pain during the exercise test. At 26 years, men with possible angina had a coronary heart disease mortality of 25.0% (17/68) v 13.8% (252/1831) among men with no symptoms of angina (p < 0.013). They also had a higher incidence of coronary artery bypass grafting (CABG) (p < 0.0004) and acute myocardial infarction (p < 0.026). The excess coronary heart disease mortality among men with possible angina only started after 15 years, whereas differences in CABG/acute myocardial infarction started early. Multivariate analysis including well recognised coronary heart disease risk factors showed that possible angina was an independent risk factor (relative risk 1.79, 95% confidence interval 1.26 to 2.10). Men with possible angina, even with a normal exercise test, have a greater risk of dying from coronary heart disease, having an acute myocardial infarct, or needing a CABG than age matched counterparts with no symptoms of angina.
    Heart (British Cardiac Society) 07/2004; 90(6):627-32. · 5.01 Impact Factor
  • Willy Aasebø, Jan Erikssen, Jørgen Jonsbu
    Tidsskrift for Den norske legeforening 05/2003; 123(8):1066-7.
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    ABSTRACT: To explore plasma total homocysteine (tHcy) as a predictor of long-term prognosis after premature myocardial infarction (MI). Prospective cohort study. Akershus University Hospital. A total of 247 patients (193 men and 54 women) in stable clinical phase after premature MI (males: first MI at age < or =55; females < or =60). The primary end-point was total mortality and the secondary end-point was cardiac death. The third end-point was major cardiac events: a combination of cardiac death, MI and cardiac arrest. After 10 years, 44 patients had died, 36 from cardiac causes. Major cardiac event occurred in 70 patients. The relative risk for death of all causes increased 1.43 (95% CI, 1.08-1.88) per tHcy quartile (P for trend = 0.01), and was only modestly reduced after adjustment for age, ejection fraction, total cholesterol, C-reactive protein, fibrinogen, smoking and hypertension to 1.37 (95% CI, 1.04-1.80) (P for trend = 0.03). Similar results were observed when cardiac death was used as the end-point, but we observed no association between tHcy and the end-point major cardiac event. Total homocysteine was an independent predictor of total and cardiac mortality in stable patients following premature MI. tHcy had no effect on major cardiac event in contrast to most other risk factors in this study. Thus, the mechanism(s) underlying the effects of homocysteine on coronary heart disease may differ from other risk factors.
    Journal of Internal Medicine 03/2003; 253(3):284-92. · 6.46 Impact Factor
  • Kjell E Arnesen, Jan Erikssen, Knut Stavem
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    ABSTRACT: In a system with implicit queue management, to examine gender and socioeconomic status as determinants of waiting time for inpatient surgery, after adjusting for other potential predictors. A cohort of 452 subjects was examined in outpatient clinics of a general hospital and referred to inpatient surgery. They were followed until scheduled hospital admission (n=396) or until the requested procedure no longer was relevant (n=56). We compared waiting time between groups from referral date until hospital admission, using Kaplan-Meier estimates of waiting times and log rank test. A Cox proportional hazards model was used for assessing the risk ratio (RR) of hospital admission for scheduled surgery. Gender and socioeconomic status could not explain variations in waiting time. However, patients with suspected/verified neoplastic disease or a risk of serious deterioration without treatment had markedly shorter waiting times than the reference groups, with adjusted RR (95% confidence intervals (95%CI)) of time to receiving in-patient surgery of 2.3 (1.7-3.0) and 2.0 (1.3-3.0), respectively. Being on sick leave was associated with shorter waiting time, adjusted RR of 1.7 (1.2-2.5). Referrals from within the hospital or other hospitals had also shorter waiting times than referrals from primary health care physicians, adjusted RR=1.4 (1.1-1.8). There was no evidence of bias against women or people in lower socioeconomic classes in this implicit queue management system. However, patients' access to inpatient surgery was associated with malignancy, prognosis, sick leave status, physician experience, referral pattern and the major diagnosis category.
    Health Policy 01/2003; 62(3):329-41. · 1.55 Impact Factor
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    ABSTRACT: The role of antithrombotic therapy in secondary prevention after myocardial infarction is well established. Although the available literature suggests that warfarin is superior to aspirin, aspirin is currently the more widely used drug. We studied the efficacy and safety of warfarin, aspirin, or both after myocardial infarction. In a randomized, multicenter trial in 3630 patients, 1216 received warfarin (in a dose intended to achieve an international normalized ratio [INR] of 2.8 to 4.2), 1206 received aspirin (160 mg daily), and 1208 received aspirin (75 mg daily) combined with warfarin (in a dose intended to achieve an INR of 2.0 to 2.5). The mean duration of observation was four years. The primary outcome, a composite of death, nonfatal reinfarction, or thromboembolic cerebral stroke, occurred in 241 of 1206 patients receiving aspirin (20.0 percent), 203 of 1216 receiving warfarin (16.7 percent; rate ratio as compared with aspirin, 0.81; 95 percent confidence interval, 0.69 to 0.95; P=0.03), and 181 of 1208 receiving warfarin and aspirin (15.0 percent; rate ratio as compared with aspirin, 0.71; 95 percent confidence interval, 0.60 to 0.83; P=0.001). The difference between the two groups receiving warfarin was not statistically significant. Episodes of major, nonfatal bleeding were observed in 0.62 percent of patients per treatment-year in both groups receiving warfarin and in 0.17 percent of patients receiving aspirin (P<0.001). Warfarin, in combination with aspirin or given alone, was superior to aspirin alone in reducing the incidence of composite events after an acute myocardial infarction but was associated with a higher risk of bleeding.
    New England Journal of Medicine 09/2002; 347(13):969-74. · 54.42 Impact Factor
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    ABSTRACT: Atherosclerosis is an inflammatory disease. C-reactive protein (CRP), a marker of inflammation, is associated with coronary heart disease (CHD). We measured CRP in a cohort of 247 patients (193 males and 54 females) who had had their first myocardial infarction (MI) at age < or = 55 (males) or < or = 60 (females). The cut-off values of the 25th, 50th and 75th centiles of CRP were 1.20, 2.37 and 4.20 mg/l. After 10 years, a total of 44 patients (17.8%) had died, 36 (81.8%) of cardiac causes. Unadjusted and adjusted (i.e. for age, ejection fraction (EF), serum total cholesterol (TC), fibrinogen, smoking and hypertension) relative risks (RRs) for total and cardiac mortality were generated. CRP was a strong predictor of death of all causes due to its strength as predictor of cardiac death. The RR of cardiac death was doubled with increasing CRP quartiles, and patients in the top quartile had six times as high risk of cardiac death as patients in the lowest quartile. The RRs were moderately attenuated after adjustment, but still significant. We conclude that CRP is a strong predictor of mortality in patients with premature MI. Thus, inflammation appears to be a critical prognostic factor in patients with previous premature MI.
    Atherosclerosis 02/2002; 160(2):433-40. · 3.71 Impact Factor

Publication Stats

3k Citations
718.89 Total Impact Points


  • 1983–2013
    • University of Oslo
      • • Faculty of Medicine
      • • Division of Medicine
      • • Department of Radiology and Nuclear Medicine (ARN)
      • • Institute of Medical Informatics (IMI)
      • • Department of Medical Genetics (DMG)
      Kristiania (historical), Oslo County, Norway
  • 1993–2011
    • Oslo University Hospital
      • Department of Cardiology
      Oslo, Oslo, Norway
  • 2006
    • National Institute of Occupational Health (STAMI)
      Kristiania (historical), Oslo County, Norway
  • 2004
    • Akershus universitetssykehus
      Kristiania (historical), Oslo County, Norway
  • 2001
    • Statens leggemiddelverk
      Kristiania (historical), Oslo County, Norway
  • 1981
    • Hospital Bærum
      Drammen, Buskerud county, Norway
  • 1977–1979
    • Drammen Sykehus
      Drammen, Buskerud county, Norway