S Vaaler

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

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Publications (42)105.51 Total impact

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    ABSTRACT: H�ydosebehandling med autolog stamcellest�tte (HMAS) er rutinebehandling hos selekterte grupper av pasienter med malignt lymfom og myelomatose. Hva er kostnadene ved denne type behandling? I perioden mai 2001-desember 2001 utf�rte vi en prospektiv kostnadsanalyse av behandlingsforl�p som grovt kan deles i 3 faser: 1) den tumorreduserende kjemoterapifasen, 2) fasen med mobilisering, h�sting og nedfrysing av autologe stamceller og 3) selve h�ydosefasen (HMAS-fasen). 30 pasienter med myelomatose ble fulgt ved tre forskjellige universitetssykehus og 10 pasienter med lymfom ble fulgt ved det fjerde sykehuset. Direkte pasientrelaterte kostnader ble registrert daglig. Indirekte kostnader ble fordelt p� pasientene basert p� estimater og ut fra forh�ndsdefinerte fordelingsn�kler fra relevante avdelinger. Alle kostnadsdata ble beregnet i 2001 priser. Den gjennomsnittlige totale kostnaden for alle tre faser var kr. 306 904 kr (variasjonsbredde 244 035-379 127). Vi fant en statistisk signifikant korrelasjon mellom varighet av sykehusopphold og sykehusenes kostnader i alle tre behandlingsfaser. En stor del av kostnadene i h�stefasen var knyttet til medikamenter brukt til stamcellemobilisering. I h�ydosefasen, som var den mest kostnadskrevende fasen, var de st�rste kostnadene knyttet til sykepleiepersonalet. Det var betydelige variasjoner i kostnader mellom sykehusene. Den gjennomsnittlige totalkostnaden var vesentlig h�yere enn full DRG-pris for myelomatose og myelomatose i 2001. Sykehusene m�tte selv b�re differansen mellom de reelle kostnadene og DRG-prisen. Per i dag (2008) er differansen redusert da det er etablert en sideutbetaling for HMAS- behandling.
    Oslo University, Health Economics Research Programme, HERO On line Working Paper Series. 01/2009;
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    ABSTRACT: To determine whether the present system of reimbursement, based on diagnosis-related groups and regular financial budgeting, covers the costs incurred during hospitalisation of 7 children undergoing the three stages of the Norwood sequence for surgical treatment of hypoplastic left heart syndrome. Between January and September 2003, 7 patients underwent initial surgical palliation with the Norwood procedure at the Rikshospitalet University Hospital. A prospective methodology was developed by our group to measure the costs associated with each individual patient. The patients were closely observed, and the relevant data was collected during their stay in hospital. The stay was divided into four different periods of requirements of resources, defined as heavy intensive care, light intensive care, intermediate care, and ordinary care. At each stage, we recorded the number of staff involved and the duration of surgery and other major procedures, as well as the cost of pharmaceuticals and other consumables. Based on these data, we calculated the cost for each patient. These costs were compared with the corresponding revenue received by the hospital for each of the patients. We found the total mean cost for the three stages of the Norwood sequence was 138,934 American dollars, while the corresponding revenue received by the hospital was 43,735 American dollars. During this period, one patient died during the first stage of the Norwood sequence. Our study shows that steps involved in the Norwood sequence are low-volume but high-cost procedures. The reimbursement received by our hospital for the procedures was less than one-third of the recorded costs.
    Cardiology in the Young 11/2005; 15(5):493-7. · 0.95 Impact Factor
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    ABSTRACT: High-dose therapy with autologous blood progenitor cell support is now routinely used for patients with certain malignant lymphomas and multiple myeloma. We performed a prospective cost analysis of the mobilization, harvesting and cryopreservation phases and the high-dose therapy with stem cell reinfusion and hospitalization phases. In total, 40 consecutive patients were studied at four different university hospitals between 1999 and 2001. Data on direct costs were obtained on a daily basis. Data on indirect costs were allocated to the specific patient based on estimates of relevant department costs (ie the service department's costs), and by means of predefined allocation keys. All cost data were calculated at 2001 prices. The mean total costs for the two phases were US$ 32,160 (range US$ 19,092-50,550). The mean total length of hospital stay for two phases was 31 days (range 27-37). A large part of the actual cost in the harvest phase was attributed to stem cell mobilization, including growth factors, harvesting and cryopreservation. In the high-dose chemotherapy phase, the most significant part of the costs was nursing staff. Average total costs were considerably higher than actual DRG-based reimbursement from the government, indicating that the treatment of these patients was heavily subsidized by the basic hospital grants.
    Bone Marrow Transplantation 07/2005; 35(12):1149-53. · 3.54 Impact Factor
  • V Mishra, S Vaaler, L Brinch
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    ABSTRACT: High-dose chemotherapy (HDC) with autologous peripheral blood stem cell (PBSC) support is a common but expensive treatment for various hematological malignancies. A prospective cost analysis of evaluation/mobilization and the HDC + PBSC phase for patients with multiple myeloma was performed. Eleven consecutive patients at the National University Hospital Oslo, taking part in a Nordic treatment protocol, were included in the analysis during the period from May 1999 to December 2000. Clinical and resource use data were obtained prospectively on a daily basis registration and from patient records. The total cost for the evaluation/mobilization and the HDC + PBSC phase varied from 22,999 US dollars to 61,722 US dollars (mean 38,186 US dollars; median 30,569 US dollars). The mean length of hospital stay for the evaluation/mobilization phase was 8 days (range 4-17 days) and for the HDC + PBSC phase 19 days (range 14-29 days). A statistically significant correlation was found between the length of hospital stay and hospital costs for both phases (P < 0.003 and P < 0.010, respectively). A large part of the actual cost in the harvest phase was attributed to stem cell mobilization, including growth factors, harvesting and cryopreservation. In the HDC + PBSC phase, the most important part of the cost was paying nursing care personnel.
    Clinical & Laboratory Haematology 07/2003; 25(3):179-84. · 1.11 Impact Factor
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    ABSTRACT: The present study investigated the variability in insulin sensitivity and beta-cell function and their relationship to anti-glutamic acid decarboxylase (GAD) positivity and the metabolic syndrome in a group of patients with non-insulin-dependent diabetes mellitus (NIDDM). Fifty-four subjects aged 59.5 +/- 6.1 (mean +/- SD) years with NIDDM for 7.9 +/- 3.9 years referred to hospital due to poor glycaemic control, were investigated. Insulin sensitivity was determined by the euglycaemic hyperinsulinaemic glucose clamp technique as the glucose disposal rate relative to the insulin level obtained (GDRI), and also estimated with the homeostasis model assessment (HOMA-S). beta-cell function was measured by assaying the fasting and glucagon-stimulated C-peptide levels and with the HOMA-B. The insulin sensitivity varied 18-fold between subjects when estimated with the clamp and six-fold when estimated with HOMA-S, and was lower the more criteria for the metabolic syndrome present (P = 0.0001 by anova). The beta-cell function varied four-fold when measured as stimulated C-peptide, and eight-fold when estimated with the HOMA-B. The levels of fasting C-peptide and HOMA-B values tended to be lower in anti-GAD+ (n = 11) than in anti-GAD-subjects (P = 0.06 and P = 0.08, respectively). From previously published coronary risk charts, we estimated the 10-year risk of a coronary heart disease (CHD) event to be > 20% in 17 of 39 patients free from cardiovascular disease at the time of study, 16 of whom qualified for a diagnosis of the metabolic syndrome. The wide variations in insulin sensitivity and beta-cell function found among subjects with NIDDM support the notion that the disorder is highly heterogeneous. Reduced insulin sensitivity was clearly related to the metabolic syndrome and an increased risk for CHD.
    Diabetic Medicine 01/2003; 20(1):37-45. · 3.24 Impact Factor
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    ABSTRACT: As more and more nations are scrutinizing their health care costs, attention has been focused on high-cost low-density disease. Assessment of actual total cost of care for haemophilia and its positive outcome becomes essential to justify support for these patients. In this study, we assessed hospital cost and diagnosis-related group (DRG) reimbursement for patients undergoing elective orthopaedic surgical procedures from May 1999 to December 1999. Hospital cost was assessed by a prospective microcost-analysis method. To identify real hospital costs, we performed registration of preoperative phase, operative phase and 1-year follow-up costs. Hospital cost included personnel costs and costs for clinical and laboratory procedures, blood products, prosthetic implants, coagulation factor concentrates and drugs. These data were compared with hospital DRG reimbursement. We included nine consecutive patients, with a mean age 38 years (19-54 years) who had had 10 major orthopaedic surgical procedures performed during the study period. Six patients had haemophilia A, two had haemophilia B and one had factor VII deficiency. Data analysis showed a mean cost of US$ 54,201 (range US$ 25,795-105,479; 1US$ = 8.5 NOK). The average actual hospital revenue (50% DRG reimbursement + income related to length of stay) was $4,730 (range $ 1,308-13,601). Our study confirms that orthopaedic surgery in patients with severe bleeding disorders puts the hospital to a considerable expense. Activity-based financing, as used in Norway, does not provide a proper reimbursement for this part of the haemophilia care.
    Haemophilia 12/2002; 8(6):809-14. · 3.17 Impact Factor
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    ABSTRACT: The financing of health care services in Norway has been changed from a system of global budgeting to a system partly based on Diagnosis-Related Groups (DRG). The government has decided to derive a part of the hospital revenue from DRG-based, per-patient financing. The aim of this study is to determine whether the present remuneration system covers the actual hospital expenses of liver transplant patients, and whether the present method of calculating DRG-costs is adequate for our institution. Our group developed a prospective method of determining the actual cost per patient. We closely observed and collected the data of eight liver transplant patients during their hospital stay. We divided each of the patients' resource requirements into four categories; heavy intensive care, light intensive care, intermediate care, and ordinary care. In addition, we recorded the number of staff involved, the duration of surgery, the major procedures, and the medical- and material costs. The actual cost of each patient was calculated, based on these data. The actual cost was compared with the corresponding hospital remuneration for each patient. Median cost for liver transplantation was NOK 536.785 (range: NOK 295.113-NOK 844.345) (1$=7,5 NOK), while the corresponding hospital refund was NOK 457.785 (range: NOK 436.465-NOK 483.040). The difference is not statistically significant ( P=0.2). The average 100% DRG-based cost of a liver transplantation was NOK 730.321, which is significantly higher than the actual cost ( P=0.02). The hospital's reimbursement for liver transplantation did not differ significantly from the actual registered cost. The computed cost was significantly lower than the DRG-based cost.
    Transplant International 11/2002; 15(9-10):439-45. · 3.16 Impact Factor
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    V Mishra, S Vaaler, L Brinch
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    ABSTRACT: The Norwegian Ministry of Health and Social Affairs recently introduced activity-based financing for hospitals partly based on diagnosis-related groups (DRG). We soon observed that there seemed to be a considerable discrepancy between the reimbursement amount and the real cost of allogeneic haemopoietic stem cell transplantation. It was therefore decided to undertake a prospective micro-cost analysis to define a more realistic reimbursement. To identify real costs, we undertook a registration of pre-transplant procedures, transplantation and 1 year follow-up costs, including harvesting, personnel costs, clinical and laboratory procedures, together with blood products and drugs related to patients and donors. These data were compared to hospital DRG reimbursement. This information was registered for 17 consecutive patients, with a mean age 40 years (range 17-58 years). Ten patients had chronic myeloid leukaemia, three had acute lymphatic leukaemia, two had acute myeloid leukaemia and two had myelodysplastic syndrome. The data analysis showed a mean cost of US$ 106825 (NOK 901982), (range US$ 42376-362430). The average actual hospital revenue (50% DRG reimbursement + income related to length of stay + special procedure funding) was US$ 36404 (range US$ 26228-55998). Activity-based financing as applied in Norway, under-compensates hospital costs for allogeneic bone marrow transplantation. The government should make realistic estimates of real costs before introducing financial reforms in the health care system.
    Bone Marrow Transplantation 01/2002; 28(12):1111-6. · 3.54 Impact Factor
  • V Mishra, B Skeie, S Vaaler, E Amlie
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    ABSTRACT: The Norwegian health care system, like other health care systems in the world, is in the midst of a changing financial environment for hospital reimbursement for patient care. Since 1997 the Norwegian government has introduced a new financing model of block grant and activity-based financing. In this model, diagnosis-related groups (DRGs) play an important role in hospital financing. The initial motive for developing the DRGs was to improve hospital productivity and efficiency and to develop a tool to control increasing hospital costs better. We raised the question as to whether the DRG system in fact covers actual costs in patient groups undergoing heart transplantation (n = 12), lung transplantation (n = 4), and thoracotomy for other diseases (n = 10). A new prospective cost model was developed to measure actual costs related to individual patients. The patients were closely observed and the related data collected during the hospital stay. Each patient's hospital stay was divided into four different categories of resource requirements, defined as heavy intensive care, light intensive care, intermediate care, and ordinary care. In addition, the number of staff involved and the duration of surgery and procedures were recorded, as were medicine costs and material costs. Based on these data, the actual costs for each patient were calculated. These were then compared with the respective DRG reimbursement (100 % coverage) for the corresponding group. We found that the median cost for heart transplantation was US$ 50,590 (1 US$ = 7.5 NOK based on the exchange rate at the time of the study), while the respective DRG reimbursement was US$ 65,662. For lung transplantation, the respective figures were US$ 46,668 vs US$ 65,662, and for thoracotomy, US$ 24,307 vs. US$ 11,004. We found that our method was applicable to a hospital setting. DRG coverage for heart and lung transplantation seems to overestimate the actual costs. For the thoracotomy procedure, the DRG coverage did not cover the actual costs.
    Transplant International 01/2002; 14(6):361-9. · 3.16 Impact Factor
  • Tidsskrift for Den norske legeforening 04/2001; 121(7):859.
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    ABSTRACT: Erectile dysfunction (ED) is prevalent and often associated with chronic diseases and previous operations on the prostate. Our aims were to investigate the prevalence of ED among males seeking general practitioners and to register known risk factors. During a short period in late 1998, 49 Norwegian general practitioners in the county of Østfold asked all their male patients over 40 years of age to anonymously fill in a questionnaire. 1,182 men completed the study. 20% stated that they had moderate ED, while 13% had complete ED. The prevalence of ED increased with age. Complete ED was found in 2% of those between 40 and 50, 5% between 50 and 60, 16% between 60 and 70, and in 37% of those above 70 years of age. The corresponding values for moderate ED was 6, 16, 32 and 28%. Moderate/complete ED was increased in the subgroups with hypertension, depression, diabetes, > one concomitant disease, and post prostate surgery. Physically "very active" individuals had less ED than the "non-active". No significant association was found with alcohol or tobacco. Most patients with ED wanted to discuss the problem with their general practitioners, but only 6% received treatment.
    Tidsskrift for Den norske legeforening 01/2001; 121(1):28-32.
  • A B Mathisen, S Vaaler, E Amlie
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    ABSTRACT: Diagnose Related Groups (DRG) are defined on the basis of the principal diagnosis, secondary diagnoses, procedures, age, sex and discharge status, and were developed to improve hospital productivity and efficacy. Existing code systems do not cover all medical specialties equally well; examples are neonatal medicine, cancer treatment and rehabilitation. We have developed a prospective method to measure actual costs related to patients individually. The major element in this method is based upon the hospital stay being divided into types of treatment with different resource requirements: heavy intensive care, light intensive care, intermediate care and ordinary care. In addition, costs related to surgery and other procedures are measured. Our method was used to calculate costs related to neonatal surgery due to various inborn diseases in the gastrointestinal tract and the urinary system. All patients needed immediate care and competent medical intervention. Mean costs for the group was NOK 291,181 while total reimbursement to the hospital was NOK 100,390, resulting in a net negative balance of NOK 190,970. Neonatal surgery does not seem to be adequately covered by the DRG system. This complex patient group provides a comprehensive test of the prospective method, and after evaluation we feel that it can be used in most other patient groups to verify actual cost.
    Tidsskrift for Den norske legeforening 10/2000; 120(22):2666-71.
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    ABSTRACT: To examine whether lp(a) can explain a) the increased cardiovascular morbidity in patients with non-insulin-dependent diabetes mellitus (NIDDM) and b) the wide variation in the tendency for such complications to develop in the patients. Cross-sectional study. General practice in a local community in Norway. One hundred and thirty NIDDM patients and a reference group drawn from a twin study. Lp(a), self-reported cardiovascular disease, urinary albumin excretion. The level of lp(a) was equally distributed in our NIDDM population and a reference group. We found no association between lp(a) and self-reported cardiovascular disease and urinary albumin excretion (UAE). Lp(a) cannot explain the increased risk for cardiovascular disease in NIDDM patients, nor can it explain the variation in the tendency for such complications to develop.
    Scandinavian Journal of Primary Health Care 04/1998; 16(1):40-3. · 1.91 Impact Factor
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    ABSTRACT: The objective of the present study was to assess the relative efficacy of insulin or glibenclamide treatment for non-insulin-dependent diabetes mellitus (NIDDM) over 42 months. We performed a randomised, controlled trial allocating patients treated with diet and oral antihyperglycaemic agents to treatment with glibenclamide or insulin to achieve HbAlc levels under 7.5%. We included 36 subjects with established NIDDM of more than 2 years' duration. Mean HbAlc levels were significantly reduced in patients allocated to insulin treatment from 9.1 +/- 1.4% before the start to 7.8 +/- 1.3% (p < 0.05) after 1 year, and did not change significantly thereafter throughout the study period. Mean HbAlc levels increased during the study in the patients allocated to glibenclamide treatment, and 11 of 18 patients had to be switched to insulin treatment due to increasing hyperglycaemia (HbAlc > 10%). Mean body weight increased in the subjects allocated to insulin by 7.2 +/- 4.1 kg during the study period. In conclusion, insulin was more effective than glibenclamide treatment in obtaining control over hyperglycaemia in these patients, and once improved, glycaemic control did not deteriorate over 42 months in the insulin-treated group. Two thirds of the patients allocated to glibenclamide treatment had to be given insulin due to inadequate glycaemic control.
    Diabetologia 12/1996; 39(12):1629-33. · 6.49 Impact Factor
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    ABSTRACT: Consensus has not been reached about the optimal treatment of type 2 diabetes, and several authors have questioned the use of insulin for this disorder. The reasons are that an association has been found between hyperinsulinaemia and cardiovascular disease in non-diabetic men, and the sparse evidence of a beneficial effect from tight glycaemic control in prevention of late complications in type 2 diabetes. We discuss the pathophysiology of atherosclerosis in type 2 diabetes, and review some of the recent literature. We find it likely that, in the metabolic cardiovascular syndrome found in many patients with type 2 diabetes, insulin resistance is more important than the accompanying hyperinsulinaemia. Furthermore, evidence is emerging of a strong association between hyperglycaemia and atherosclerotic vascular disease in patients with type 2 diabetes. We conclude that insulin treatment should be used in type 2 diabetic patients when the hyperglycaemia cannot be controlled by oral agents.
    Tidsskrift for Den norske legeforening 05/1996; 116(10):1233-5.
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    ABSTRACT: In view of the contradictory results of earlier reports regarding bone mass in patients with non-insulin-dependent diabetes, we measured bone mass using dual X-ray absorptiometry and ultrasound measurements of the right calcaneus in 36 type 2 diabetic subjects, i.e. 21 men and 15 postmenopausal women aged 40-65 years, and compared their bone mass to a sex- and age-matched control group. We also measured several metabolic parameters in the diabetic population and studied the relationship between these metabolic parameters and the bone parameters using correlation analysis. We found a tendency to higher bone mass in the diabetic subjects compared to the normal controls. In the Type 2 diabetic postmenopausal women, fat mass and lean body mass correlated positively with total body bone mineral density (BMD) (r = 0.53 and 0.68), and with total body bone mineral content (BMC) (r = 0.58 and 0.77). Insulin sensitivity (GDR/I) correlated negatively with total body BMC and BMD (r = -0.68 and -0.61). Serum insulin correlated positively with the same bone parameters. When controlling for fat mass or lean body mass using a multiple regression analysis, the correlation between insulin sensitivity and BMD became non-significant. This suggests that body mass is a more important determinant of BMD than hyperinsulinaemia or insulin resistance in diabetic women. Among the diabetic men there was a significant positive correlation between lean body mass and BMC (r = 0.66), between serum oestrone and BMD (r = 0.49) and between serum insulin and femoral neck BMD (r = 0.53).(ABSTRACT TRUNCATED AT 250 WORDS)
    Scandinavian Journal of Clinical and Laboratory Investigation 06/1995; 55(3):257-62. · 1.29 Impact Factor
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    ABSTRACT: An association between insulin resistance and blood pressure levels has been found both in non-diabetic subjects and in type 2 diabetic patients. In non-diabetic subjects, infusion of insulin increases skeletal muscle blood flow, and it has been suggested that an attenuated flow-response to insulin may cause insulin resistance and may also serve as a mechanism relating insulin resistance to elevated blood pressure. We wanted to explore whether these findings could be extended to patients with type 2 diabetes. The effect of insulin infusion during a hyperinsulinaemic euglycaemic glucose clamp investigation on calf blood flow and its relationship to average diastolic blood pressure (DBPAVG), insulin sensitivity (GFRIlbm), body fat and total exercise capacity (TEC) was examined in 11 patients with type 2 diabetes. We found that insulin infusion increased median calf blood flow from 2.3 to 2.7 ml/min.100 g (p = 0.01). The change in blood flow (delta flow) did not correlate to the subjects' average blood pressure levels or their insulin sensitivity. Significant correlations between delta flow and leg fat %, fasting and clamp-insulin levels and total exercise capacity were observed. In conclusion, we found that insulin infusion increased calf blood flow significantly in patients with type 2 diabetes. However, our hypothesis that a negative correlation exists between blood pressure levels and insulin stimulated blood flow, was invalidated. Leg fat was identified as an important predictor of delta flow, GDRILBM and TEC in these patients.
    Blood Pressure 04/1995; 4(2):80-4. · 1.39 Impact Factor
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    ABSTRACT: To examine the probability of impaired glucose tolerance and diabetes, diagnosed with oral glucose tolerance test, at different levels of fasting blood glucose. When indicated, fasting capillary whole blood glucose was measured. Patients with blood glucose ranging from 4.4 to 6.6 mmol/l had an oral glucose tolerance test. General practice. 355 patients had an oral glucose tolerance test. 33% had impaired glucose tolerance and 12% had diabetes. One or more diabetics were found at every level of fasting blood glucose. The probability of finding a diabetic was ten times larger in the fasting blood glucose stratum 6.1 to 6.6 mmol/l than in the fasting blood glucose stratum 4.4 to 4.9 mmol/l. Likelihood ratio increased 30 times from the lowest to the highest stratum. No cutoff point in the interval 4.4 to 6.6 mmol/l had both a high sensitivity and a high specificity for the diagnosis of diabetes. If it is of great importance to find every patient with impaired glucose tolerance and diabetes, one has to do an oral glucose tolerance test in every fraction of the fasting blood glucose range 4.4 to 6.6 mmol/l (according to WHO's diagnostic criteria). Using 5.2 mmol/l as a cutoff point for an oral glucose tolerance test, the sensitivity is still high (0.95), but one would miss a few with diabetes.
    Scandinavian Journal of Primary Health Care 01/1995; 12(4):255-60. · 1.91 Impact Factor
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    ABSTRACT: To examine proinsulin and insulin levels in first-degree relatives of patients with non-insulin-dependent diabetes mellitus (NIDDM). Comparison of insulin and proinsulin responses to an oral glucose tolerance test in four groups of individuals: 1) 31 patients with newly diagnosed NIDDM treated with diet alone, 2) 34 first-degree relatives of NIDDM patients with impaired glucose tolerance (IGT), 3) 26 relatives with normal glucose tolerance (NGT), and 4) 30 subjects without a family history of diabetes. Both fasting and post-glucose levels of proinsulin were elevated in patients with diabetes, but not in the relatives with IGT or NGT. Levels of true insulin were highest in the diabetic group, followed by the subjects with IGT, and were lowest among relatives with NGT. Proinsulin levels correlated with glucose levels, suggesting that hyperglycemia is the main stimulus for increased proinsulin secretion. First-degree relatives of NIDDM patients, who have a high risk of developing diabetes, do not exhibit elevated levels of fasting or glucose-stimulated proinsulin as long as their fasting glucose levels remain normal.
    Diabetes Care 12/1994; 17(11):1307-10. · 7.74 Impact Factor
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    ABSTRACT: To study the effect of insulin and sulfonylurea (SU) therapy on glycaemic control, insulin resistance and cardiovascular risk factors in type 2 diabetic subjects. A prospective, parallel, randomized, controlled, long-term study. Outpatient clinic in tertiary referral centre. Thirty-six type 2 diabetic subjects treated with diet and SU, aged 44-69 years and a duration of diabetes of between 2 and 14 years. Individually adjusted doses of insulin and glibenclamide. Glycosylated haemoglobin (HbA1c), insulin resistance (euglycaemic glucose clamp), levels of lipids, lipoproteins and blood pressure. Glycaemic control improved during insulin treatment, but deteriorated on SU; HbA1c levels differed significantly between groups after 12 months of therapy (mean +/- SEM 7.9 +/- 0.3 vs. 9.5 +/- 0.4%, P = 0.004). Body mass index increased significantly during insulin treatment (26.4 +/- 0.7 to 27.8 +/- 0.7 kg/m2, P = 0.0001) and 30% of this increase was a result of an increase in lean body mass. The total glucose disposal rate showed a small increase in the insulin group. Levels of triglycerides and apolipoprotein B were significantly reduced during insulin treatment (1.8 +/- 0.2 to 1.5 +/- 0.2 mmol L-1, P = 0.03 and 1.58 +/- 0.1 to 1.40 +/- 0.08 g L-1, P = 0.003), and insulin prevented a reduction in the levels of high-density lipoprotein (HDL) cholesterol and apolipoprotein A-1 and an increase in Lp(a) lipoprotein observed in the SU group. Blood pressure levels did not change during therapy. Insulin therapy was superior to SU treatment in achieving good metabolic control. Despite a modest improvement in cardiovascular risk factors in the insulin-treated group, no significant differences were observed between the groups after 1 year's treatment.
    Journal of Internal Medicine 10/1994; 236(3):305-13. · 6.46 Impact Factor

Publication Stats

353 Citations
105.51 Total Impact Points

Institutions

  • 1986–2005
    • Oslo University Hospital
      Kristiania (historical), Oslo County, Norway
  • 1994–1998
    • University of Oslo
      • • Department of General Practice
      • • Department of Community Medicine
      Kristiania (historical), Oslo County, Norway
    • University Hospital of North Norway
      Tromsø, Troms, Norway
  • 1992
    • Universitetet i Tromsø
      • Department of Clinical Medicine (IKM)
      Tromsø, Troms Fylke, Norway