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Objective: To determine the benefit of multifactorial treatment on microvascular complications among people with type 2 diabetes detected by screening., Research Design and Methods: This study was a multicenter cluster randomized controlled trial in primary care with randomization at the practice level. In four centers in Denmark; Cambridge, U.K.; the Netherlands; and Leicester, U.K., 343 general practices participated in the trial. Eligible for follow-up were 2,861 of the 3,057 people with diabetes detected by screening included in the original trial. Biomedical data on nephropathy were collected in 2,710 (94.7%) participants, retinal photos in 2,190 (76.6%), and questionnaire data on peripheral neuropathy in 2,312 (80.9%). The prespecified microvascular end points were analyzed by intention to treat. Results from the four centers were pooled using fixed-effects meta-analysis., Results: Five years after diagnosis, any kind of albuminuria was present in 22.7% of participants in the intensive treatment (IT) group and in 24.4% in the routine care (RC) group (odds ratio 0.87 [95% CI 0.72-1.07]). Retinopathy was present in 10.2% of the IT group and 12.1% of the RC group (0.84 [0.64-1.10]), and severe retinopathy was present in one patient in the IT group and seven in the RC group. Neuropathy was present in 4.9% and 5.9% (0.95 [0.68-1.34]), respectively. Estimated glomerular filtration rate increased between baseline and follow-up in both groups (4.31 and 6.44 mL/min, respectively)., Conclusions: Compared with RC, an intervention to promote target-driven, intensive management of patients with type 2 diabetes detected by screening was not associated with significant reductions in the frequency of microvascular events at 5 years., (© 2014 by the American Diabetes Association.)

Background: Early detection and treatment of the metabolic syndrome may prevent diabetes and cardiovascular disease. Our aim was to assess remission of the metabolic syndrome and its determinants after a population based screening without predefined intervention in the Netherlands., Methods: In 2006 we detected 406 metabolic syndrome cases (The National Cholesterol Education Program's Adult Treatment Panel III (NCEP ATP III) definition) among apparently healthy individuals with an increased waist circumference. They received usual care in a primary care setting. After three years metabolic syndrome status was re-measured. We evaluated which baseline determinants were independently associated with remission., Results: The remission rate among the 194 participants was 53%. Baseline determinants independently associated with a remission were the presence of more than three metabolic syndrome components (OR 0.46) and higher levels of waist circumference (OR 0.91), blood pressure (OR 0.98) and fasting glucose (OR 0.60)., Conclusions: In a population with screen-detected metabolic syndrome receiving usual care, more than half of the participants achieved a remission after three years. This positive result after a relatively simple strategy provides a solid basis for a nation-wide implementation. Not so much socio-demographic variables but a higher number and level of the metabolic syndrome components were predictors of a lower chance of remission. In such cases, primary care physicians should be extra alert.

Aims: To describe and compare attendance rates and the proportions of people identified with Type 2 diabetes mellitus in people with previously unknown diabetes who participated in screening programmes undertaken in general practice in the UK, Denmark and the Netherlands as part of the ADDITION-Europe study., Methods: In Cambridge, routine computer data searches were conducted to identify individuals aged 40-69 years at high risk of Type 2 diabetes using the Cambridge Diabetes Risk Score. In Denmark, the Danish Diabetes Risk Score was mailed to individuals aged 40-69 years, or completed by patients visiting their general practitice. In the Netherlands, the Hoorn Symptom Risk Questionnaire was mailed to individuals aged 50-69 years. In these three centres, high-risk individuals were invited to attend subsequent steps in the screening programme, including random blood glucose, HbA(1c) , fasting blood glucose and/or oral glucose tolerance test. In Leicester, eligible people aged 40-69 years were invited directly for an oral glucose tolerance test. In all centres, Type 2 diabetes was defined according to World Health Organization 1999 diagnostic criteria., Results: Attendance rates ranged from 20.2% (oral glucose tolerance test in Leicester without pre-stratification) to 95.1% (random blood glucose in opportunistic screening in Denmark in high-risk people). The percentage of people with newly detected Type 2 diabetes from the target population ranged from 0.33% (Leicester) to 1.09% (the Netherlands)., Conclusions: Screening for Type 2 diabetes was acceptable and feasible, but relatively few participants were diagnosed in all participating centres. Different strategies may be required to increase initial attendance and ensure completion of screening programmes., (© 2011 The Authors. Diabetic Medicine © 2011 Diabetes UK.)

Objective: Determination of both the feasibility and the result in terms of cardiovascular risk factors of self-measurement of waist circumference by apparently healthy people. We also investigated the prevalence of metabolic syndrome in a population of patients aged 20-69 years in IJsselstein, the Netherlands., Design: Cross-sectional survey., Methods: All patients aged 20-69 years in the care of a group of General Practitioners (GPs) in IJsselstein, the Netherlands, who were not known to have diabetes, hypertension or dyslipidaemia (n = 11,862), received a tape measure and instructions by mail with the request to measure their waist circumference. Those with an increased waist circumference (> 88 and > 102 cm for women and men, respectively) were invited to undergo investigations to determine whether they conformed to the NCEP ATP III criteria for metabolic syndrome. The prevalence of metabolic syndrome was determined by a combination of these results with file studies of those with already known risk factors for cardiac and vascular disease., Results: The total response rate was 62%. The intraclass correlation between the waist circumference measured by the respondents and by the investigators was 0.80 (p < 0.05). 473 new cases of metabolic syndrome were detected among 1721 persons with an increased waist circumference on self-measurement, 40 % in people younger than 45 years. The total prevalence among those aged 20-69 years in IJsselstein was 15.5%. Only 39% of the people with the metabolic syndrome were already known to have risk factors., Conclusions: A GP initiated screening system for metabolic syndrome, in which self-measurement of waist circumference was the first step, proved to be feasible and reliable. A substantial group of people aged less than 45 years and at increased cardiovascular risk were also detected using this method of population screening.

Objectives: To determine the feasibility of population-based screening for metabolic syndrome (MetS) in primary care with self-measurement of waist circumference (WC) as first step, and the prevalence of MetS in a Dutch city., Methods: A survey of 14,000 people on the list of primary care physicians in the city of IJsselstein. All adults between 20 and 70 years on July 1st, 2006 were asked to measure their WC using a mailed tape measure. Participants with a high WC (>88/102 cm for women/men) were invited for assessment of other factors defining MetS. For patients already known with cardiovascular risk factors, these data were collected from medical records., Results: 11,862 subjects were invited, of whom 6843 (58%) measured their WC. 2004 had a WC>88/102 cm and 1721 participated in all examinations. In 473 MetS was detected. The sensitivity of the screening was 77%, the negative predictive value 96%. The prevalence of MetS, including patients known with cardiovascular risk factors, was 15.5%., Conclusions: A primary care physician-driven population screening with self-measurement of WC can identify adults with MetS. The estimated prevalence of MetS is 15.5%. This procedure creates possibilities for targeted screening, prevention and treatment of people who are at increased cardiovascular risk.