期刊
DIABETES & METABOLISM
卷 29, 期 6, 页码 587-594出版社
MASSON EDITEUR
DOI: 10.1016/S1262-3636(07)70073-3
关键词
self-monitoring blood glucose; type 2 diabetes mellitus; blood glucose control; HbA(1c)
Objective: Self monitoring of blood glucose (SMBG) in type 2 diabetes is a topic of current interest (imbalance between increased health-care costs and improvement in compliance with treatment and diet). An open label randomized prospective study was designed to compare changes in metabolic control over 6 months in patients managed with usual recommendations alone (conventional assessment group) or combined with SMBG. Research design and methods: Patients not treated with insulin or previously self monitored, 40 to 75 years of age, with a diagnosis of type 2 diabetes > 1 year and standardized HbA(1c) level greater than or equal to 7.5 and less than or equal to 11% were randomized to either a control group or SMBG group. They were followed up every 6 weeks over 24 weeks. Patients in the SMBG group were given the same device (Ascensia Esprit(R) Discmeter, Bayer) and were required to perform at least 6 capillary assays a week (3 different days of the week, including weekend). Management of patients was standardized, including drugs, diet and physical activity. The primary efficacy criterion was change in HbA(1c) level in Intent To Treat (ITT) patients. Assays were performed at baseline, at 3 and 6 months using the calibrated DCA 2000(R) device (Bayer). Results: Two hundred sixty five general practitioners randomized 988 patients (ITT Population), but 689 patients were evaluable for the primary criterion. At the endpoint, HbA(1c) was lower in the SMBG group (8.1 +/- 1.6%) than in the conventional treatment group (8.4 +/- 1.4%, P = 0.012). The change in HbA(1c) levels between baseline and endpoint was classified into two classes: improvement if a change > 0.5% occurred, stability or worsening in case of a change less than or equal to 0.5%; 157.1% of patients in the SMBG group vs 46.8% in the control group had an improvement in HbA(1c) level (P = 0.007) after 3 months. A steady state was reached during the last 3 months. A multivariate logistic regression analysis was performed and identified factors predictive of improvement in HbA(1c) levels: HbA(1c) at baseline: odd ratio (OR) = 1.749 (P < 0.001), SMBG group (reference value: SMBG group): OR = 0.665 (P = 0.015), duration of diabetes: OR = 0.953 (P = 0.001) and BMI: OR=0.962 (P = 0.039). Conclusions: This study is the first multicenter, controlled, prospective trial conducted on a large number of patients demonstrating that SMBG was statistically associated with a better quality of metabolic control than usual traditional recommendations alone in type 2 diabetes.
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