JOURNAL ARTICLE
MULTICENTER STUDY
OBSERVATIONAL STUDY
RESEARCH SUPPORT, NON-U.S. GOV'T
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Relationship between metabolic control and self-monitoring of blood glucose in insulin-treated patients with diabetes mellitus.

OBJECTIVE: To assess the relationship between metabolic control (MC) and frequency of self-monitoring of blood glucose (SMBG) in insulin-treated patients with type 1 (T1DM) and type 2 (T2DM) diabetes mellitus, and to analyze the factors associated to MC.

MATERIAL AND METHODS: A multicenter, cross-sectional, observational study was conducted in which endocrinologists enrolled diabetic patients treated with insulin who used a glucometer. The cut-off value for MC was HbA1c ≤ 7%. Grade of acceptance of the glucometer was assessed using a visual analogue scale (VAS).

RESULTS: A total of 341 patients (53.5% males) with a mean age (SD) 52.8 (16.3) years, mean HbA1c of 7.69% (1.25) and 128 (37.5%) with T1DM and 211 (61.9%) with T2DM were evaluable. SMBG was done by 86.1% at least once weekly. No relationship was seen between MC and SMBG (P=.678) in the overall sample or in the T1DM (P=.940) or T2DM (P=.343) subgroups. In the logistic regression model, hyperglycemic episodes (Exp-b [risk] 1.794, P=0.022), falsely elevated HbA1c values (Exp-b 3.182, P=.005), and VAS (Exp-b 1.269, P=.008) were associated to poor MC in the total sample. Hyperglycemic episodes (Exp-b 2.538, P=.004), falsely elevated HbA1c values (Exp-b 3.125, P=.012), and VAS (Exp-b 1.316, P=.026) were associated to poor MC in the T2DM subgroup, while body mass index (Exp-b 1.143, P=.046) was associated to poor MC in the T1DM subgroup.

CONCLUSIONS: In this retrospective, non-controlled study on patients with DM treated with insulin who used a glucometer, no relationship was seen between the degree of metabolic control and frequency of use of the glucometer.

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