Effect on cardiovascular disease risk factors of interventions to alter consultations between practitioners and patients with type 2 diabetes: A systematic review and meta-analysis of trials in primary care.

In subgroup analyses to explore heterogeneity, we found that interventions with measurable impact on the consultation were associated with reduced HbA 1c levels (weighted mean difference, −0.53%; 95% CI: [−0.77, −0.28]; P <.0001; I 2 =46%) and a trend towards reduced blood pressure levels which did not reach statistical significance: SBP (weighted mean difference, −2.53 mm Hg; 95% CI: [−6.52, 1.46]; P <.21; I 2 =67%) and DBP (weighted mean difference, −0.43 mm Hg; 95% CI: [−2.05, 1.18]; P <.18; I 2 =42%).

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