期刊
DIABETES CARE
卷 43, 期 8, 页码 1878-1884出版社
AMER DIABETES ASSOC
DOI: 10.2337/dc19-2047
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资金
- National Heart, Lung, and Blood Institute (NHLBI) [R21-HL-145494]
- National Institute of Diabetes and Digestive and Kidney Diseases [R01-DK-091437]
- University of Utah Study Design and Biostatistics Center (U.S. Public Health Service research grants from the National Center for Research Resources) [UL1-RR-025764, C06-RR-11234]
- NHLBI
- National Institutes of Health
OBJECTIVE To examine whether low baseline diastolic blood pressure (DBP) modifies the effects of intensive systolic blood pressure (SBP) lowering on cardiovascular outcomes in type 2 diabetes mellitus (T2DM). RESEARCH DESIGN AND METHODS The Action to Control Cardiovascular Risk in Diabetes Blood Pressure trial (ACCORD BP), a two-by-two factorial randomized controlled trial, examined effects of SBP (<120 vs. <140 mmHg) and glycemic (HbA(1c)<6% vs. 7.0-7.9% [<42 vs. 53-63 mmol/mol]) control on cardiovascular events in T2DM (N= 4,731). We examined whether effects of SBP control on cardiovascular composite were modified by baseline DBP and glycemic control. RESULTS Intensive SBP lowering decreased the risk of the cardiovascular composite (hazard ratio [HR] 0.76 [95% CI 0.59-0.98]) in the standard glycemic arm but not in the intensive glycemic arm (HR 1.06 [95% CI 0.81-1.40]). Spline regression models relating the effects of the intervention on the cardiovascular composite across the range of baseline DBP did not show evidence of effect modification by low baseline DBP for the cardiovascular composite in the standard or intensive glycemic arms. The relation between the effect of the intensive SBP intervention and baseline DBP was similar between glycemic arms for the cardiovascular composite three-way interaction (P= 0.83). CONCLUSIONS In persons with T2DM, intensive SBP lowering decreased the risk of cardiovascular composite end point irrespective of baseline DBP in the setting of standard glycemic control. Hence, low baseline DBP should not be an impediment to intensive SBP lowering in patients with T2DM treated with guideline-recommended standard glycemic control.
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