Table 6.
Author | Study type | N | Primary versus secondary stroke prevention | Treatment group; blood pressure target | Comparison group | Stroke outcome |
---|---|---|---|---|---|---|
Sipahi et al37 | Meta-analysis | 70,664 | Primary | <140/90 | Placebo | RR 0.78 (95% CI 0.71–0.86) |
Lee et al.38 | Meta-analysis | 42,572 | Primary | SBP < 130 mmHg compared to 130–139 mmHg | Placebo | RR 0.80 (0.70–0.92) |
Cushman et al39 (ACCORD trial) | RCT | 4733 | Primary | Diabetic patients, SBP < 120 mmHg | SBP target < 140 mmHg | HR 0.59, 95% CI 0.39–0.89 |
Okin et al.40 (LIFE trial) | RCT | 9193 | Primary | SBP target < 130 mmHg and SBP target 131–141 mmHg | SBP target ≥ 142 mmHg | SBP < 130 mgHg: OR 1.08, 95% CI 0.79–1.47 SBP 131–141 mmHg: OR 1.06, 95% CI 0.47–0.79 |
McAllister et al.41 | Meta-analysis | 80,594 | Primary | Patients with CVD, no HTN | Placebo | OR 0.91, 95% CI 0.86–0.97 |
Thompson et al.42 | Meta-analysis | 21,872 | Primary | Patients with CVD, no HTN | Placebo | 0.77, 95% CI 0.61–0.98 |
Benavente et al49 (SPS3 trial) | RCT | 3020 | Secondary | SBP target <130 mmHg 2 weeks after lacunar stroke | SBP 130–149 mmHg | HR0.81,95%CI 0.6–1.03 |
RCT, randomized clinical trial; SBP, systolic blood pressure; RR, relative risk; HR, hazard ratio; OR, odds ration; CVD, cardiovascular disease; HTN, hypertension; ACCORD, Action to Control Cardiovascular Risk in Diabetes; LIFE, Losartan Intervention For Endpoint reduction in hypertension; SPS3 trial, Secondary Prevention of Small Subcortical Strokes trial.