Every 10 mmHg Lower Cut Heart Events 15%, Kidney Disease or Not

Jeff's Daily Pick. For every 10 points lower systolic blood pressure, cardiovascular events fell 15%, across 27 trials. People with kidney disease benefited at least as much.

In the United Kingdom, researchers led by Fotini Iatridi at the University of Oxford published a systematic review and meta analysis in JAMA Cardiology on October 7, 2026 on intensive versus standard blood pressure lowering. A long running worry has been whether pushing pressure lower in people with chronic kidney disease, or CKD, harms the kidneys more than it helps the heart.

The data

The analysis pooled 27 randomized controlled trials with 88,830 participants. Intensive lowering reduced cardiovascular events by 15% for every 10 mmHg lower systolic pressure (relative risk 0.85; 95% CI 0.81 to 0.89). The effect did not differ by kidney status: 0.89 in people with CKD (95% CI 0.81 to 0.99) and 0.84 without (0.80 to 0.88; p for heterogeneity 0.26). Because people with CKD start at higher risk, the absolute benefit was at least as large: an estimated 4.3 fewer events per 1,000 person years with CKD and 2.7 without.

What happened to the kidneys

Intensive lowering did not change the risk of kidney failure (relative risk per 10 mmHg 0.97; 95% CI 0.84 to 1.11), nor of sustained declines in kidney function of 57% or 50%. It did increase sustained declines of 30% or more by 42% (RR 1.42; 95% CI 1.28 to 1.58) and of 40% or more by 47% (RR 1.47; 95% CI 1.30 to 1.66). The authors conclude that, given the higher baseline cardiovascular risk in CKD, the absolute heart benefit outweighs these changes in a kidney surrogate measure.

The finding fits earlier work: a 2021 Lancet individual participant analysis found that each 5 mmHg reduction cut major cardiovascular events by 10%. What the new analysis adds is the kidney subgroup, where caution has often kept pressure higher. Our piece on measuring blood pressure correctly at home covers the step before any target.