New 2019 JSH guidelines and the risk of incident cardiovascular disease: The Suita Study

Hypertension is the most critical risk factor for cardiovascular disease (CVD). Since the definition of hypertension varies across guidelines, identifying blood pressure (BP) categories that should be targeted to prevent CVD is needed. Herein, we investigated the association between BP per the 2019 Japanese Society of Hypertension (JSH) guidelines and the risk of CVD, stroke, and coronary heart disease (CHD) using data from 7,643 participants (30–84 years) registered in the Suita Study. Within 113,838 person-years (16.6 median years of follow-up), 690 participants developed CVD (411 cases of stroke and 279 cases of CHD). Compared to normal BP (Systolic BP (SBP) < 120 and diastolic BP (DBP) < 80 mmHg), elevated BP (SBP 130–139 and/or DBP 80–89 mmHg) and hypertension (SBP ≥ 140 and/or DBP ≥ 90 mmHg) were associated with a higher risk of CVD, stroke, and CHD. High-normal BP (SBP 120–129 and DBP < 80 mmHg) was associated with a higher risk of CVD and CHD. In conclusion, CVD preventive interventions should begin at lower BP levels than those applied in the 2019 JSH guidelines.