Table 1 Baseline Characteristics and CVD Incidence Rates at Follow-Up According to Baseline BMI
From: Blood pressure, body mass index and risk of cardiovascular disease in Chinese men and women
Baseline characteristics | Baseline BMI, kg/m2 | P value for trend | |||
|---|---|---|---|---|---|
<18.5 | 18.5-23.9 | 24-27.9 | ≥ 28 | ||
No. of participants | 16,543 | 79,220 | 33,401 | 10,404 | -- |
Systolic BP (mean (SD), mm Hg) | 121.8(22.8) | 123.6(21.2) | 130.5(21.8) | 137.8(23.1) | <0.0001 |
Diastolic BP (mean (SD), mm Hg) | 72.5(11.7) | 75.9(11.4) | 80.9(11.7) | 84.6(12.2) | <0.0001 |
BMI (mean (SD), kg/m2) | 17.2(1.1) | 21.7(1.8) | 26.9(1.3) | 32.6(4.0) | <0.0001 |
Person-years of follow-up | 129,791 | 633,410 | 265,983 | 819,94 | -- |
No. of CVD events | 1,725 | 5,134 | 2,511 | 1046 | -- |
Incidence of CVD, per 100,000 Person-years | 1329.06 | 810.53 | 944.05.19 | 1275.70 | NA |
Age (mean (SD), year) | 60.1(11.5) | 54.7(10.5) | 54.4(9.8) | 56.1(9.5) | <0.0001 |
Men (%) | 45.4 | 52.2 | 47.8 | 36.0 | <0.0001 |
High school education (%) | 11.1 | 21.0 | 32.9 | 28.6 | <0.0001 |
Cigarette smokers (%) | 44.0 | 40.8 | 33.8 | 26.9 | <0.0001 |
Alcohol consumption (%) | 17.4 | 21.9 | 19.1 | 14.5 | <0.0001 |
Physical inactivity (%) | 31.7 | 31.9 | 42.4 | 44.8 | <0.0001 |
North (%) | 41.3 | 60.8 | 77.1 | 85.0 | <0.0001 |
Urban (%) | 35.4 | 51.5 | 78.8 | 84.7 | <0.0001 |
Hypertension(%) | 20.2 | 21.8 | 35.0 | 49.9 | <0.0001 |
Hypertension treatment(%) | 0.9 | 1.5 | 3.9 | 7.0 | <0.0001 |