Table 1 Characteristics of participants (n=14 635) by Chinese categories of BMI at 25 years of age
BMI at age 25 yearsa (kg m−2) | |||||
|---|---|---|---|---|---|
<18.5 | 18.5~23.9 | 24~27.9 | ⩾28 | P-value | |
No. of participants | 1391 | 10 953 | 2152 | 139 | |
Age (years) | 45.6±7.2 | 46.6±7.1 | 47.8±7.0 | 48.8±7.8 | <0.001 |
Men (%) | 460 (33.1) | 5654 (51.6) | 848 (39.4) | 54 (38.9) | <0.001 |
Urban (%) | 824 (59.2) | 4563 (41.7) | 637 (29.6) | 44 (31.7) | <0.001 |
Education | <0.001 | ||||
Primary school or below (%) | 352 (25.3) | 3763 (34.4) | 1013 (47.1) | 63 (45.3) | |
Junior high school (%) | 456 (32.8) | 3643 (33.3) | 706 (32.8) | 48 (34.5) | |
High school or equivalent (%) | 434 (31.2) | 2552 (23.3) | 340 (15.8) | 21 (15.1) | |
At least some college (%) | 149 (10.7) | 995 (9.1) | 93 (4.3) | 7 (5.0) | |
Current smokers (%) | 273 (19.6) | 3592 (32.8) | 586 (27.2) | 46 (33.1) | <0.001 |
Current alcohol drinkers (%) | 258 (18.6) | 3112 (28.4) | 511 (23.8) | 37 (26.6) | <0.001 |
Family history of hypertension (%) | 592 (42.6) | 4126 (37.7) | 783 (36.4) | 67 (48.2) | <0.001 |
Systolic blood pressure (mm Hg) | 119.3±18.8 | 122.7±19.2 | 125.9±21.1 | 133.6±22.6 | <0.001 |
Diastolic blood pressure (mm Hg) | 76.3±11.2 | 78.4±11.7 | 79.8±12.5 | 82.5±12.9 | <0.001 |
