Age, mean (SD), y |
52.0 (9.1) |
Body mass index at baseline, kg/m2
|
24.0 (3.4) |
Body mass index at age 50, kg/m2
|
23.5 (3.3) |
Body mass index at age 20, kg/m2
|
19.6 (2.5) |
Average adult body mass index, kg/m2
|
22.6 (2.5) |
Education level, % |
≤ Elementary school |
21.6 |
Middle school |
36.9 |
High school |
27.9 |
≥ College |
13.6 |
Occupation, % |
Professionals, technicians, administrators |
28.7 |
Clerical and service workers |
20.8 |
Manufacturing and agricultural workers |
50.6 |
Annual family income, yuan, % |
< 10,000 |
16.2 |
10,000 to < 20,000 |
38.3 |
20,000 to < 30,000 |
28.1 |
≥ 30,000 |
17.5 |
Postmenopausal, % |
49.6 |
Hormone therapy, % |
2.1 |
Ever smoked cigarettes, % |
2.8 |
Ever drank alcohol, % |
2.2 |
Regular exercise, mean, hr/wk |
2.0 (3.7) |