Table 1 Demographic characteristics among middle-aged Chinese adults in 2015
Variables | Male | Female | ||
|---|---|---|---|---|
Normal weight (BMI < 24 kg/m2) | Overweight/obese (BMI ≥ 24 kg/m2) | Normal weight (BMI < 24 kg/m2) | Overweight/obese (BMI ≥ 24 kg/m2) | |
N (number) | 1293 (50.9%) | 1247 (49.1%) | 1668 (51.8%) | 1555 (48.2%) |
Region (N, %) | ||||
 Northern | 192 (14.9%) | 262 (21.0%) | 275 (16.5%) | 345 (22.2%) |
 Central | 378 (29.2%) | 435 (34.9%) | 556 (33.3%) | 523 (33.6%) |
 Southern | 723 (55.9%) | 550 (44.1%) | 837 (50.2%) | 687 (44.2%) |
Age (year) | 53.0 (46.3, 59.3) | 50.9 (45.8, 57.0) | 51.4 (45.3, 58.1) | 51.8 (46.3, 58.1) |
Education (N, %) | ||||
 Low | 444 (38.5%) | 517 (44.7%) | 524 (38.7%) | 426 (33.9%) |
 Middle | 473 (41.0%) | 478 (41.3%) | 561 (41.5%) | 529 (42.1%) |
 High | 237 (20.5%) | 163 (14.1%) | 268 (19.8%) | 302 (24.0%) |
Married (N, %) | 1223 (94.6%) | 1208 (96.9%) | 1571 (94.2%) | 1460 (93.9%) |
Household income (1000 yuan) | 15.7 (7.2, 28.0) | 18.0 (8.9, 31.8) | 16.6 (7.3, 30.0) | 15.7 (7.2, 27.9) |
Energy intake (1000 kcal/day) | 2.1 (1.7, 2.7) | 2.2 (1.8, 2.8) | 1.8 (1.4, 2.2) | 1.8 (1.5, 2.3) |
Energy for dietary fat (%) | 35.1 (27.1, 44.3) | 35.6 (28.2, 43.7) | 35.4 (27.7, 43.7) | 35.5 (27.6, 43.6) |
BMI (kg/m2) | 21.8 (20.3, 22.9) | 26.3 (25.2, 27.9) | 22.0 (20.7, 23.0) | 26.4 (25.1, 28.2) |
Current smoking (N, %) | 782 (60.5%) | 627 (50.3%) | 30 (1.8%) | 20 (1.3%) |
Alcohol consumption (N, %) | 745 (57.6%) | 736 (59.0%) | 100 (6.0%) | 99 (6.4%) |
Urbanization Index (score) | 67.7 (54.2, 84.2) | 74.9 (58.5, 89.3) | 73.6 (57.1, 87.0) | 73.3 (57.3, 87.2) |
Sedentary activity time (hr/week) | 15.9 (10.5, 27.0) | 16.0 (10.5, 28.0) | 14.0 (9.0, 24.5) | 14.0 (10.0, 24.5) |