Table 1.
Characteristics of subjects aged 18 years and older by gender in CNHS 2015–2017.
| Characteristics | Total (%) | Male (%) | Female (%) |
|---|---|---|---|
| Total | 72,231 (100) | 34,011 (47.09) | 38,220 (52.91) |
| Age (year) | |||
| 18~49 | 29,900 (41.39) | 13,414 (39.44) | 16,486 (43.13) |
| 50~64 | 27,509 (38.08) | 12,909 (37.96) | 14,600 (38.2) |
| 65~79 | 13,412 (18.57) | 6951 (20.44) | 6461 (16.9) |
| 80~ | 1410 (1.95) | 737 (2.17) | 673 (1.76) |
| Residence | |||
| Urban | 29,359 (40.65) | 13,514 (39.73) | 15,845 (41.46) |
| Rural | 42,872 (59.35) | 20,497 (60.27) | 22,375 (58.54) |
| Education level | |||
| Illiteracy | 20,607 (28.53) | 6539 (19.23) | 14,068 (36.81) |
| Primary or middle school | 36,925 (51.12) | 19,469 (57.24) | 17,456 (45.67) |
| High school or above | 14,699 (20.35) | 8003 (23.53) | 6696 (17.52) |
| Household income level (CNY) | |||
| <20,000 | 15,646 (21.66) | 7576 (22.28) | 8070 (21.11) |
| 20,000~50,000 | 24,367 (33.73) | 11,418 (33.57) | 12,949 (33.88) |
| >50,000 | 20,437 (28.29) | 9587 (28.19) | 10,850 (28.39) |
| Unclear | 11,781 (16.31) | 5430 (15.97) | 6351 (16.62) |
| BMI (kg/m2) | |||
| <18.5 | 2775 (3.84) | 1220 (3.59) | 1555 (4.07) |
| 18.5~23.9 | 33,778 (46.76) | 16,017 (47.09) | 17,761 (46.47) |
| 24~27.9 | 25,384 (35.14) | 12,224 (35.94) | 13,160 (34.43) |
| 28~ | 10,294 (14.25) | 4550 (13.38) | 5744 (15.03) |
| Physical activity | |||
| Low | 17,257 (23.89) | 9071 (26.67) | 8186 (21.42) |
| Medium | 17914 (24.8) | 7788 (22.9) | 10,126 (26.49) |
| High | 37,060 (51.31) | 17,152 (50.43) | 19,908 (52.09) |
Abbreviation: BMI—Body Mass Index; CNY—Chinese Yuan.