Table 1.
Socio-demographic and Personal characteristics of the study participants, China, 2018–2020 (n = 57,501)
| Variables | Frequency(n) | Percentage (%) |
|---|---|---|
| Gender | ||
| Men | 37,240 | 64.8 |
| Women | 20,261 | 35.2 |
| Age (years) | ||
| <25 | 12,085 | 21.0 |
| 25- | 26,139 | 45.5 |
| 35- | 12,301 | 21.4 |
| 45- | 5802 | 10.1 |
| 55- | 1174 | 2.0 |
| Working age (years) | ||
| <2 | 16,061 | 27.9 |
| 2- | 12,072 | 21.0 |
| 4- | 7299 | 12.7 |
| 6- | 9717 | 16.9 |
| 8- | 12,352 | 21.5 |
| Education level | ||
| Junior high school | 15,369 | 26.7 |
| Senior high school | 21,901 | 38.1 |
| University degree | 19,231 | 33 |
| Graduate degree | 1000 | 1.7 |
| Marital status | ||
| Single | 20,997 | 36.5 |
| Married | 35,343 | 61.5 |
| Divorced/Widowed | 1161 | 2.0 |
| Body mass index (BMI) | ||
| <18.5 | 6006 | 10.4 |
| 18.5- | 39,328 | 68.4 |
| 25- | 12,167 | 21.2 |
| Cigarette smoking | ||
| No | 36,527 | 63.5 |
| Occasionally | 10,111 | 17.6 |
| Frequently | 10,863 | 18.9 |