Table 1. Sociodemographic characteristics of female participants aged 20–64 years old of China Chronic Disease and Nutrition Surveillance, 2015.
| Characteristics | No. of participants (n=75,287) | Weighted Proportion (%)* |
| * Proportions are weighted to represent the national total population with poststratification for age, gender, and urban/rural residence. | ||
| Age (years old) | ||
| 20–24 | 2,707 | 15.3 |
| 25–34 | 11,251 | 22.2 |
| 35–44 | 15,107 | 26.9 |
| 45–54 | 24,392 | 20.3 |
| 55–64 | 21,830 | 15.4 |
| Residence | ||
| Urban | 32,639 | 41.7 |
| Rural | 42,648 | 58.3 |
| Location | ||
| East | 28,365 | 42.4 |
| Middle | 21,649 | 32.3 |
| West | 25,273 | 25.4 |
| Education | ||
| Primary or less | 36,781 | 35.3 |
| Secondary | 22,500 | 32.5 |
| High | 9,444 | 15.6 |
| College or above | 6,562 | 16.6 |
| Household income per capita (CNY) | ||
| Q1 (<6,000) | 14,503 | 15.6 |
| Q2 (6,000–11,999) | 15,543 | 19.7 |
| Q3 (12,000–21,600) | 17,165 | 23.0 |
| Q4 (21,600 and above) | 15,745 | 24.6 |
| Don’t know/refused to answer | 12,331 | 17.1 |
| Employment status | ||
| Employed | 51,746 | 69.8 |
| Housework | 14,694 | 18.4 |
| Retired | 5,325 | 4.2 |
| Unemployed | 3,522 | 7.6 |
| Health insurance coverage | ||
| No | 2,194 | 4.3 |
| Yes | 73,093 | 95.7 |
| Health examination in the past 3 years | ||
| No | 46,702 | 53.6 |
| Yes | 28,585 | 46.4 |
| Self-assessed health status | ||
| Poor or fair | 43,475 | 61.1 |
| Good | 31,812 | 38.9 |