Table 1 Socio-demographic characteristics of the respondents
Socio-demographic characteristics | Subject | |
|---|---|---|
Number (n = 1207) | Percentage (%) | |
Gender | ||
Male | 588 | 48.7 |
Female | 619 | 51.3 |
Age distribution (years) | ||
18–39 | 493 | 40.8 |
40–59 | 485 | 40.2 |
≥ 60 | 229 | 19.0 |
Ethnic group | ||
Han | 1154 | 95.6 |
Ethnic of minority | 53 | 4.4 |
Marital status | ||
Not-married | 208 | 17.2 |
Married | 999 | 82.8 |
Education | ||
Senior high school and above | 771 | 63.9 |
Below senior high school | 436 | 36.1 |
BMI (kg/m2) | ||
Underweight (BMI < 18.5 kg/m2) | 212 | 17.6 |
Normal weight (18.5 ≤ BMI < 23 kg/m2) | 757 | 62.7 |
Overweight (BMI ≥ 23 kg/m2) | 238 | 19.7 |
Asthma-like symptoms and asthma in childhood | ||
Yes | 268 | 22.2 |
No | 939 | 77.8 |
Familial history of asthma-like symptoms and asthma | ||
Yes | 375 | 31.1 |
No | 832 | 68.9 |
Monthly household income | ||
Low household income | 247 | 20.5 |
High household income | 960 | 79.5 |
Occupational exposure to dust or gas | ||
Yes | 242 | 20.0 |
No | 965 | 80.0 |