|
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
|
