Table 1 Distribution of sex, age, urbanization, geography, income, co-morbidity, and medication of individuals with asthma and without asthma

Age, yr, mean (SD)

47.72 ± 17.73

47.72 ± 17.73

1

Sex

Male

15460 (44.1%)

46380 (44.1%)

Female

19626 (55.9%)

58878 (55.9%)

Age Group

1

18-29

6534 (18.6%)

19602 (18.6%)

30-39

6307 (18.0%)

18921 (18.0%)

40-49

6411 (18.3%)

19233 (18.3%)

50-59

5751 (16.4%)

17253 (16.4%)

≥60

10083 (28.7%)

30249 (28.7%)

Urbanization

<0.05

Provinces

8777 (25.0%)

28167 (26.8%)

Counties

2568 (7.3%)

8464 (8.0%)

Districts

8988 (25.6%)

26504 (25.2%)

Urban villages

14753 (42.0%)

42123 (40.0%)

Geography

<0.05

North

18559 (52.9%)

52460 (49.8%)

Central

6502 (18.5%)

18653 (17.7%)

South

9151 (26.1%)

31605 (30.0%)

East

874 (2.5%)

2540 (2.4%)

Income

<0.05

<18000

15880 (45.3%)

49785 (47.3%)

18000-35000

14363 (40.9%)

40763 (38.7%)

>35000

4843 (13.8%)

14710 (14.0%)

Co-morbidity

Diabetes

1457 (4.2%)

2811 (2.7%)

<0.05

Hypertension

2472 (7.0%)

4467 (4.2%)

<0.05

Hyperlipidemia

1629 (4.6%)

2983 (2.8%)

<0.05

Heart Disease

2115 (6.0%)

3152 (3.0%)

<0.05

Obesity

91 (0.3%)

105 (0.1%)

<0.05

Medication

Steroids

19720 (56.2%)

24373 (23.2)

<0.05