Table 4 Asthma prevalence in each sampling area in Henan Province from January 2010 to June 2010
From: Epidemiology of bronchial asthma and asthma control assessment in Henan Province, China
Sampling area | No. of samples | Cases of asthma | Prevalence of asthma (%) | P value |
|---|---|---|---|---|
Urban area | 7,924 | 88 | 1.11 ± 0.23 | <0.01* |
Zhongyuan District in Zhengzhou (economic level – H) | 4,017 | 34 | 0.846 ± 0.28 | |
Longting District in Kaifeng (economic level – L) | 3,907 | 54 | 1.382 ± 0.37 | 0.02** |
Rural area | 11,792 | 57 | 0.483 ± 0.12 | |
Zhongmu County (economic level – H) | 4,180 | 33 | 0.789 ± 0 .27 | |
High-tech zone in Puyang City (county) (economic level – L) | 3,894 | 6 | 0.154 ± 0.12 | <0.01*** |
Mengjin County (economic level – M) | 3,718 | 18 | 0.484 ± 0.22 |