Correlation between indoor air pollution and adult respiratory health in Zunyi City in Southwest China: situation in two different seasons

Table 6 Difference in the prevalence of asthma-like symptoms and asthma between subjects with high and low sleeping-area risk scores in winter and summer

Sleeping area risk factors	Winter		Summer
	Asthma-like symptoms and asthma
	Yes (n)	No (n)	Yes (n)	No (n)
Subjects with high sleeping-area risk scores	92	480	16	147
Subjects with low sleeping-area-risk scores	66	569	30	417
Pearson Chi-square	8.564^a		1.651^a
p value	0.002**		0.134

^aChi-square test, α = 0.05; *significant at p < 0.05, **significant at p < 0.01

ISSN: 1471-2458