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

Table 5 Differences in the prevalence of asthma-like symptoms and asthma between the subjects with high and low kitchen risk scores in winter and summer

Kitchen risk factors	Winter		Summer
	Asthma-like symptoms and asthma
	Yes (n)	No (n)	Yes (n)	No (n)
Subjects with high kitchen risk score	77	384	30	267
Subjects with low kitchen risk score	81	665	16	297
Pearson Chi-square	8.556^a		5.441^a
p value	0.002**		0.014*

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

ISSN: 1471-2458