Table 2.

Prevalence of impaired lung function among participants, stratified by gender.

	No Incense Burning			Incense Burning			P for comparison
	n a	N b	Prevalence, %	n a	N b	Prevalence, %
All	44	341	12.9	10	35	28.6	0.02*
Men	22	202	10.9	6	20	30.0	0.03*
Women	22	139	15.8	4	15	26.7	0.28

*P < 0.05 between groups.

^aThe number of participants with impaired lung function.

^bThe number of participants in the exposed group and the non-exposed group.