Shisha Smoking Habit among Dental School Students in the United Arab Emirates: Enabling Factors and Barriers

Table 6

Prevalence rate of ever smoked shisha stratified by grade and sex.

	Total	Ever smoked shisha	%	95% confidence interval
	N	N
Female					0.002
First and second grade	131	40	30.5	(22.6 to 38.4)
Third and fourth grade	121	21	17.4	(10.6 to 24.1)
Fifth and sixth grade	78	31	39.7	(28.9 to 50.6)
Total female	330	92	27.9	(23 to 32.7)
Male					0.12 (NS)
First and second grade	29	27	93.1	(83.9 to 102.3)
Third and fourth grade	20	15	75.0	(56 to 94)
Fifth and sixth grade	18	13	72.2	(51.5 to 92.9)
Total male	67	55	82.1	(72.9 to 91.3)

(chi-square) for male-female differences is <0.00.