Table 8. Odds ratio and 95% confidence interval of tobacco user in high school students in Nay Pyi Taw.

Variables		Tobacco user	Crude OR (95% CI)	Adjustede) OR (95% CI)
Sex	Male	69 (97.18%)	63.04 (15.06–263.86)*	56.68 (13.42–239.30)*
	Female	2 (2.82%)	1	1
Knowledge level	Lowa)	39 (54.93%)	1.13 (0.66–1.92)	1.00 (0.52–21.95)
	Highb)	32 (45.07%)	1	1
Attitude level	Lowc)	61 (85.92%)	5.63 (2.75–11.55)*	4.55 (2.05–10.08)*
	Highd)	10 (14.08%)	1	1

OR, odds ratio; CI, confidence interval.

*, P < 0.001.

^a)score < 13.

^b)score ≥ 13.

^c)score < 47.

^d)score ≥ 47.

^e)Adjusted by sex, knowledge level and attitude level.