Changes in prevalence, and factors associated with tobacco use among Bangladeshi school students: evidence from two nationally representative surveys

Table 3 Factors associated with overall, smoking, and smokeless tobacco use among adolescents for both survey years (Model II) by binary logistic regression analysis

Covariates	Survey Year 2007		Survey Year 2013		Survey Year 2007		Survey Year 2013		Survey Year 2007		Survey Year 2013
	Overall Tobacco Use^a				Smoking Tobacco Use^a				Smokeless Tobacco Use^a
	Odds Ratio (95% CI)	P-value	Odds Ratio (95% CI)	P-value	Odds Ratio (95% CI)	P-value	Odds Ratio (95% CI)	P-value	Odds Ratio (95% CI)	P-value	Odds Ratio (95% CI)	P-value
Sex
Female	1		1		1						1
Male	1.97 [0.99–3.92]	0.050	3.07 [1.56–6.04]	0.002	3.89 [1.67–9.05]	0.003					2.59 [1.13–5.92]	0.026
Age
Younger than 14 years			1		1		1				1
Equal to 14 years			1.66 [0.89–3.11]	0.109	0.46 [0.17–1.25]	0.123	1.85 [0.63–5.43]	0.249			1.80 [0.67–4.80]	0.231
Older than 14 years			3.94 [2.22–7.01]	<.001	1.52 [0.61–3.75]	0.356	3.76 [1.30–10.90]	0.017			3.47 [1.65–7.30]	0.002
Grade
7th					1
8th					4.75 [1.26–18.00]	0.024
9th or above					6.73 [1.65–27.40]	0.010
Average pocket money (per month)
Less than or equal to 160 TK	1				1
More than 160 TK	4.26 [2.07–8.80]	<.001			6.10 [2.34–15.88]	<.001
Favoured banning smoking at public places
Yes			1		1		1
No			1.80 [1.00–3.24]	0.049	2.54 [1.15–5.63]	0.023	5.58 [2.10–14.81]	0.001
Average cost per packet cigarette (20 cigarettes)
More than 200 Tk			1				1
Less than or equal to 75 TK			1.55 [0.67–3.59]	0.298			11.52 [2.67–49.66]	0.002
Between 76 to 200 TK			6.62 [3.19–13.71]	<.001			40.63 [11.05–149.4]	<.001
Noticed anyone smoking in the school
No			1								1
Yes			2.19 [1.23–3.91]	0.01							2.68 [1.65–4.37]	<.001
Exposed to tobacco smoke
Yes	3.26 [1.46–7.29]	0.006	5.43 [1.63–18.07]	0.008	3.41 [1.56–7.47]	0.004	7.45 [1.68–33.11]	0.010	3.36 [1.25–9.03]	0.018	5.36 [1.45–19.86]	0.014
No	1		1		1		1		1		1

ISSN: 1471-2458