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

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

Covariates Survey Year 2007 Survey Year 2013 Survey Year 2007 Survey Year 2013 Survey Year 2007 Survey Year 2013
Overall Tobacco Usea Smoking Tobacco Usea Smokeless Tobacco Usea
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  
  1. CI Confidence Interval. TK: Bangladeshi currency (1 USD ≈ 85 TK)
  2. aDependent variable