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Table 4 The odds ratio and 95% confidence interval for factors influencing tobacco use among youths from selected South-Asian countries, GYTS 2007

From: A cross-country comparison of tobacco consumption among youths from selected South-Asian countries

Factors Bangladesh Nepal Sri Lanka
OR 95% C.I OR 95% C.I OR 95% C.I
Age in years
13 - - - - - -
14 1.13 (0.69-1.86) 1.47 (0.78-2.76) 0.96 (0.45-2.04)
15 1.54 (0.90-2.64) 2.29** (1.20-4.37) 2.77** (1.05-7.31)
Gender
Female - - - - - -
Male 1.31 (0.89-1.95) 1.77** (1.10-2.87) 2.12*** (1.29-3.50)
Educational grade
Seventh - - - - - -
Eighth 1.02 (0.57-1.83) 0.63 (0.36-1.10) - -
Ninth 1.40 (0.77-2.54) 1.35 (0.76-2.39) 1.40 (0.65-3.02)
Tenth 1.39 (0.76-2.53) 1.25 (0.65-2.32) 1.29 (0.66-2.38)
Parental tobacco use
No - - - - - -
Yes 1.04 (0.68-1.60) 1.10 (0.69-1.88) 1.05 (0.69-1.61)
Friends’ tobacco use
No - - - - - -
Yes 1.94*** (1.30-2.89) 4.10*** (2.64-6.38) 2.34*** (1.36-4.02)
Smoking at home in last 7 days in presence of youths
No - - - - - -
1-4 days 1.80** (1.09-2.96) 1.98** (1.17-3.35) 2.25*** (1.31-3.88)
5-7 days 1.70** (1.02-2.81) 1.81** (1.08-2.79) 3.96*** (1.82-8.62)
Smoking at other places in last 7 days in presence of youths
No - - - - - -
1-4 days 1.67* (0.98-2.85) 3.36*** (1.93-5.87) 1.44 (0.80-2.57)
5-7 days 2.67*** (1.59-4.47) 5.22*** (2.76-9.85) 1.76* (1.05-2.88)
Offering free tobacco products by sales men
No - - - - - -
Yes 3.08*** (1.97-4.83) 1.31 (0.71-2.42) 2.57* (0.93-7.09)
Advertisement seen in hoarding, bus-stop, rail stations
None - - - - - -
A few 0.90 (0.51-1.59) 0.91 (0.49-1.69) 0.89 (0.51-1.53)
A lot 1.46 (0.87-2.45) 0.94 (0.50-1.82) 1.61 (0.85-3.06)
Taught in class about danger of smoking
No - - - - - -
Yes 0.56*** (0.38-0.84) 0.60* (0.41-0.89) 0.58** (0.35-0.94)
Discussed smoking & health as part of a lesson
Never - - - - - -
During the survey year 0.79 (0.47-1.56) 0.45*** (0.25-0.78) 0.66* (0.41-0.99)
Preceding years of survey 0.67** (0.43-0.92) 0.45*** (0.27-0.73) 0.67* (0.42-1.02)
  1. *P < 0.05, **P < 0.01, ***P < 0.001 (P-values); odds ratio (OR), confidence interval (C.I).