Prevalence, Correlates, and Perception of E-cigarettes among Undergraduate Students of Kathmandu Metropolitan City, Nepal: A Cross-Sectional Study
Table 3
Odds ratio and 95% CI for various factors associated with current use and ever use of e-cigarettes.
Dependent: current use of EC
aOR (bivariable)
value
bOR (multivariable)
value
Age
18-19
1
1
20-26
5.07 (0.93, 8.19)
0.036
2.03 (0.48, 7.89)
0.51
Sex
Male
6.48 (1.82, 12.19)
0.002
2.88 (1.34, 10.67)
0.008
Female
1
1
No. of friends using e-cigarettes
0 or 1
1
≥2
4.23 (1.73, 14.45)
≤0.001
7.23 (0.93, 22.82)
≤0.001
Number of close friends
≤3
3.33 (1.76, 11.03)
0.020
5.23 (1.26, 16.39)
0.010
>3
1
1
Dependent: ever use of EC
Age
18-19
1
20-26
4.56 (0.98, 6.24)
0.050
1.6 (2.24, 14.11)
0.74
Sex
Male
6.82 (3.56, 13.08)
≤0.001
3.53 (2.15, 10.35)
≤0.001
Female
1
1
No. of friends using e-cigarettes
0 or 1
1
1
≥2
15.56 (8.05, 30.09)
≤0.001
5.90 (1.90, 14.67)
≤0.001
Place of residence
Urban
5.19 (0.83, 8.02)
0.040
2.46 (0.56, 7.56)
0.58
Rural
1
Statistically significant at . 1 represents reference category. aCrude odds ratio. bAdjusted odds ratio. Note: current use of EC was adjusted with age, number of close friend, and number of friends using e-cigarettes, and ever use of EC was adjusted with sex, number of friends using e-cigarettes, place of residence, and age.
