Table 2 Odds ratios, adjusted odds ratio and 95% confidence intervals of depressive symptoms among adolescents.

From: Gender differences in the association between cigarette smoking, alcohol consumption and depressive symptoms: a cross-sectional study among Chinese adolescents

Variables

Total

Girls

 

Boys

Depressive symptoms, n

Depressive symptoms, n

OR (95% CI)

AOR (95% CI)

 

Depressive symptoms, n

OR (95% CI)

AOR (95% CI)

Cigarette smoking

 No

1467

954

1.0

1.0

 

513

1.0

1.0

 Yes

218

58

4.1(3.0-5.6)

2.3 (1.6-3.4)

 

160

1.6(1.4-2.0)

1.2(0.9-1.5)

P for interaction: Cigarette smoking × Gender

<0.001

   

Alcohol consumption

 No

1086

717

1.0

1.0

 

369

1.0

1.0

 Yes

599

295

2.4(2.1-2.8)

2.1 (1.8-2.5)

 

304

1.9(1.6-2.2)

1.7(1.4-2.1)

P for interaction: Alcohol consumption × Gender

0.007

   
  1. Abbreviations: OR, odds ratio by univariate logistic regression. 95% CI, 95% confidence interval. AOR, adjusted odds ratio by multiple logistic regression adjusted for grade, family economic status, parental education level, parental smoking and drinking pattern, communication with parents, number of brothers and sisters, number of good friends, relationship with teachers and classmates, pocket money, academic pressure and time doing homework.
  2. Bold type indicates that the CI does not include the null according to logistic regression analyses.
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