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Table 5 Logistic regression analysis of risk indicators for current alcohol and illicit drug use comorbidity among young people from the Kenyan coast

From: Alcohol and illicit drug use among young people living with HIV compared to their uninfected peers from the Kenyan coast: prevalence and risk indicators

Covariate Whole sample, n = 812 YLWH, n = 406 HIV uninfected young people, n = 406
Univariate analysis
OR (95% CI)
Multivariable analysis
aOR (95% CI)
Univariate analysis
OR (95% CI)
Multivariable analysis
aOR (95% CI)
Univariate analysis
OR (95% CI)
Multivariable analysis
aOR (95% CI)
Sex
 Female Ref Ref Ref Ref Ref Ref
 Male 7.21*** (3.37, 15.43) 9.40*** (4.25, 20.80) 3.40** (1.05, 11.04) 4.29** (1.30, 14.21) 9.67*** (3.39, 27.60) 14.12*** (4.58, 43.53)
Education Overall p = 0.14      
Secondary Ref Ref
Tertiary 1.72* (0.89, 3.33) 1.62 (0.79, 3.31)
Primary 1.43 (0.75, 2.72) 2.66*** (1.31, 5.43)
Nonea 1.00 1.00
Asset index 1.33*** (1.13, 1.57) 1.46*** (1.21, 1.77) 1.47*** (1.19, 1.80) 1.80*** (1.39, 2.33)
Negative life events Overall p = 0.01   Overall p = 0.01   Overall p = 0.03  
 Nonea Ref Ref 1.00 1.00 Ref Ref
 1–5 events 5.13* (0.69, 38.17) 5.98 (0.78, 45.60) Ref Ref 5.68* (0.75, 42.82) 6.52 (0.81, 52.09)
 6+ events 9.70** (1.30, 72.48) 17.33*** (2.23, 134.67) 5.51** (1.51, 20.10) 6.44*** (1.74, 23.83) 10.24** (1.32, 79.32) 17.40*** (2.04, 148.07)
Parent living status Overall p = 0.10     Overall p = 0.01  
 Both alive 2.41* (0.92, 6.28) 3.72** (1.34, 10.30) Ref Ref
 One alive 2.43* (0.89, 6.65) 3.35** (1.16, 9.70) 2.32** (1.19, 4.52) 2.94*** (1.34, 6.41)
 Both deada Ref Ref 1.00 1.00
n of the final model   800   377   393
Variance explained (R2)   19.1%   12.4%   24.6%
  1. * p value< 0.15, ** p value < 0.05, *** p value < 0.01
  2. Only variables with p-value < 0.15 in the univariate and p < 0.05 in the multivariable analysis are presented here
  3. afor these variable categories, no participant had any current alcohol and illicit drug use comorbidity, hence there was perfect prediction of failure in logistic regression analyses denoted by null value of 1.00
  4. OR Odds ratio, aOR Adjusted odds ratio, Ref Reference group