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. Author manuscript; available in PMC: 2008 Jun 17.
Published in final edited form as: Arch Sex Behav. 2003 Aug;32(4):339–349. doi: 10.1023/a:1024043032111

Table III.

Logistic Regression Analyses Predicting HIV Risk (past year)

Predictor Variables Wald-z p AOR 95% CI
Psychiatric Variables
Substance Use Disorder
  AUD Reference 1.00
  DUD -0.27 ns 0.79 0.15 - 4.33
  MUD 0.38 ns 1.39 0.26 - 7.54
Other Psychiatric Diagnosis
  No Reference 1.00
  Yes 2.43 .05 4.99 1.36 - 18.23
Duration of Substance Use Disorder -0.48 ns 1.00 0.99 - 1.01
Age At First Hospitalization -1.46 ns 0.88 0.74 - 1.05
Number of Previous Admissions -0.32 ns 0.94 0.65 - 1.36
Demographic Variables
Age 1.49 ns 1.15 0.96 - 1.37
Educational Level
  Pre-High School Reference 1.00
  High School -0.02 ns 0.99 0.38 - 2.56
  Post-High School 0.80 ns 1.52 0.55 - 4.21
Marital Status
  Married Reference 1.00
  Single -0.63 ns 0.71 0.25 - 2.04
Living Situation
  Own Home Reference 1.00
  Others’ Home 0.13 ns 1.05 0.46 - 2.42
Occupation Status
  Unemployed Reference 1.00
  Non-professional 0.37 ns 1.20 0.46 - 3.11
  Professional/Government -0.95 ns 0.42 0.07 - 2.49
Substance Use Variables
Cigarette Use
  No Reference 1.00
  Yes -0.03 ns 0.99 0.42 - 2.32
Beedi Use
  No Reference 1.00
  Yes -0.01 ns 1.00 0.43 - 2.29
Chewing Tobacco Use
  No Reference 1.00
  Yes 1.57 ns 1.94 0.85 - 4.44
Betel nut Use
  No Reference 1.00
  Yes -0.08 ns 0.96 0.39 - 2.39
AUDIT 1.18 ns 1.03 0.98 - 1.08
DAST 4.07 .001 1.40 1.19 - 1.65

Note. Wald-z statistics for the regression coefficients are based on the estimated variance-covariance matrix of parameter estimates in the logistic regression model; AOR = Adjusted Odds Ratio; CI = Confidence Interval; ns = non-significant; Adjusted Odds Ratios for categorical variables (diagnosis, dual-diagnosis, school, marital status, living situation, occupation, cigarette use, beedi use, chewing tobacco use, and betel nutuse) are relative to the reference categories for each variable; Adjusted Odds Ratios for continuous variables reflect the increase in risk associated with an increase of 1 in the predictor variable; AUD = alcohol use disorder; DUD = drug use disorder; MUD = multiple substance use disorder.