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Table 3 Covariates associated with "between-studies" heterogeneity according to multivariable logistic regression, Injection and non-injection drug users.

From: HIV prevalence among female sex workers, drug users and men who have sex with men in Brazil: A Systematic Review and Meta-analysis

Variable OR (95%CI) AOR (95%CI)
Incarceration    
   Currently incarcerated 2.37 (0.58 - 9.70) --------  
   Non-incarcerated 1.00   
Drug use    
   Injection drug use 5.57 (2.50 - 12.39)** 7.13 (2.52 - 20.20)**
   Non-injection drug use 1.00 1.00  
Brazilian Region    
   South 1.86 (0.57 - 6.08) --------  
   Southeast and Northeast 1.00   
Study Period    
   1991-2001 1.72 (0.32 - 9.30) --------  
   2002-2004 1.00   
Recruitment site    
   Street recruited drug users 2.28 (0.83 - 6.25)* 0.68 (0.24 - 1.91)
   Drug addiction or VCT facilities 1.00 1.00  
  1. Abbreviations: CI - Confidence Interval; OR - Odds Ratio;
  2. AOR - Adjusted Odds Ratio (adjusted for all variables listed in the table)
  3. * p-value = 0.10; **p-value < 0.0001