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Table 5 Multivariate analysis of factors associated with HIV positivity among women in three districts in Karnataka, 2005-2007

From: Heterogeneity of the HIV epidemic in the general population of Karnataka state, south India

Characteristic Prevalence % (95% CI) Crude OR (95% CI) N=6816 Adjusted OR* (95% CI) N=6812 P-value
Age     
15-19 years 0.09 (0.0-0.26) 1.00 (Ref) 1.00 (Ref)  
20-24 years 0.76 (0.0-1.52) 8.71 (0.94-81.14) 5.85 (0.64-53.93) 0.118
25-29 years 1.63 (0.80-2.46) 18.85 (2.38-149.19) 11.22 (1.42-88.74) 0.022
30-34 years 2.63 (1.08-4.18) 30.75 (3.98-237.46) 13.13 (1.67-103.19) 0.015
35-39 years 2.07 (0.73-3.40) 24.03 (2.97-194.27) 11.33 (1.32-96.83) 0.027
40-44 years 0.19 (0.0-0.56) 2.16 (0.13-35.71) 0.82 (0.05-13.53) 0.889
45-49 years 0.34 (0.0-0.77) 3.88 (0.36-41.40) 1.44 (0.13-16.12) 0.767
Marital Status     
Others 0.67 (0.38-0.96) 1.00 (Ref) 1.00 (Ref)  
Marriage dissolved 7.20 (4.33-10.80) 11.58 (6.02-22.26) 10.98 (5.35-22.57) <0.0001
Number of sexual partners
One 1.08 (0.75-1.40) 1.00 (Ref) 1.00 (Ref)  
More than one 9.72 (0.83-18.62) 10.19 (3.66-28.42) 4.61 (1.26-16.91) 0.022
Condom use     
Never used condom 1.06 (0.74-1.38) 1.00 (Ref) 1.00 (Ref)  
Ever used condom 2.81 (0.49-5.12) 2.70 (1.11-6.54) 3.32 (1.38-7.99) 0.008
Religion     
Non-Muslim 1.27 (0.88-1.65) 1.00 (Ref) 1.00 (Ref)  
Muslim 0.28 (0.0-0.60) 0.22 (0.07-0.73) 0.27 (0.08-0.87) 0.029
  1. %: Weighted percentages, 95%CI: 95% Confidence Interval, OR: Odds Ratio, Ref: Reference group
  2. *Each variable is adjusted for district, place of residence (rural vs urban) and all the other variables shown in the table