Table 4

Multivariable log-binomial regression model predicting unplanned pregnancy among HIV-positive and HIV-negative women

VariablesUnivariate analysisMultivariate analysis
OR95% CIP valuesaOR95% CIP values
HIV status and ART use
  HIV negative
  Newly diagnosed1.351.03 to 1.780.0281.431.05 to 1.940.020
  Known HIV+—no ART1.431.08 to 1.920.0131.571.13 to 2.150.006
  Known HIV+—on ART1.030.80 to 1.340.7661.100.82 to 1.470.513
Age category
 35–44
 25–341.140.88 to 1.490.3091.290.95 to 1.750.099
 18–241.641.20 to 2.260.0021.831.23 to 2.740.003
Parity1.070.97 to 1.170.1361.421.25 to 1.600.000
Married/cohabiting
 No
 Yes0.230.19 to 0.290.0000.190.15 to 0.240.000
Used contraceptive in the past 12 months
 No
 Yes0.730.59 to 0.910.0051.941.55 to 2.430.000
Socioeconomic status
 Low
 Low-middle0.860.65 to 1.150.3290.790.58 to 1.080.151
 Middle-high0.950.73 to 1.260.7550.740.54 to 1.000.054
 High1.080.82 to 1.440.5610.840.61 to 1.160.301
Finished high school
 No
 Yes0.920.74 to 1.150.499
Employed
 No
 Yes1.000.81 to 1.220.994
Housing
 Informal
 Formal1.421.17 to 1.730.000
Gravidity1.060.97 to 1.160.201
  • aOR, adjusted OR; ART, antiretroviral therapy.