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Table 2 Rate ratios for appropriate prevention messaging from Poisson models

From: Pre/post evaluation of a pilot prevention with positives training program for healthcare providers in North West Province, Republic of South Africa

   HIV Positive HIV Negative Difference in Difference
Outcome Analysis RR 95% CI p-value RR 95% CI p-value Ratio of RR 95% CI p-value
Summary Unadjusted 0.87 0.82–0.91 <0.001 1 0.94–1.07 0.943 0.86 0.80–0.94 0.001
Adjusted 0.92 0.87–0.97 0.004 1.05 0.98–1.12 0.133 0.88 0.81–0.95 0.002
n = 864          
Sexual activity Unadjusted 0.83 0.70–0.99 0.038 1.33 1.06–1.67 0.014 0.63 0.47–0.83 0.001
Adjusted 0.99 0.82–1.19 0.901 1.52 1.20–1.93 0.001 0.65 0.49–0.87 0.003
n = 721          
Safer sex Unadjusted 0.88 0.79–0.99 0.031 1 0.89–1.12 0.997 0.88 0.76–1.04 0.129
Adjusted 0.92 0.82–1.03 0.159 1.03 0.91–1.16 0.637 0.89 0.76–1.05 0.167
n = 658          
Adherence to ARVs and other meds Unadjusted 0.83 0.73–0.95 0.006       
Adjusted 0.85 0.74–0.98 0.023       
n = 258          
Drug and alcohol Unadjusted 0.99 0.83–1.18 0.927 0.77 0.63–0.96 0.017 1.28 0.98–1.68 0.074
Adjusted 1.13 0.94–1.36 0.185 0.85 0.68–1.06 0.149 1.33 1.01–1.75 0.042
n = 642          
Signs and symptoms of STIs Unadjusted 0.82 0.70–0.95 0.01 0.96 0.80–1.15 0.643 0.85 0.67–1.08 0.178
Adjusted 0.89 0.75–1.05 0.163 1.04 0.86–1.25 0.705 0.86 0.68–1.09 0.209
n = 760          
Pregnancy status and intentions Unadjusted 0.78 0.65–0.93 0.005 1.22 0.97–1.55 0.093 0.63 0.47–0.85 0.002
Adjusted 0.75 0.62–0.90 0.002 1.16 0.91–1.48 0.24 0.65 0.48–0.87 0.004
n = 596          
Condom Demonstration Unadjusted 0.74 0.66–0.83 <0.001 0.89 0.79–1.00 0.053 0.83 0.71–0.98 0.027
Adjusted 0.81 0.72–0.91 0.001 0.95 0.84–1.08 0.437 0.85 0.72–1.01 0.058
n = 774          
  1. RR Rate ratio, CI Confidence interval