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Table 2 Intervention Effects on Proportions of Respondents with Correct Knowledge of Risk Reduction through Condom Use

From: The effect of HIV educational interventions on HIV-related knowledge, condom use, and HIV incidence in sub-Saharan Africa: a systematic review and meta-analysis

Study (Ref, Year) Study Country Int Type Sample Size (N) P Value Typea Proportion with Correct Answer to Risk Reduction Question (N) (unless otherwise stated)
Total int bsl cont bsl int fu cont fu int bsl cont bsl P value int fu cont fu P value
Using condoms during sexual intercourse can reduce the risk of HIV transmission (True)
[35] 2013 Nigeria CE 60 60   60   NA 41   NR 42   NR
[26] 1994 South Africa CE 567 231 336 206 276 I 74 101 0.617 92 75 0.001
[36] 2013 South Africa Comp / game 253 195   195   P 156   0.5 157   
[27] 1995 Zimbabwe Ed 285 141 144 141 144 I 112 82 NR 113 64 < 0.001
[37] 2012 South Africa Ed 130 130   130   NA 52   NR 72   NR
[28] 2006 Zimbabwe Ed 869    251 618 I     123 229 < 0.001
[13] 2006 Nigeria MM 6000 6000   NR   NA 86.2% 93.2% NR 89.1% 95% NR
[25] 2014 Nigeria PE 400 200 200 195 192 P 139 146 0.0001 169 145 0.66
[24] 2007 Nigeria PE / drama 1029 591 438 588 430 P 290 244 < 0.001 443 250 NR
[29] 2016 Mozambique Video 915 NR NR 462 453 I NR NR NR 425 362 < 0.001
[38] 1999 Nigeria Video / scenario 450 233 217 223 210 NR NR NR NR 215 132 NR
  1. Bsl baseline, CE Community Education, Comp Computer-based intervention, Cont Control, Drama drama-based intervention, Ed Educational / informational, Fu Follow-up, MM Mass Media, Int Intervention, NR Not reported, PE Peer education, Scenario scenario-based/ role-play based
  2. a P value type I = Int. vs. control, P = Pre- vs. Post-test. Where two p values are available, Int. vs. cont p values: 1st p value = Int, 2nd = Control. Pre-Post p values: 1st p value = pre-test, 2nd = post-test