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Table 3 Logistic regression investigating the association of sexual risk behaviours for Phase 1 and Phase 2

From: Effectiveness of an “Exclusive Intervention Strategy” to increase medical male circumcision uptake among men aged 25–49 years in South Africa

  Relationship Status in the last 12 monthsa Age of last sexual partnerb Used a condom the last sex actc Report of any STIs in the past 6 monthsd
No partner or one steady/casual partner at any given time > One partner at some given time (1) About same or >  5 years older > 5 years younger (1) Yes No (1) Had an STI in the past 6 months No STI in the past 6 months (1)
Phase 1 (23 Jun −30 Sep 2014) N = 1597 1136 (71.1) 459 (28.7) 1159 (72.6) 393 (24.6) 789 (49.4) 763 (47.8) 1531 (95.9) 45 (2.8)
Phase 2 (22 Jun −30 Sep 2015) N = 1216 781 (64.2) 433 (35.6) 824 (67.8) 331 (27.2) 550 (45.2) 606 (49.8) 1092 (89.8) 35 (2.9)
Unadjusted OR (95% CI) Phase 2 to Phase 1, p-value 1.37 (1.17;1.61), p < 0.001 1.18 (1.00;1.41), p = 0.05 1.14 (0.98;1.33), p = 0.09 1.09 (0.70;1.71), p = 0.71
Adjusted for agee OR (95% CI) Phase 2 to Phase 1, p-value 1.39 (1.18;1.63), p < 0.001 1.02 (0.85;1.24), p = 0.81 1.06 (0.91;1.25), p = 0.42 1.09 (0.69;1.71), p = 0.71
  1. atwo missing relationship status in each phase
  2. b42 not sexually active in the past 12 months in Phase 1, 56 not sexually active in the past 12 and 5 missing in Phase 2
  3. c42 not sexually active in the past 12 months, 2 did not know partner’s age and 1 missing in Phase 1. 56 not sexually active in the past 12 months in Phase 2, 2 did not know, I, 4 missing in Phase 2
  4. d110 excluded in the analysis because of missing data (21 Phase 1, 89 Phase 2)
  5. eAdjusted for age in four categories; 18–20 years, 21–24 years, 25–30 years, 31–49 years