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. 2006 Jul 19;82(5):397–402. doi: 10.1136/sti.2006.019992

Table 2 Mean number of clients, coital acts, and unprotected coital acts (SD), by partner type and study visit, and percentage of coital acts protected by male and female condoms in the last 7 days, by study visit.

Covariates Study visit
O1 O2 O3 O1–O3 O4 O5 O6 O7 O4–O7 p Value
No No No No No N No No No
Number of subjects 196 185 191 196 185 186 179 184 193
Number of clients in last 7 days
 Casual 4.9 (5.61) 4.5 (4.61) 3.3 (4.08) 3.5 (4.22) 2.7 (2.71) 2.4 (2.83) 2.5 (3.09) 0.0009*
 Regular 1.9 (2.34) 1.6 (1.98) 1.2 (1.2) 1.3 (1.31) 1.1 (1.2) 1.1 (1.18) 1.3 (1.41) <.0001*
 Boyfriend 0.9 (0.81) 0.8 (0.69) 0.7 (0.59) 0.7 (0.55) 0.7 (0.57) 0.7 (0.56) 0.7 (0.56) 0.109*
Number of coital acts 14.2 (0.93) 15.0 (1.00) 10.7 (0.66) 13.3 (0.51) 11.3 (0.6) 10.2 (0.59) 9.9 (0.56) 9.0 (0.63) 10.1 (0.31) <.0001†
 Casual 8.7 (0.77) 8.2 (0.68) 6.3 (0.53) 7.7 (0.39) 6.6 (0.54) 5.5 (0.45) 5.1 (0.44) 5.0 (0.45) 5.6 (0.24) <.0001†
 Regular 4.9 (0.32) 4.9 (0.40) 3.5 (0.23) 4.5 (0.19) 3.5 (0.22) 3.3 (0.22) 3.3 (0.19) 3.3 (0.25) 3.4 (0.11) <.0001†
 Boyfriend 3.7 (0.26) 4.4 (0.29) 3.8 (0.25) 4.0 (0.15) 3.4 (0.21) 3.9 (0.23) 4.1 (0.25) 3.7 (0.30) 3.8 (0.12) 0.217†
Number of unprotected coital acts 1.7 (0.23) 1.7 (0.24) 1.5 (0.20) 1.7 (0.13) 1.1 (0.17) 1.4 (0.20) 1.6 (0.24) 1.3 (0.21) 1.4 (0.10) 0.015†
 Casual 0.4 (0.18) 0.1 (0.04) 0.0 (0.01) 0.2 (0.06) 0.0 (0.00) 0.0 (0.02) 0.0 (0.02) 0.0 (0.0) 0.0 (0.1) 0.0003†
 Regular 0.3 (0.08) 0.2 (0.09) 0.2 (0.08) 0.0 (0.00) 0.0 (0.00) 0.0 (0.00) 0.0 (0.02) 0.0 (0.03) 0.0 (0.01) <.0001†
 Boyfriend 1.7 (0.19) 2.1 (0.26) 2.0 (0.26) 2.0 (0.26) 1.5 (0.23) 2.0 (0.26) 2.1 (0.30) 1.9 (0.29) 1.9 (0.13) 0.260†
% All coital acts protected by male condoms 84.8 84.5 83.6 84.3 55.6 57.2 56.7 56.6 56.5 <.0001†
% All coital acts protected by female condoms 0.6 0.8 0.0 0.5 34.9 29.1 27.4 25.7 29.4 <.0001†

*p Value for the difference across visits.

†p Value for the difference between the average of visits O1–O3 and the average of visits O4–O7.