% Agreement Kappa statistic (SE) Sensitivity (95% CI) Specificity (95% CI) Area under ROC* curve (95% CI)
Method recommended (n=170)
Pills 47 -0.04 (0.06) 48 (39, 56) 46 (27, 65) 0.5 (0.4, 0.6)
Condoms 44 -0.09 (0.06) 43 (28, 60) 44 (35, 52) 0.4 (0.4, 0.5)
Questions asked during consultation (n=170)
Age 44 -0.14 (0.06) 47 (38, 57) 31 (17, 52) 0.4 (0.3, 0.5)
Number of children 42 -0.02 (0.05) 39 (31, 47) 57 (39, 73) 0.5 (0.4, 0.6)
STI status 62 0.08 (0.08) 29 (18, 43) 78 (69, 86) 0.5 (0.5, 0.6)
Last menstrual period 67 0.00 (0.08) 18 (9, 34) 82 (74, 88) 0.5 (0.4, 0.6)
Partner status 56 0.07 (0.07) 34 (24, 46) 73 (63, 81) 0.5 (0.5, 0.6)
Asked method preference 57 0.2 (0.07) 71 (59, 81) 45 (34, 56) 0.6 (0.5, 0.7)
Assessments (n=170)
Weight 50 0.02 (0.06) 54 (31, 75) 54 (43, 65) 0.5 (0.4, 0.7)
Counseling (n=137)
What to do if pill is not taken in time/ forgotten 48 0.04 (0.07) 63 (44, 79) 42 (30, 55) 0.5 (0.4, 0.6)
Warn of side effects that may occur 53 0.07 (0.08) 72 (56, 84) 36 (23, 51) 0.5 (0.5, 0.6)
Should return to clinic if side effects continue 55 0.04 (0.08) 35 (21, 52) 70 (55, 81) 0.5 (0.4, 0.6)
Method does not protect against sexually transmitted infections 66 0.10 (0.08) 28 (14, 48) 81 (69, 90) 0.5 (0.5, 0.6)