Diary result | Questionnaire result | Over-reporting in questionnaire, n (%) | Under-reporting in questionnaire, n (%) | Correlation | |
Mean number of partners in 3 months | 1.30 | 1.23 | 6 (9.8) | 10 (16) | 0.63 |
Proportion of partners ‘regular’ | 69.2 | 63.8 | 0.87 | ||
Proportion of partners ‘new’ | 36.7 | 35.0 | 0.57 | ||
Mean frequency of sex in 3 months | 25.1 | 23.9 | 24 (44) | 19 (35) | 0.76 |
Mean frequency of using condoms | 6.20 | 6.73 | 13 (24) | 16 (30) | 0.76 |