Factors associated with vaginal PSA detection and with discordance (between PSA test result and self-report of sexual activity), progestin study, Lilongwe, Malawi
| PSA detected | Discordance | |||
| Adjusted PR* | 95% CI | Adjusted PR* | 95% CI | |
| Self-reported condomless last sex in last 48 hours | 2.46 | 1.7 to 3.57 | 0.77 | 0.57 to 1.05 |
| Last coitus within 48 hours | 4.45† | 2.88 to 6.88 | 0.55 | 0.14 to 2.10 |
| HIV-positive (vs HIV-negative) | 0.59 | 0.09 to 0.38 | 1.74 | 1.19 to 2.54 |
| Younger age (per decrease 1 year) | 1.04 | 1.00 to 1.08 | ‡ | |
| Parity (per increase of 1) | 0.87 | 0.75 to 1.01 | 0.98 | 0.91 to 1.07 |
| Married (vs not married) | 1.26 | 0.71 to 2.21 | 0.94 | 0.72 to 1.24 |
| Did not complete primary school education (vs completed or more than primary) | 0.93 | 0.57 to 1.49 | 1.42 | 1.12 to 1.78 |
Bold values are statiscally significant.
*All models adjusted for study arm and pre-randomisation vs post-randomisation visits.
†Additionally adjusted for age.
‡Non-estimable due to small sample size.
95% CI, 95% Confidence Interval; PR, prevalence ratio; PSA, prostate-specific antigen.