Baseline data of sub-study participants (HIV-negative at enrolment) expressed as numbers (%) or mean values (SD]
| All participants with HIV-negative status at baseline | Participants with follow-up | |||||||
|---|---|---|---|---|---|---|---|---|
| IPC group (N=878) | IUD group (N=874) | IPC group (N=656) | IUD group (N=634) | |||||
| Characteristic | n (%) or mean [SD] | N | n (%) or mean [SD] | N | n (%) or mean [SD] | N | n (%) or mean [SD] | N |
| Age (years) | 25.7 [6.2] | 873 | 26.0 [6.3] | 867 | 26.0 [6.3] | 655 | 26.0 [6.3] | 631 |
| Weight (kg) | 69.9 [16.3] | 860 | 71.2 [18.2] | 853 | 70.3 [16.2] | 644 | 71.9 [18.2] | 615 |
| Previous miscarriage | 76 (8.7) | 878 | 85 (9.7) | 874 | 66 (10.1) | 656 | 68 (10.7) | 634 |
| Previous caesarean section | 98 (11.2) | 878 | 112 (12.8) | 874 | 72 (11.0) | 656 | 76 (12.0) | 634 |
| Previous pelvic sepsis* | 162 (18.5) | 878 | 170 (19.5) | 874 | 120 (18.3) | 656 | 170 (19.5) | 634 |
| Hypertension | 4 (0.5) | 878 | 5 (0.6) | 874 | 2 (0.3) | 656 | 3 (0.5) | 634 |
| Diabetes mellitus | 1 (0.1) | 878 | 3 (0.3) | 874 | 1 (0.1) | 656 | 3 (0.5) | 634 |
| Previous contraception use | ||||||||
| IPC | 565 (71.7) | 788 | 562 (71.4) | 787 | 438 (75) | 586 | 425 (75) | 566 |
| OC | 48 (5.8) | 830 | 64 (7.7) | 827 | 32 (5.2) | 616 | 44 (7.4) | 598 |
| IUD | 1 (0.1) | 830 | 1 (0.1) | 827 | 1 (0.1) | 616 | 1 (0.1) | 598 |
*South Africa implements the World Health Organization Primary Care model whereby women with certain signs and symptoms are treated ‘syndromically’ for assumed pelvic infection. This may result in over-diagnosis.
IPC, injectable progestogen contraception; IUD, intrauterine device; OC, oral contraception; SD, standard deviation.