Age and method of referral of participants
| Participant | Age (years) | Method of referral | Participant | Age (years) | Method of referral |
| SR1 | 25 | Self-referred | SR9 | 28 | Self-referred |
| SR2 | 33 | Self-referred | NSR3 | 20 | Family planning clinic |
| SR3 | 20 | Self-referred | SR10 | 22 | Self-referred |
| SR4 | 22 | Self-referred | SR11 | 29 | Self-referred |
| SR5 | 21 | Self-referred | SR12 | 40 | Self-referred |
| NSR1 | 25 | GP | SR13 | 22 | Self-referred |
| SR6 | 22 | Self-referred | SR14 | 28 | Self-referred |
| SR7 | 21 | Self-referred | SR15 | 21 | Self-referred |
| NSR2 | 32 | GP | SR16 | 19 | Self-referred |
| SR8 | 19 | Self-referred | SR17 | 21 | Self-referred |
| NSR4 | 36 | GP |
GP, general practitioner; NSR, non-self-referral participant; SR, self-referral participant.