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Derivation of sample.
| Variable | N | % | |
|---|---|---|---|
| Conditions required for all analyses (nested) | MACS Cohort total | 7,087 | |
| Entered seronegative | 4,124 / 7,084 | 58.2% | |
| Seroconverted | 712 / 4,124 | 17.3% | |
| Seroconversion interval < 1 year | 535 / 712 | 75.1% | |
| Had SPVL information | 435 / 535 | 81.3% | |
| Had seroconversion interval role information | 374 / 435 | 86.0% | |
| Role distribution of sample | Exclusively insertive (El) | 46 / 374 | 12.3% |
| Role versatile (RV) | 278 / 374 | 74.3% | |
| Exclusively receptive (ER) | 50 / 374 | 13.4% |
