Hormonal contraception—HIV individual participant data meta-analysis: hazard ratios for sensitivity and subgroup analyses.

a“Time-varying” signifies that the contraceptive variable may vary with time, i.e., vary at each visit for a particular participant. Each HC group is compared to women not using HC.
bAdjusted for region, age, married/living with partner, time-varying >1 sex partner, time-varying condom use.
cData censored at last visit prior to first contraceptive method switch.
dData censored at last visit prior to first reported condom use.
eIncidence measured low versus high (based on median: <3.9 versus ≥3.9 per 100 woman-years) in the no-HC comparison group.
* I2 value 50%–75%; otherwise all I2 values are <50%.
NA, not applicable.
Hormonal contraception—HIV individual participant data meta-analysis: hazard ratios for sensitivity and subgroup analyses.