Table 3.
Pregnancy incidence by age and contraception provision.
| # Participants | # Pregnant participants | # Pregnancies | Person-years | Rate | 95% CI | |
|---|---|---|---|---|---|---|
| Age | ||||||
| <18 | 1 | 0 | 0 | 0.2 | 0.00 | (0.00,1604) |
| 18 - 20 | 259 | 22 | 23 | 370.2 | 6.21 | (3.94,9.32) |
| 21 - 30 | 1235 | 90 | 100 | 1810.0 | 5.52 | (4.50,6.72) |
| 31 - 40 | 420 | 19 | 20 | 621.2 | 3.22 | (1.97,4.97) |
| 41 - 50 | 9 | 0 | 0 | 15.1 | 0.00 | (0.00,24.44) |
| Contraception provision | ||||||
| Yes | 1828 | 118 | 128 | 2679.3 | 4.78 | (3.99,5.68) |
| No | 96 | 13 | 15 | 137.5 | 10.91 | (6.11,18.00) |
| Total | 1924 | 131 | 143 | 2816.7 | 5.08 | (4.28,5.98) |
Cutoff date for pregnancy calculations was April 3, 2020.