Table 2.
Age group, years | PI type | Total exposure, days | Relevant exposure, WY | Number of pregnancies | PI | 95% CI |
---|---|---|---|---|---|---|
Overall | Adjusted PI | 299,752 | 760.35 | 3 | 0.39 | 0.08–1.15 |
18–35 | 197,503 | 500.36 | 3 | 0.60 | 0.12–1.75 | |
36–50 | 102,249 | 259.99 | 0 | 0.00 | 0.00–1.42 | |
Overall | Unadjusted PI | 299,752 | 796.34 | 5 | 0.63 | 0.20–1.47 |
18–35 | 197,503 | 524.38 | 4 | 0.76 | 0.21–1.95 | |
36–50 | 102,249 | 271.97 | 1 | 0.37 | 0.01–2.05 |
Abbreviations: PI, Pearl Index; WY, woman-year.