Kaplan-Meier Estimates of 100-Day Continuation of Modern Contraception (n=2,267)
| Method Information Indicators | % (95% CI) |
|---|---|
| MII | |
| <3 questions | 89.3 (87.5, 90.8) |
| All 3 questions | 93.7 (91.7, 95.2) |
| MIIplus | |
| <4 questions | 89.0 (87.3, 90.5) |
| All 4 questions | 94.7 (92.7, 96.1) |
| MIIplus variation | |
| <3 questions of MII | 89.3 (87.5, 90.8) |
| MII | 82.3 (70.3, 89.8) |
| MIIplus | 94.7 (92.7, 96.1) |
Abbreviations: CI, confidence interval; MII, Method Information Index; MIIplus, Method Information Index including the question, “Were you told about the possibility of switching to another method if the method you selected was not suitable?”