Table 3.
Success rate (%) by week of gestation of buccal misoprostol-mifepristone abortions
| Week | N | All pregnancies |
N | Singleton pregnancies |
|---|---|---|---|---|
| All weeks | 1,349 | 98.3% | 1,330 | 98.4% |
| Weeks grouped in days beginning in multiples of 7 | ||||
| Week 4 (days 28–34) | 149 | 99.3% | 145 | 99.3% |
| Week 5 (days 35–41) | 342 | 98.8% | 342 | 98.8% |
| Week 6 (days 42–48) | 467 | 98.1% | 458 | 98.3% |
| Week 7 (days 49–55) | 342 | 98.3% | 337 | 98.5% |
| Week 8 (days 56–59) | 46 | 95.7% | 45 | 95.6% |
| p-value for linear trend in weeks in logistic regression | ||||
| Univariate | 0.346 | 0.474 | ||
| Multivariate | 0.254 | 0.380 | ||
Notes:
1
The multivariate model includes the woman’s age and buccal caseload/site as well as gestation in weeks.
2
Weeks with three or fewer cases are not shown; therefore, the sum of the number of cases grouped by weeks does not add up to the total number of cases. However, all cases are included in the logistic regression analyses used to assess the p-value for a linear trend in weeks.