Proportion of pregnant individuals with continuing pregnancies after taking mifepristone at 7 weeks’ gestation or less, and at 7–8 weeks’ gestation, with or without progesterone
| Authors (year) | 7 weeks of pregnancy or less | 7–8 weeks of pregnancy | ||||
| Total pregnancies (n) | Ongoing pregnancies (n) | Percentage ongoing pregnancies (95% CI) (%) | Total pregnancies (n) | Ongoing pregnancies (n) | Percentage ongoing pregnancies (95% CI) (%) | |
| Mifepristone 200 mg + progesterone (any dose) | ||||||
| Delgado & Davenport28 (2012) | 2 | 1 | 2 | 2 | ||
| Garratt & Turner30 (2017) | 1 | 1 | 2 | 1 | ||
| Delgado et al 29 (2018) | 291 | 121 | 88 | 54 | ||
| Creinin et al 31 (2020) | 3 | 2 | 3 | 2 | ||
| Total | 297 | 125 | 42% (37–48%) | 95 | 59 | 62% (52–71%) |
| Mifepristone 200 mg alone | ||||||
| Maria et al 35 (1998)* | 30 | 7 | – | – | ||
| Creinin et al 31 (2020) | 2 | 0 | 4 | 2 | ||
| Total | 32 | 7 | 22% (11–39%) | 4 | 2 | 50% (15–85%) |
CIs are calculated 95% Wilson Score CIs.
*All participants in this study were at 49 days of gestation or less.