From: Glancing at the past and course-setting for the future: lessons from the last decade of research on medication abortion in high-income countries
Categorization
Number of studies
Study design
Cohort
101
Cross-sectional/Observational
48
Randomized Controlled Trial
30
Qualitative
19
Case–control
5
Mixed methods
4
Trimester
First
137
Second
27
Third
16
Not stated
Total
207