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Table 2 Distribution of studies by study design and gestational age of pregnancies

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

27

Total

207