Study | Country Study period |
Population source | Exposure definition | Non-exposure definition | Sample size | Rmk |
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1 study, not fulfilled eligibility criteria, were excluded. See excluded tab for the list of these studies and reason of exclusion.
Study | Country Study period |
Case | Control | Sample size | Rmk |
---|---|---|---|---|---|
Ishikawa, 2024 |
Japan 2005 - 2022 |
Women whose pregnancies ended in a miscarriage that occurred between the beginning of the fourth and 22nd weeks of gestation. | Women randomly selected from the entire cohort of pregnancies by risk-set sampling with replacement and were individu- ally matched to the cases (3:1). | 44118 / 132317 |