Study | Country Study period |
Population source | Exposure definition | Non-exposure definition | Sample size | Rmk |
---|---|---|---|---|---|---|
Choi a, 2023 |
South Korea 2011 - 2020 |
All pregnancies (in women aged 19-44 years) resulting in live births during the study period. | Pregnant women with one or more prescriptions for Esomeprazole during the first trimester (defined as the start of pregnancy to the 90th day of gestation). |
unexposed, sick
Pregnant women with no filled Proton Pump Inhibitor prescriptions from 90 days before pregnancy through the end of the first trimester (with a propensity-score, made by stratification notably concerning the indications => unexposed sick). |
12516 / 2655676 | In South Korea, 7 PPIs (omeprazole, esomeprazole, lansoprazole, dexlansoprazole, pantoprazole, rabeprazole, and ilaprazole) are available only with a prescription, and no over-the-counter PPIs are available. |
Choi b, 2023 |
South Korea 2008 - 2019 |
All pregnancies in women < 44 years old resulting in live births during the study period. | Pregnant women that filled a prescription for Esomeprazole between the start of pregnancy and the 245th day of gestation. |
unexposed, sick
Pregnant women without exposure to proton pump inhibitors (PPIs) from 90 days before pregnancy to the delivery date. |
12868 / 2121323 | Unexposed group adjusted with propensity-score, made by stratification, notably concerning the indications => considered as unexposed sick (mathematical deformation of total population). In South Korea, PPIs only available with a prescription. |
Cluver, 2018 |
South Africa 2016 - 2017 |
Pregnant women with singleton pregnancies diagnosed with preterm preeclampsia between 26 and 31 weeks. | Women with early onset pre-eclampsia between 26 and 31 weeks exposed with a 40 mg daily dose of esomeprazole. |
unexposed, sick
Women with early onset pre-eclampsia between 26 and 31 weeks exposed to placebo. |
59 / 60 | |
Pasternak, 2010 |
Denmark 1996 - 2008 |
A cohort of all live-born infants in Denmark for the study period. | Infants born to women who were exposed to esomeprazole (any filling of esomeprazole prescription at any time during the period from 4 weeks before conception through the end of the first trimester) (This is a subgroup of exposure among the whole exposed group considered in the study). |
unexposed (general population or NOS)
Infants born to women not exposed to PPIs (all the women who were not exposed at any time during their pregnancy). |
668 / 832031 |
Study | Country Study period |
Case | Control | Sample size | Rmk |
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