Furosemide (versus unexposed)

Study	Country Study period	Population source	Exposure definition	Non-exposure definition	Sample size	Rmk

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
Czeizel, 1999	Hungary 1980 - 1996	Newborn infants (including infant deaths and usual stillborn fetuses) with congenital abnormalities.	Newborn infants (including infant deaths and usual stillborn fetuses) without congenital abnormalities, matched according to gender, birth week and district of parents’ residence.	22865 / 38151