Bromazepam

Exposed non-exposed studies (cohort)

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

Case-control studies (cohort)

Study Country
Study period
Case Control Sample size Rmk
Bonnot, 2003 France
1976 - 1997
Infants with the studied congenital malformation. Infants with a malformations other than this one studied. -9 / -9 Total number of infants with a congenital malformation is 13703, but the number of cases changes according to the studied malformations. Raw data not sufficient to calculate OR (data for 'control' groups not available).
Kitchin, 2022 Spain
2002 - 2015
Pregnant woman suffering a miscarriage. Pregnant woman randomly selected from the whole cohort among women who were still at risk within follow-up, by risk-set sampling and individually matched to cases. 18070 / 54209 Authors provided 2 exposure definitions: Use in both periods (continuers) and Use only during pregnancy (new users) => use of data for 'Use in both periods (continuers)', to decrease misclassification bais (exposure occurred before outcome).
Sheehy, 2019 Canada
1998 - 2015
Pregnancies ending with spontaneous abortion (pregnancy loss between between the beginning of the sixth week of gestation and the 19th completed week of gestation, excluding planned or induced abortions). Pregnancies ending with live births (5 for each case) randomly selected at the index date and matched with the case pregnancy by gestational age and calendar year. 27149 / 134305

master protocol