Nationwide Cohort Study

Cross-source consensus on Nationwide Cohort Study from 1 sources and 5 claims.

1 sources · 5 claims

Other

The study uses the South Korean NHIS database, which covers more than 50 million people. — Abdominopelvic computed tomography during pregnancy and the risk of congenital malformations: protocol for a nationwide population-based cohort study in South Korea
The cohort includes all live births in South Korea from January 1, 2011 through December 31, 2023. — Abdominopelvic computed tomography during pregnancy and the risk of congenital malformations: protocol for a nationwide population-based cohort study in South Korea
Cohort entry starts at pregnancy onset and follow-up ends at malformation diagnosis, childhood death, or one year after birth, whichever occurs first. — Abdominopelvic computed tomography during pregnancy and the risk of congenital malformations: protocol for a nationwide population-based cohort study in South Korea
Mothers and children are linked using a shared family insurance identification number. — Abdominopelvic computed tomography during pregnancy and the risk of congenital malformations: protocol for a nationwide population-based cohort study in South Korea
Gestational age at delivery is available for about 80% of pregnancies from a restricted NHIS variable. — Abdominopelvic computed tomography during pregnancy and the risk of congenital malformations: protocol for a nationwide population-based cohort study in South Korea