Prevalence of Congenital Anomalies in the Japan Environment and Children's Study
Overview
Authors
Affiliations
Background: The aims of the present report were to estimate the prevalence of congenital anomalies (CAs) among infants in Japan using data from the Japan Environment and Children's Study (JECS) and to evaluate the validity of CA classification within JECS.
Methods: Data on CAs were collected at delivery and at age 1 month from the medical records of 101,825 infants at 15 regional centers. The analyses focused on 61 CAs, selected on the basis of reported associations with environmental exposure. Prevalence per 10,000 pregnancies (including miscarriages, stillbirths, and live births) was stratified according to four reporting patterns (at delivery, at age 1 month, at either, and at both). To evaluate the accuracy of observed CA prevalence, the medical records of 179 cases from a single JECS regional center underwent independent, retrospective re-evaluation.
Results: The prevalence of major CAs in four reporting patterns (at delivery, at age 1 month, at either, and at both) was 2.4, 2.6, 3.5, and 1.4 for myelomeningocele/spina bifida; 4.3, 4.2, 5.3, and 3.2 for cleft palate; 18.1, 17.4, 19.5, and 15.1 for cleft lip with or without cleft palate; 73.4, 100.3, 120.8, and 52.8 for congenital heart disease; and 10.5, 14.1, 15.0, and 9.6 for Down's syndrome, respectively. In the subsample re-evaluation, CA diagnoses were confirmed for 92.7%, 93.3%, 90.5%, and 97.8% of cases in the four reporting patterns (at delivery, at age 1 month, at either, and at both), respectively.
Conclusions: The present report generated reliable data concerning the prevalence of major CAs in JECS.
Tsuchiya M, Tsuchiya S, Momma H, Nagatomi R, Yaegashi N, Arima T Sci Rep. 2025; 15(1):7753.
PMID: 40044680 PMC: 11882968. DOI: 10.1038/s41598-025-88562-8.
Shinohara S, Kojima R, Otawa S, Kushima M, Miyake K, Yui H J Diabetes Metab Disord. 2025; 24(1):61.
PMID: 39902091 PMC: 11787112. DOI: 10.1007/s40200-025-01568-x.
Terada S, Habara T, Terada R, Mitsuhashi T, So R, Yoshioka N Reprod Med Biol. 2025; 24(1):e12623.
PMID: 39850934 PMC: 11755112. DOI: 10.1002/rmb2.12623.
Goto M, Saito S, Scheuerle A, Yasuda S, Houston N, Kumke T Int J Rheum Dis. 2025; 28(1):e70048.
PMID: 39812078 PMC: 11733829. DOI: 10.1111/1756-185X.70048.
Inadera H, Matsumura K, Kasamatsu H, Shimada K, Kitase A, Tsuchida A BMC Public Health. 2024; 24(1):3421.
PMID: 39696235 PMC: 11654371. DOI: 10.1186/s12889-024-20802-4.