Effect of birth order on stereoacuity in Chinese preschool children: a cross-sectional study.
cross_sectional · Level IV
Where this comes from
- Record sourced from PubMed, PMID 33046460.
- Also identified by DOI 10.1136/bmjopen-2019-032833 and PMC identifier 7552866.
- Licence recorded as CC BY-NC.
- Because redistribution is not established, this page shows the abstract only. Follow the links below for the full text.
Abstract
This study aimed to investigate the relationship between birth order and stereoacuity among Chinese children aged 60-72 months. Cross-sectional. 1342 children with complete data on the questionnaire, stereoacuity and refraction were included. The mean stereoacuity was 53.2±1.7, 56.9±1.9 and 60.9±1.5 s of arc in the first-born group, second-born group and third-born group, respectively. Lower birth order was significantly correlated with better stereoacuity (p=0.036). Third-borns (OR=3.02, p=0.027) were at higher risk of having subnormal stereoacuity compared with first-borns in the multivariate analysis. Later-borns had poorer stereoacuity than first-borns.
Medical subject headings
- Birth Order
- Vision Tests