Effect of birth order on stereoacuity in Chinese preschool children: a cross-sectional study.
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ABSTRACT: Objective
This study aimed to investigate the relationship between birth order and stereoacuity among Chinese children aged 60-72 months.Design
Cross-sectional.Participants
1342 children with complete data on the questionnaire, stereoacuity and refraction were included.Results
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.Conclusion
Later-borns had poorer stereoacuity than first-borns.
SUBMITTER: Han S
PROVIDER: S-EPMC7552866 | biostudies-literature | 2020 Oct
REPOSITORIES: biostudies-literature
Publications
Effect of birth order on stereoacuity in Chinese preschool children: a cross-sectional study.
Han Shu S Zhang Xiaohan X Li Rui R Tong Haohai H Zhao Xiaoyan X Wang Yue Y Hao Qingfeng Q Huang Dan D Zhu Hui H Zhang Xiaojun X Liu Hu H
BMJ open 20201012 10
<h4>Objective</h4>This study aimed to investigate the relationship between birth order and stereoacuity among Chinese children aged 60-72 months.<h4>Design</h4>Cross-sectional.<h4>Participants</h4>1342 children with complete data on the questionnaire, stereoacuity and refraction were included.<h4>Results</h4>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 correlat ...[more]
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