Effect of birth order on stereoacuity in Chinese preschool children: a cross-sectional study.

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.

journal_name

BMJ Open

journal_title

BMJ open

authors

Han S,Zhang X,Li R,Tong H,Zhao X,Wang Y,Hao Q,Huang D,Zhu H,Zhang X,Liu H

doi

10.1136/bmjopen-2019-032833

subject

Has Abstract

pub_date

2020-10-12 00:00:00

pages

e032833

issue

10

issn

2044-6055

pii

bmjopen-2019-032833

journal_volume

10

pub_type

杂志文章

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