Changes of axial length in primary and secondary school students in Yunnan and associated factors

XIAO Jie; SU Meihui; LI Peiqian; HUANG Dafeng; LI Xixi; MA Zixue; LUO Xiao; CHEN Maosen; HUANG Ying

doi:10.16835/j.cnki.1000-9817.2024024

Volume 45 Issue 1

Jan. 2024

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Article Navigation > CHINESE JOURNAL OF SCHOOL HEALTH > 2024 > 45(1): 133-137

XIAO Jie, SU Meihui, LI Peiqian, HUANG Dafeng, LI Xixi, MA Zixue, LUO Xiao, CHEN Maosen, HUANG Ying. Changes of axial length in primary and secondary school students in Yunnan and associated factors[J]. CHINESE JOURNAL OF SCHOOL HEALTH, 2024, 45(1): 133-137. doi: 10.16835/j.cnki.1000-9817.2024024

Citation:

XIAO Jie, SU Meihui, LI Peiqian, HUANG Dafeng, LI Xixi, MA Zixue, LUO Xiao, CHEN Maosen, HUANG Ying. Changes of axial length in primary and secondary school students in Yunnan and associated factors[J]. CHINESE JOURNAL OF SCHOOL HEALTH, 2024, 45(1): 133-137. doi: 10.16835/j.cnki.1000-9817.2024024

Citation:

XIAO Jie, SU Meihui, LI Peiqian, HUANG Dafeng, LI Xixi, MA Zixue, LUO Xiao, CHEN Maosen, HUANG Ying. Changes of axial length in primary and secondary school students in Yunnan and associated factors[J]. CHINESE JOURNAL OF SCHOOL HEALTH, 2024, 45(1): 133-137. doi: 10.16835/j.cnki.1000-9817.2024024

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Changes of axial length in primary and secondary school students in Yunnan and associated factors

doi: 10.16835/j.cnki.1000-9817.2024024

1.
School of Public Health, Kunming Medical University, Kinming(650500), Yunnan Province, China

Received Date: 2023-07-31
Rev Recd Date: 2023-12-20

Available Online: 2024-02-01

Publish Date: 2024-01-25

Abstract

Abstract

Objective To explore the pattern of change of axial length/curvatrue radius ratio (AL/CR) and associated factors in primary and secondary school students in Yunnan, so as to provide scientific basis and prospective guidance for early myopia intervention and control. Methods A total of 685 students from grades 2 to 3 and grade 7 in 2 cities/counties in Yunnan Province were selected by multi-stage stratified random cluster sampling method in 2020. All the participants were followed up twice with questionnaire of myopia related factors, uncorrected distance visual acuity, and refractive parameter measurement from October, 2021 and March, 2023, respectivelty. The distribution and change of AL/CR in different classes and groups were analyzed, and the influencing factos of AL/CR cumulative progression were explored using generalized linear model. Results AL/CR ratio in primary school students was (2.95±0.09) at baseline, increased to (2.99±0.11) at the first follow-up and (3.04±0.12) at the second follow-up. AL/CR ratio in middle school students(3.08±0.13) at baseline, increased to (3.12±0.15) at the first follow-up and (3.15±0.14) at the second follow-up. The generalized linear model showed that after controlling for environmental factors, ethnicity (β=-0.017), cumulative progression of the SE (β=-0.027) influenced the changes of AL/CR ratio among the primary school students, whereas the changes of AL/CR ratio were associated with baseline AL (β=-0.005), baseline corneal curvatrue radius (β=0.032) and cumulative progression of SE(β=-0.035) among middle school students (P＜0.05). Conclusions The AL/CR ratio of primary and secondary school students in Yunnan can be used to judge different refractive status types, but its variation is not only related to SE progression, but also affected by different ethnic groups and baseline ocular biological parameters. so the value of AL/CR application in assessing the progression of myopia needs to be further confirmed.
- Ocular axial length,
- Corneal curvature radius,
- Factor analysis, statistical,
- Students

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References(26)

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