Joint effect of sitting posture habits and screen viewing distance on screening myopia among primary school students

ZHAO Ruilan; PENG Tao; ZHEN Guoxin; ZHAO Fangfang; LI Li; SONG Qingqing; ZHU Fan; MA Yinghua

doi:10.16835/j.cnki.1000-9817.2025161

Volume 46 Issue 6

Jun. 2025

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Article Navigation > CHINESE JOURNAL OF SCHOOL HEALTH > 2025 > 46(6): 903-907

ZHAO Ruilan, PENG Tao, ZHEN Guoxin, ZHAO Fangfang, LI Li, SONG Qingqing, ZHU Fan, MA Yinghua. Joint effect of sitting posture habits and screen viewing distance on screening myopia among primary school students[J]. CHINESE JOURNAL OF SCHOOL HEALTH, 2025, 46(6): 903-907. doi: 10.16835/j.cnki.1000-9817.2025161

Citation:

ZHAO Ruilan, PENG Tao, ZHEN Guoxin, ZHAO Fangfang, LI Li, SONG Qingqing, ZHU Fan, MA Yinghua. Joint effect of sitting posture habits and screen viewing distance on screening myopia among primary school students[J]. CHINESE JOURNAL OF SCHOOL HEALTH, 2025, 46(6): 903-907. doi: 10.16835/j.cnki.1000-9817.2025161

Citation:

ZHAO Ruilan, PENG Tao, ZHEN Guoxin, ZHAO Fangfang, LI Li, SONG Qingqing, ZHU Fan, MA Yinghua. Joint effect of sitting posture habits and screen viewing distance on screening myopia among primary school students[J]. CHINESE JOURNAL OF SCHOOL HEALTH, 2025, 46(6): 903-907. doi: 10.16835/j.cnki.1000-9817.2025161

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Joint effect of sitting posture habits and screen viewing distance on screening myopia among primary school students

doi: 10.16835/j.cnki.1000-9817.2025161

1.
School Health Department, Shunyi Centre for Disease Control and Prevention, Beijing (101300), China

Received Date: 2025-01-17
Rev Recd Date: 2025-05-06

Available Online: 2025-07-04

Publish Date: 2025-06-25

Abstract

Abstract

Objective To explore the association of screening myopia and sitting posture habits as well as screen viewing distance among primary school students, providing a scientific basis for myopia prevention and intervention among primary school students. Methods From April to June 2024, a convenient sampling method was used to enroll 1 394 fourth-grade students from four primary schools in a district of Beijing for vision examinations and questionnaire surveys. Logistic regression models were employed to analyze the relationship of screening myopia detection and sitting posture habits as well as viewing distance. Results The screening myopia prevalence among primary school students was 63.8%. About 13.1% of students self-reported poor sitting posture, and 47.1% self-reported a viewing distance of ≤20 cm. After adjusting for covariates including age, gender, school, sleep quality, parental myopia status, physical fitness level, daily high-intensity physical activity, weekend outdoor activity time and types of after-school services, Logistic regression analysis showed that students with poor sitting posture were more likely to have screening myopia than those with normal sitting posture (OR=1.73, 95%CI=1.03-2.92); students with a viewing distance of ≤20 cm were more likely to have screening myopia than those with a viewing distance of >20 cm(OR=1.32, 95%CI=1.02-1.71)(P < 0.05). The association between sitting posture and screening myopia was more significant among boys(OR=2.00, 95%CI=1.03-3.88, P < 0.05). A multiplicative interaction was observed between sitting posture and viewing distance. Compared to primary school students with normal posture and a viewing distance of >20 cm, those with poor posture and a viewing distance of >20 cm were more likely to have screening myopia (OR=1.82, 95%CI=1.12-2.96, P < 0.05). Conclusions Both sitting posture habits and screen viewing distance are related to screening myopia in primary school students. Poor sitting posture poses a higher risk than screen distance, and the two factors exhibit an interactive effect on myopia risk.
- Sitting position,
- Fixation, ocular,
- Myopia,
- Regression analysis,
- Students

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References(22)

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