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Correlations02:20

Correlations

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Correlation means that there is a relationship between two or more variables (such as ice cream consumption and crime), but this relationship does not necessarily imply cause and effect. When two variables are correlated, it simply means that as one variable changes, so does the other. We can measure correlation by calculating a statistic known as a correlation coefficient. A correlation coefficient is a number from -1 to +1 that indicates the strength and direction of the relationship between...
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  11. Correlation Analysis Of Myopia And Dietary Factors Among Primary And Secondary School Students In Shenyang, China

Correlation analysis of myopia and dietary factors among primary and secondary school students in Shenyang, China

Dan Zhang1,2, Ming Wu3, Xiaodan Yi1

  • 1Shenyang Center for Disease Control and Prevention, Shenyang, 110623, China.

Scientific Reports
|September 4, 2024

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View abstract on PubMed

Summary
This summary is machine-generated.

Student myopia risk is linked to diet. Fruit intake may protect boys, while sugary drinks increase myopia risk in girls. Further research is needed to confirm these findings.

Area of Science:

  • Ophthalmology
  • Nutritional Science
  • Public Health

Background:

  • Global myopia prevalence is increasing, particularly among students.
  • Dietary factors are suspected contributors to myopia, but evidence is inconsistent.
  • Understanding diet-myopia links is crucial for student eye health interventions.

Purpose of the Study:

  • To investigate the association between dietary habits and myopia in primary and secondary school students.
  • To identify specific dietary factors influencing myopia risk while controlling for confounders.
  • To provide evidence-based recommendations for myopia prevention through diet.

Main Methods:

  • A multi-stage stratified cluster sampling survey of 10,619 students in Shenyang.
  • Visual examinations and questionnaires administered to 6,974 students.
Keywords:
Dietary factorsMyopiaPrevalenceRisk factors

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  • Logistic regression and propensity score matching for robust statistical analysis.

    • Main Results:

    • Overall myopia prevalence was 59.1%, predominantly mild myopia.
    • Daily fruit consumption (≥2 times/day) was associated with a 31% lower myopia risk (OR 0.69).
    • This protective effect was significant in males (OR 0.59), while sugary beverage intake increased myopia risk in females (OR 1.8).

    Conclusions:

    • Dietary habits significantly correlate with myopia development in students.
    • Fruit intake may offer a protective effect against myopia, especially in males.
    • High consumption of sugary beverages is a risk factor for myopia, particularly in females.
    Students