Prevalence of age-related cataract according to the increasing number of MetS components by gender.

<p>The error bars represent the upper 95% confidence intervals. All <i>P</i> for trend were < 0.0001.</p

Prevalence of age-related cataract according to the absence or presence of MetS components by gender.

<p>The error bars represent the upper 95% confidence intervals (*<i>P</i><0.05, **<i>P</i><0.0001).</p

Characteristics of the participants according to the presence or absence of age-related cataract by gender.

<p>Data are presented as the means±SE or % (SE).</p

Characteristics of the participants according to the presence or absence of metabolic syndrome by gender.

<p>Data are presented as the means±SE or % (SE).</p

Prevalence of age-related cataract according to gender: by age group (A) and by the subtype of cataract (B). The error bars represent the upper 95% confidence intervals.

<p>Prevalence of age-related cataract according to gender: by age group (A) and by the subtype of cataract (B). The error bars represent the upper 95% confidence intervals.</p

Association of metabolic syndrome and its components with age-related cataract by gender.

<p>Data are presented as the odds ratio (95% confidence interval).Abbreviation: MetS, Metabolic syndrome; HDL, high density lipoprotein cholesterol.</p><p>Model 1: adjusted by age and survey year; model 2: adjusted by socioeconomic and lifestyle-related characteristics including income, education, residential area, smoking status, drinking alcohol, exercise, occupation (farmer or fisher), family history of eye disease, and sun exposure.</p

Comparison of outcomes between intervention and control group.

<p>S.D.: Standard deviation.</p><p>Completion: completion of all appropriate second cancer screening in the last 2 years (for details, please see text).</p><p>P-values from t-tests for continuous variables or χ² tests for categorical variables.</p

Demographic and clinical characteristics of study participants at baseline.

<p>Values in the table are number (percentage) unless otherwise indicated.</p><p>S.D.: Standard deviation; KRW: Korean Won.</p><p>P-values from t-tests for continuous variables or χ² tests for categorical variables.</p

Flowchart of study participants.

<p>Flowchart of study participants.</p

Process evaluation of study intervention.

<p>P-values from χ² tests or Fisher's exact tests when indicated.</p