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Table 2 Prevalence of psychological distress by self-reported vision difficulty and clinician assessed vision loss

From: Vision loss, vision difficulty and psychological distress in South Africa: results from SANHANES-1

Level of psychological distress
  Low distress (K10 ≤ 19) Mild distress (K10 20–24) Moderate distress (K10 25–29) Very high/Severe distress (K10 ≥ 30) p value (Chi-sq test)
% 95% CI % 95% CI % 95% CI % 95% CI
Total 80.2 78.3–82.0 11.6 10.3–12.9 5 4.2–5.9 3.3 2.6–4.0  
Self-reported myopia          
None 84.4 82.5–86.1 9.7 8.5–11.1 3.5 2.7–4.4 2.4 1.8–3.1 < 0.001
Mild 70 64.6–74.9 17.3 13.6–21.7 8.9 6.2–12.7 3.8 2.4–6.0  
Moderate 59.5 52.9–65.8 21.2 16.6–26.6 12.9 9.2–17.7 6.5 4.2–9.8  
Severe/Extreme/unable 54.2 44.6–63.4 17.6 11.5–26.0 12.1 7.7–18.5 16.1 10.8–23.4  
Self-reported hyperopia
None 84.2 82.2–85.9 9.8 8.6–11.2 3.7 3.0–4.6 2.3 1.8–3.0 < 0.001
Mild 71 66.0–75.6 17.8 14.4–21.7 7 4.8–10.0 4.2 2.5–7.1  
Moderate 59.6 53.1–65.8 19.8 15.6–24.7 12.1 8.4–17.2 8.5 6.0–11.8  
Severe/Extreme/unable 53 44.2–61.6 19.2 14.0–25.6 14.9 9.9–21.9 13 7.9–20.6  
Clinician assessed vision loss
Normal 81.1 79.1–83.0 11.3 10.1–12.6 4.6 3.8–5.5 3 2.4–3.9 < 0.001
Loss of vision 71.9 67.3–76.1 15.9 12.2–20.4 7.7 5.6–10.5 4.5 3.1–6.5