Table 7.
Logistic regression analysis of bilateral visual impairment based on best-corrected visual acuity (BCVA) and presenting visual acuity (PVA) in type 2 diabetes patients in the Dongguan Eye Study.
| Variable | Bilateral visual impairment based on BCVA (<20/63) | Bilateral visual impairment based on PVA (<20/63) | ||
|---|---|---|---|---|
| OR (95% CI) | P | OR (95% CI) | P | |
| Sex (Male vs. Female) | 1.27 (0.54–2.99) | 0.591 | 0.84 (0.48–1.45) | 0.521 |
| Age (per 10 year) | 3.73 (2.39–5.83) | <0.001 | 2.67 (2.03–3.51) | <0.001 |
| Education* | 3.21 (1.63–6.29) | 0.001 | 2.00 (1.35–2.97) | 0.001 |
| Duration of diabetes (per year) | 1.14 (1.04–1.25) | 0.006 | 1.09 (1.02–1.16) | 0.011 |
| BMI (per 1 kg/m2) | 0.86 (0.77–0.95) | 0.005 | 0.92 (0.86–0.98) | 0.009 |
| Hb1AC (per 1%) | 1.01 (0.79–1.30) | 0.928 | 0.91 (0.78–1.08) | 0.286 |
| SBP (per 10 mmHg) | 1.05 (0.85–1.30) | 0.657 | 0.98 (0.86–1.13) | 0.801 |
| DBP (per 10 mmHg) | 1.23 (0.80–1.88) | 0.347 | 1.01 (0.77–1.32) | 0.951 |
| BUN (per 1 mmol/L) | 0.90 (0.72–1.12) | 0.325 | 0.96 (0.84–1.10) | 0.537 |
*Education was classified as high school or above, junior middle school, primary school and illiteracy; and was assessed as a continuous variable in the regression analysis. Visual impairment: low vision plus blindness. OR: odds ratio. CI: confidence interval. BMI = weight (kg)/height (m2).