Table 4.
Logistic regression models evaluating the risk factors in DR.
| Variable | Against control group | Against DM group | ||||
|---|---|---|---|---|---|---|
| Odds ratio∗ | 95% confidence interval | p value | Odds ratio∗ | 95% confidence interval | p value | |
| SBP (mmHg) | 1.951 | 1.039–1.987 | 0.004 | 1.007 | 0.994–1.020 | 0.269 |
| DBP (mmHg) | 0.902 | 0.919–0.984 | 0.673 | 0.987 | 0.958–1.018 | 0.410 |
| RDW (%) | 3.791 | 2.330–6.168 | <0.001 | 1.348 | 0.997–1.823 | 0.047 |
| WBC (×109) | 1.351 | 1.106–1.651 | 0.003 | 1.138 | 0.968–1.339 | 0.118 |
| HG (g/L) | 0.933 | 0.912–0.955 | <0.001 | 0.955 | 0.935–0.975 | <0.001 |
| HbA1c (%) | 1.228 | 0.955–1.579 | 0.019 | |||
| Diabetes duration (year) | 1.178 | 1.120–1.240 | <0.001 | |||
Binary logistic regression was used. Odds Ratio∗: adjusted with age, gender, BMI and hypertension. BMI: body mass index, SBP: systolic blood pressure, DBP: diastolic blood pressure, WBC: white blood cell, HG: hemoglobin, HbA1c: glycated hemoglobin A1c.