Table 2.
Cox regression analysis of risk factors for diabetic retinopathy.
| Variables | HR | 95% CI | P value |
|---|---|---|---|
| Mean systolic blood pressure | 1.023 | 1.019~1.028 | <0.001 |
| SD of systolic blood pressure | 1.019 | 1.012~1.026 | <0.001 |
| Mean diastolic blood pressure | 0.986 | 0.968~1.005 | 0.151 |
| SD of diastolic blood pressure | 0.999 | 0.994~1.004 | 0.601 |
| Mean pulse pressure | 1.009 | 1.002~1.016 | 0.018 |
| SD of pulse pressure | 1.020 | 1.006~1.034 | <0.001 |
| Mean MAP | 0.992 | 0.976~1.009 | 0.381 |
| SD of MAP | 0.996 | 0.983~1.008 | 0.496 |
| HbA1c | 1.289 | 1.257~1.321 | <0.001 |
| TC | 0.999 | 0.996~1.003 | 0.701 |
| TG | 0.999 | 0.999~1.000 | 0.059 |
| HDL-C | 0.981 | 0.976~0.986 | <0.001 |
| LDL-C | 1.006 | 1.002~1.010 | <0.001 |
Note: MAP: mean arterial pressure; HbA1c: glycosylated hemoglobin; TC: total cholesterol; TG: triglycerides; HDL-C: high-density lipoprotein cholesterol; LDL-C: low-density lipoprotein cholesterol; HR: risk ratio; CI: confidence interval. Correction for age, gender, and disease course. HRs were for per 1-unit increase of each continuous variable.