Table 1.
Study Population Characteristics
|
Characteristic |
Diabetic Controls (n
= 90) |
DR Patients (n
= 83) |
P
Value |
NPDR (n
= 49) |
PDR (n
= 34) |
P
Value |
| Age, y | 59.7 ± 10.0 | 57.9 ± 11.1 | 0.37 | 59.4 ± 11.3 | 55.7 ± 10.9 | 0.10 |
| Males, % | 52.3 | 63.2 | 0.21 | 61.4 | 65.6 | 0.89 |
| Diabetes duration, y | 11.0 ± 5.1 | 19.0 ± 9.0 | 6.8 × 10−10 | 17.7 ± 7.6 | 20.9 ± 10.6 | 0.28 |
| HbA1c, % | 7.9 ± 1.6 | 8.5 ± 1.9 | 0.012 | 8.6 ± 1.8 | 8.5 ± 2.1 | 0.97 |
| Creatinine, mg/dL | 0.86 ± 0.29 | 0.92 ± 0.46 | 0.13 | 0.92 ± 0.22 | 0.92 ± 0.64 | 0.88 |
| CAD, % | 25.6 | 22.9 | 0.82 | 22.4 | 23.5 | 1.0 |
| HTN, % | 76.7 | 73.5 | 0.76 | 79.6 | 64.7 | 0.21 |
| DLD, % | 74.4 | 61.5 | 0.10 | 67.4 | 52.9 | 0.27 |
Study groups were compared in terms of demographics and comorbidities. For age, diabetes duration, and HbA1c, the mean and standard deviations are presented and comparisons were made by t-test. For creatinine levels, the median and interquartile range are presented, and comparisons were made by Wilcoxon rank sum test. Sex and rates of comorbidities were compared by X2 test. HbA1c and creatinine levels taken from date closest to date of blood draw. CAD, coronary artery disease; HTN, hypertension; DLD, dyslipidemia.