Table 1.
Demographic data and comparison of platelet parameters (mean ± SD) for the four study groups.
| Group 1 (control) | Group 2 (no DR) | Group 3 (NDR) | Group 4 (PDR) | p value | |
|---|---|---|---|---|---|
| Age | 63.39 ± 8.52 | 60.87 ± 8.31 | 62.72 ± 7.19 | 61.66 ± 7.91 | >0.05 |
| Sex | 48/37 | 49/40 | 48/40 | 49/38 | >0.05 |
| MPV | 7.42 ± 0.68 | 7.84 ± 0.76 | 7.90 ± 0.85 | 8.31 ± 0.76 | 0.036a |
| PDW | 12.19 ± 1.36 | 13.02 ± 1.29 | 13.49 ± 1.18 | 13.77 ± 1.26 | 0.006a |
| PLCR | 28.59 ± 2.28 | 30.45 ± 2.19 | 31.31 ± 2.15 | 31.71 ± 2.16 | >0.05 |
| PCT | 0.27 ± 0.05 | 0.26 ± 0.06 | 0.25 ± 0.04 | 0.24 ± 0.03 | >0.05 |
| Platelet count | 253.76 ± 50.87 | 253.86 ± 60.87 | 254.77 ± 72.87 | 264.96 ± 64.44 | >0.05 |
DR: diabetic retinopathy; MPV: mean platelet volume; NDR: nonprogressive diabetic retinopathy; PCT: plateletcrit; PDR: progressive diabetic retinopathy; PDW: platelet distribution width; PLCR: platelet large cell ratio.
aBetween groups 2 and 4.