Table 2.
Comparison of RDW by age and gender in DR, DM, and control group.
| Control | Diabetes mellitus | Diabetic retinopathy | F value | p value | ||
|---|---|---|---|---|---|---|
| Male | <=58 | 12.22 ± 0.58 (n = 38) | 12.21 ± 0.56 (n = 33) | 12.95 ± 0.87 (n = 37) | 11.31 | <0.001 a,b |
| >58 | 12.41 ± 0.53 (n = 39) | 12.52 ± 0.61 (n = 28) | 13.11 ± 1.70 (n = 48) | 3.52 | <0.001 a,b | |
| Female | <=58 | 12.46 ± 0.42 (n = 44) | 12.93 ± 0.82 (n = 28) | 12.95 ± 0.73 (n = 43) | 7.46 | 0.001 a,c |
| >58 | 12.53 ± 0.46 (n = 49) | 12.99 ± 1.30 (n = 42) | 13.34 ± 1.11 (n = 39) | 9.71 | <0.001 a,b,c |
Data are expressed as mean ± standard deviation (SD). One-way ANOVA was used. ap < 0.05 for the difference between DR group and control group (1-way ANOVA with the LSD post hoc test). bp < 0.05 for the difference between DR group and DM group (1-way ANOVA with the LSD post hoc test). cp < 0.05 for the difference between DM group and control group (1-way ANOVA with the LSD post hoc test).