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FT3 levels based on different stages of DR.
| Group | Number | FT3 (pmol/L) | P |
|---|---|---|---|
| Normal | 390 | 4.83 ± 0.50 | |
| Mild and moderate NPDR | 154 | 4.69 ± 0.46 | 0.002a |
| Severe NPDR | 47 | 4.27 ± 0.34 | <0.001a |
| PDR | 42 | 4.40 ± 0.49 | <0/001a |
Data are shown as mean ± SD. P < 0.001 for difference among groups by analysis of variance (ANOVA) test and LSD t-test for multiple comparisons. a:compared with the Normal group. NPDR: nonproliferative diabetic retinopathy; PDR: proliferative diabetic retinopathy.
