Retinopathy-free survival rates and HRs for type 1 DM according to the SIMD quintiles
| Survival (retinopathy-free) | |||||
|---|---|---|---|---|---|
| SIMD quintiles (%) | (N) | 1 year (%) | 5 years (%) | 10 years (%) | HR (95% CI)* |
| 0–20 most deprived | 145 | 93.7 | 82.5 | 40.6 | 2.16 (1.27 to 3.69) |
| 20–40 | 134 | 99.3 | 86.3 | 66.0 | 0.95 (0.52 to 1.74) |
| 40–60 | 130 | 96.1 | 83.7 | 67.3 | 0.94 (0.51 to 1.72) |
| 60–80 | 188 | 97.8 | 89.4 | 72.5 | 0.80 (0.45 to 1.43) |
| 80–100 least deprived | 112 | 98.1 | 86.4 | 66.7 | – |
*ORs are derived from a Cox regression model, which also accounts for age and gender, and are relative to the most deprived SIMD quintile. SIMD quintile was significant in this model (p<0.001).
DM, diabetes mellitus; SIMD, Scottish Index of Multiple Deprivation.