Yearly incidence of any and referable diabetic retinopathy in participants using insulin treatment and without retinopathy at baseline
| Time from last negative screen | Any retinopathy | Referable retinopathy | |||
|---|---|---|---|---|---|
| Annual incidence | Cumulative incidence | Annual incidence | Cumulative incidence | ||
| 1 year | 192.43 (177.70 to 206.50) | 192.43 (177.70 to 206.50) | 2.56 (1.13 to 4.70) | 2.56 (1.13 to 4.70) | |
| 2 years | 128.03 (120.00 to 136.85) | 320.64 (304.86 to 334.53) | 5.00 (3.33 to 6.50) | 7.67 (4.78 to 10.71) | |
| 3 years | 100.19 (92.02 to 109.50) | 421.62 (403.10 to 437.67) | 6.84 (4.23 to 9.43) | 14.48 (9.68 to 18.66) | |
| 4 years | 81.69 (74.32 to 89.49) | 502.95 (482.26 to 525.51) | 8.41 (4.40 to 12.90) | 22.81 (15.20 to 30.30) | |
Data are incidence (95% confidence interval) per 1000 people. Incidence of background retinopathy is the difference between the incidences of any and referable retinopathy.