Table 2.
Stratified analysis.
| Variables | Periodic screening (N = 3850) | Nonperiodic screening (N = 37,672) | P-value | |
|---|---|---|---|---|
| N (%) | N (%) | |||
| AGE | ||||
| 20–44 years (N = 6,647) | DR treatment* | 0.44 | ||
| Yes | 15 (3.6) | 272 (4.4) | ||
| No | 405 (96.4) | 5,955 (95.6) | ||
| 46–64 years (N = 20,544) | DR treatment* | 0.40 | ||
| Yes | 107 (5.8) | 994 (5.3) | ||
| No | 1,743 (94.2) | 17,700 (94.7) | ||
| Over 65 years (N = 14,331) | DR treatment* | <0.001 | ||
| Yes | 64 (4.1) | 239 (1.9) | ||
| No | 1,516 (95.9) | 12,512 (98.1) | ||
| SEX | ||||
| Female (N = 20,783) | DR treatment* | 0.048 | ||
| Yes | 101 (5.0) | 765 (4.1) | ||
| No | 1,918 (95.0) | 17,999 (95.9) | ||
| Male (N = 20,739) | DR treatment* | 0.13 | ||
| Yes | 85 (4.6) | 740 (3.9) | ||
| No | 1,746 (95.4) | 18,168 (96.1) | ||
| Baseline CCI | ||||
| Mild (0–2; N = 14,312) | DR treatment* | 0.34 | ||
| Yes | 47 (4.7) | 714 (5.4) | ||
| No | 960 (95.3) | 12,591 (94.6) | ||
| Moderate (3–4; N = 14,950) | DR treatment* | 0.14 | ||
| Yes | 72 (4.9) | 553 (4.1) | ||
| No | 1,396 (95.1) | 12,929 (95.9) | ||
| Severe (over 5; N = 12,260) | DR treatment* | <0.001 | ||
| Yes | 67 (4.9) | 238 (2.2) | ||
| No | 1,308 (95.1) | 10,647 (97.8) | ||
*
Diabetic retinopathy (DR) treatments.