Table 2 Distribution of prevalence of diabetic retinopathy among various groups
Variables | No DR†n‡(%) | Mild NPDR§ n (%) | Moderate NPDR n (%) | Severe + very severe NPDR n (%) | PDR¶ n (%) | DR (n = 4766) % (95% CI) |
|---|---|---|---|---|---|---|
Total | 19,984 (80.7) | 1707 (6.9) | 1933 (7.8) | 717 (2.9) | 409 (1.7) | 19.3 (18.8–19.7) |
Gender | ||||||
Male | 10,104 (79.5 ) | 891 (7 ) | 1071 (8.4 ) | 409 (3.2) | 235 (1.8 ) | 20.5 (19.8–21.2) |
Female | 9880 (82.1 ) | 816 (6.8 ) | 862 (7.2 ) | 308 (2.6) | 174 (1.4 ) | 17.9 (17.3–18.6) |
Age group | ||||||
< 50 | 7232 (85.1 ) | 546 (6.4 ) | 477 (5.6 ) | 169 (2.0) | 77 (0.9 ) | 14.9 (14.2–15.7) |
50 and above | 12,752 (78.5 ) | 1161 (7.1 ) | 1456 (9 ) | 548 (3.4) | 332 (2 ) | 21.5 (20.9–22.2) |
Up to 30 | 853 (90.6) | 42 (4.5) | 32 (3.4) | 7 (0.7) | 8 (0.8) | 9.4 (7.6–11.3) |
31–60 | 13,124 (81.3) | 1134 (7) | 1166 (7.2) | 469 (2.9) | 258 (1.6) | 18.7 (18.1–19.3) |
> 60 | 6007 (78.5) | 531 (6.9) | 735 (9.6) | 241 (3.1) | 143 (1.9) | 21.5 (20.6–22.5) |
DM duration (years) | ||||||
< 10 | 16,510 (86.1) | 1149 (6) | 1015 (5.3) | 345 (1.8) | 156 (0.8) | 13.9 (13.4–14.4) |
11–20 | 3155 (63.6) | 503 (10.1) | 783 (15.8) | 326 (6.6) | 196 (3.9) | 36.4 (35.1–37.8) |
> 20 | 319 (52.1) | 55 (9) | 135 (22.1) | 46 (7.5) | 57 (9.3) | 47.9 (43.9–51.8) |
DM type | ||||||
Type 1 | 451 (84.5) | 33 (6.2) | 33 (6.2) | 8 (1.5) | 9 (1.7) | 15.5 (12.5–18.6) |
Type 2 | 19,533 (80.7) | 1674 (6.9) | 1900 (7.8) | 709 (2.9) | 400 (1.7) | 19.3 (18.8–19.8) |
Treatment | ||||||
Yes | 16,192 (78.5) | 1542 (7.5) | 1821 (8.8) | 685 (3.3) | 397 (1.9) | 21.5 (21–22.1) |
No (Diet only) | 3792 (92.2) | 165 (4.0) | 112 (2.7) | 32 (0.8) | 12 (0.3) | 7.8 (7–8.6) |
Types of treatment | ||||||
Diet | 3792 (92.2) | 165 (4.0) | 112 (2.7) | 32 (0.8) | 12 (0.3) | 7.8 (7–8.6) |
OHA | 14,812 (80.1) | 1366 (7.4) | 1489 (8.1) | 539 (2.9) | 278 (1.5) | 19.9 (19.3–20.4) |
Insulin | 733 (73.7) | 73 (7.3) | 104 (10.5) | 52 (5.2) | 33 (3.3) | 26.3 (23.6–29.1) |
OHA with Insulin | 647 (55.9) | 103 (8.9) | 228 (19.7) | 94 (8.1) | 86 (7.4) | 44.1 (41.3–47) |