Table 1 Baseline characteristics of patients
Variables | IVB (n = 3097) | IVR (n = 160) | P-value |
|---|---|---|---|
n (%) | n (%) | ||
Gender | Â | Â | 0.008* |
 Female | 1670 (54) | 69 (43) |  |
 Male | 1427 (46) | 91 (57) |  |
Age | Â | Â | 0.000* |
 Median (IQR; range) | 57 (15; 50–65) | 63 (19; 54–73) |  |
 18–50 years | 847 (27) | 33 (20) |  |
 51–60 years | 1037 (34) | 30 (19) |  |
  > 60 years | 1200 (39) | 97 (61) |  |
Universal health coverage | Â | Â | 0.000* |
 CSMBS | 432 (14) | 60 (38) |  |
 Non-CSMBSa | 2358 (76) | 67 (42) |  |
Smoking history | Â | Â | 0.500 |
 No | 2796 (90) | 142 (89) |  |
 Yes | 298 (10) | 18 (11) |  |
Underlying Diseases | Â | Â | Â |
 Diabetes mellitus | 2177 (70) | 74 (46) | 0.000* |
 Hypertension | 2047 (66) | 99 (62) | 0.262 |
 Dyslipidaemia | 1618 (52) | 84 (53) | 0.960 |
 Chronic kidney disease | 362 (12) | 12 (8) | 0.104 |
Ischaemic heart disease | 185 (6) | 10 (6) | 0.889 |
 Stroke | 120 (4) | 15 (9) | 0.001* |
Treated eye | Â | Â | 0.001* |
One eye (right or left eye) | 2537 (82) | 148 (92) | Â |
Both eyes | 560 (18) | 12 (8) | Â |
Retinal diseaseb | Â | Â | 0.000* |
 nAMD and PCV | 452 (12) | 52 (30) |  |
 Diabetic macular edema (DME) | 1293 (35) | 21 (12) |  |
 Retinal vein occlusion (RVO) | 461 (13) | 47 (27) |  |
 Proliferative diabetic retinopathy (PDR) | 963 (26) | 26 (15) |  |
Othersc | 484 (13) | 25 (15) | Â |
Visual Acuity (VA) at baselineb (approximate Snellen equivalent) | Â | Â | 0.195 |
 Reading from Snellen/ETDRS chart | 2427 (66) | 105 (61) |  |
 Median VA  (IQR; range) | 50.05 (20/100) (30.10, 35–65.10) | 54.90 (20/80) (30.10, 35–65.10) | 0.6474 |
 CF, HM, PL, and NPL | 1179 (32) | 63 (37) |  |