Table 1.
Description of demographic characteristics and bivariate analysis
| Variables | Activity levels | ||||
|---|---|---|---|---|---|
| All (N = 195) | Mild (N = 77) | Moderate (N = 93) | Severe (N = 25) | p | |
| Sex, female, n (%) | 106 (54) | 42 (55) | 52 (56) | 12 (48) | 0.770 |
| Age, mean (SDa) | 45.8 (16.1) | 46.5 (15.7) | 45.3 (17.1) | 45.4 (13.8) | 0.890 |
| Patient VASb median (IQRc) | 5.0 (2.0–7.0) | 3.0 (2.0–6.0) | 5.0 (2.0–7.0) | 7.0 (6.0–8.0) | <0.001 |
| Physician VASb median (IQRc) | 4.0 (2.0–6.0) | 2.0 (2.0–3.0) | 5.0 (3.0–6.0) | 7.0 (6.0–8.0) | <0.001 |
| Eye, right n (%) | 106 (54) | 40 (52) | 54 (58) | 12 (48) | 0.570 |
| Anatomic location n (%) | |||||
| Anterior | 100 (51.28) | 56 (72.73) | 37 (39.78) | 7 (28) | <0.001 |
| Intermediate | 30 (15.38) | 7 (9.09) | 23 (24.73) | 0 (0) | |
| Posterior | 29 (14.87) | 3 (3.9) | 17 (18.28) | 9 (36) | |
| Panuveitis | 36 (18.46) | 11 (14.29) | 16 (17.2) | 9 (36) | |
| Visual acuity median (IQRc) | 0.8 (0.4–1.2) | 1.0 (0.5–1.2) | 0.6 (0.3–1.0) | 0.4 (0.2–0.8) | <0.001 |
| Anterior chamber cell grade n (%) | <0.001 | ||||
| 0 | 49 (25) | 9 (12) | 32 (34) | 8 (32) | |
| 1+ | 59 (30) | 36 (47) | 18 (19) | 5 (20) | |
| 2+ | 48 (25) | 26 (34) | 21 (23) | 1 (4) | |
| 3+ | 32 (16) | 6 (8) | 20 (22) | 6 (24) | |
| 4+ | 7 (4) | 0 (0) | 2 (2) | 5 (20) | |
| Hypopyon median (IQRc) | 0.0 (0.0–0.0) | 0.0 (0.0–0.0) | 0.0 (0.0–0.0) | 0.0 (0.0–0.0) | 0.620 |
| Fibrin in the anterior chamber n (%) | 18 (9) | 4 (5) | 10 (11) | 4 (16) | 0.197 |
| Keratic precipitates n (%) | 104 (53) | 42 (55) | 48 (52) | 14 (56) | 0.890 |
| Iris nodules n (%) | 6 (3) | 4 (5) | 2 (2) | 0 (0) | 0.500 |
| Intraocular pressure n (%) | 0.013 | ||||
| ≤21 mmHg | 178 (91) | 73 (95) | 86 (92) | 19 (76) | |
| >21 mmHg | 17 (9) | 4 (5) | 7 (8) | 6 (24) | |
| Vitreous haze n (%) | <0.001 | ||||
| Null | 117 (60) | 59 (77) | 49 (53) | 9 (36) | |
| Mild (1–2+) | 49 (25) | 15 (19) | 27 (29) | 7 (28) | |
| Severe (3–4+) | 26 (13) | 3 (4) | 16 (17) | 7 (28) | |
| Presence of snowballs n (%) | 23 (12) | 6 (8) | 15 (16) | 2 (8) | 0.220 |
| Snowbanks: number of clock hours, median (IQRc) | 0.0 (0.0–0.0) | 0.0 (0.0–0.0) | 0.0 (0.0–0.0) | 0.0 (0.0–0.0) | 0.640 |
| Macular edema n (%) | <0.001 | ||||
| ≤315 μm | 155 (79) | 72 (94) | 63 (68) | 20 (80) | |
| >315 μm | 40 (21) | 5 (6) | 30 (32) | 5 (20) | |
| Choroidal or retinal lesions: maximal size (disk diameter) median (IQRc) | 0.0 (0.0–0.0) | 0.0 (0.0–0.0) | 0.0 (0.0–0.0) | 0.0 (0.0–0.3) | 0.198 |
| Number of choroidal or retinal lesions n (%) | 0.009 | ||||
| 0 | 166 (85) | 72 (94) | 77 (83) | 17 (68) | |
| 1–5 | 16 (8) | 4 (5) | 9 (10) | 3 (12) | |
| ≥6 | 12 (6) | 1 (1) | 7 (8) | 4 (16) | |
| Exudative retinal detachment n (%) | 4 (2) | 0 (0) | 4 (4) | 0 (0) | 0.185 |
| Inflammatory vessel sheathing n (%) | 38 (19) | 7 (9.1) | 19 (20.4) | 12 (48) | <0.001 |
| Papillitis n (%) | 18 (9) | 2 (2.6) | 10 (10.8) | 6 (24) | 0.004 |
a SD standard deviation, b VAS visual analog scale, c IQR interquartile interval