TABLE 1.
Summary of Demographics and Baseline Characteristics
| Variable | Overall (N=42) | SGDD (N=22) | CPC (N=20) |
|---|---|---|---|
| Demographics | |||
| Age [y, mean (±SD)] | 63.6 (±10.4) | 63.1 (±11.2) | 64.2 (±9.8) |
| [range] | [36–83] | [36–83] | [43–78] |
| Sex [males, n (%)] | 14 (57) | 13 (59) | 11 (55) |
| Self-reported race, n (%) | |||
| White | 20 (47.6) | 11 (50) | 9 (45) |
| Black | 17 (41) | 9 (41) | 8 (40) |
| Other | 5 (12) | 2 (9) | 3 (15) |
| Self-reported ethnicity, n (%) | |||
| Hispanic | 13 (31) | 6 (27) | 7 (35) |
| Comorbid conditions | |||
| Systemic hypertension, n (%) | 32 (76) | 17 (77) | 15 (75) |
| Diabetes, n (%) | 17 (40) | 9 (41) | 8 (40) |
| Autoimmune disease, n (%) | 4 (10) | 3 (14) | 1 (5) |
| Ocular characteristics | |||
| Study eye [right, n (%)]** | 20 (48) | 15 (68) | 5 (25) |
| Glaucoma type, n (%) | |||
| Primary open angle | 19 (45) | 10 (41) | 10 (50) |
| Primary angle-closure | 2 (5) | 1 (5) | 1 (5) |
| Mixed mechanism glaucoma | 3 (7) | 2 (9) | 1 (5) |
| Neovascular | 6 (14) | 3 (14) | 3 (15) |
| Uveitic | 5 (12) | 2 (9) | 3 (15) |
| Other secondary glaucoma | 7 (17) | 5 (23) | 2 (10) |
| Intraocular Pressure [mm Hg, mean (±SD)] | 26.9 (±9.1) | 27.6 (±8.7) | 26.2 (±9.7) |
| [range] | [13–55] | [15–46] | [13–55] |
| On IOP-lowering medications, n (%) | 41 (98) | 21 (95) | 20 (100) |
| No. IOP-lowering medications [n, mean, (±SD)] | 3.2 (±0.9) | 3.0 (±1.0) | 3.3 (±1.1) |
| [range] | [0–5] | [0–4] | [1–5] |
| On oral carbonic anhydrase inhibitor, n (%) | 6 (14) | 2 (9) | 4 (20) |
| Best-corrected visual acuity [logMAR, mean (±SD)] | 0.74 (±0.82) | 0.97 (±0.90) | 0.49 (±0.66) |
| [range] | [0.0–2.6] | [0.0–2.3] | [0.0–2.6] |
| Visual field [mean deviation, mean, (±SD)] | −16.6 (±9.8) | −14.9 (±8.2) | −19.0 (±11.6) |
| [range] | [−34.2 to −2.1] | [−29.2 to −2.1] | [−34.2 to −3.6] |
| (n) | (n=29) | (n=17) | (n=12) |
*
For P<0.05.
**
For P<0.01.
***
For P<0.001 Obtained from 2-sample t test or Fisher Exact test for comparing between groups.
CPC indicates cyclophotocoagulation; IOP, intraocular pressure; SGDD, second glaucoma drainage device.