Characteristics of participants and association with glaucoma drainage device exposure by univariable analysis
| Participant characteristics (n=1073) | Total number (%) | Number with exposure (%) | p Value | OR (95% CI) |
|---|---|---|---|---|
| Gender | 0.011 | 2.00 (1.17 to 3.43) | ||
| Male | 483 (45) | 20 (4) | ||
| Female | 590 (55) | 47 (8) | ||
| Race | 0.044* | 1.69 (1.01 to 2.83) | ||
| White | 550 (51) | 43 (8) | ||
| Black | 503 (47) | 24 (5) | ||
| Other | 20 (2) | 0 | ||
| Diabetes | 0.296 | 0.76 (0.45 to 1.28) | ||
| Present | 300 (28) | 23 (34) | ||
| Not present | 711 (66) | 42 (63) | ||
| Unknown | 62 (6) | 2 (3) | ||
| Uveitis | 0.410 | 0.78 (0.44 to 1.40) | ||
| History of uveitis | 209 (20) | 8 (12) | ||
| No history of uveitis | 649 (60) | 47 (70) | ||
| Unknown | 215 (20) | 12 (18) | ||
| Glaucoma drainage device | 0.203* | 0.67 (0.42 to 1.16) | ||
| Ahmed | 598 (56) | 43 (7) | ||
| Baerveldt | 470 (44) | 24 (5) | ||
| Molteno | 4 (<1) | 0 | ||
| Shocket | 1 (<1) | 0 | ||
| Patch graft material | 0.174* | 1.50 (0.85 to 2.65) | ||
| Eye bank sclera | 591 (55) | 43 (7) | ||
| Tutoplast sclera | 363 (34) | 18 (5) | ||
| Sclera NOS | 75 (7) | 4 (5) | ||
| Single-layer Tutoplast pericardium | 39 (4) | 2 (5) | ||
| Double-layer Tutoplast pericardium | 14 (1) | 0 | ||
| Unknown | 1 (<1) | 0 | ||
| Location | 0.955 | 1.03 (0.40 to 2.63) | ||
| Superior | 991 (92) | 62 (6) | ||
| Inferior | 82 (8) | 5 (6) | ||
| Total number of glaucoma drainage devices in eye | 0.125† | 0.65 (0.37 to 1.13) | ||
| One | 817 (76) | 49 | ||
| Two | 175 (16) | 16 | ||
| Three | 24 (2) | 2 | ||
| Four | 1 (<1) | 0 | ||
| Value | p Value | |||
| Age (years, mean±SD; median) | 64±16; 66 | 65±16; 69 | 0.335 | |
*p Values and ORs derived from Fishers Exact test for comparison of exposure for italicised variables (other variables in that category with insufficient data points for analysis).
†p Value for comparison of a single glaucoma drainage device versus multiple glaucoma drainage devices in the same eye.
NOS, not otherwise specified.