Table 1.
Patient Characteristics at the Time of Glaucoma Reoperation in the Tube Versus Trabeculectomy Study
| Tube Group (n = 8) |
Trabeculectomy Group (n = 18) |
P-value | |
|---|---|---|---|
|
| |||
| Age (years) | .87b | ||
| Mean ± SD | 69.3 ± 12.6 | 68.4 ± 11.9 | |
| Range | 48–83 | 33–88 | |
|
| |||
| Gender, n (%) | .22c | ||
| Male | 6 (75) | 8 (44) | |
| Female | 2 (25) | 10 (56) | |
|
| |||
| Race, n (%) | 1.00d | ||
| White | 3 (38) | 6 (33) | |
| Black | 5 (63) | 10 (56) | |
| Hispanic | 0 | 1 (6) | |
| Other | 0 | 1 (6) | |
|
| |||
| Diabetes mellitus, n (%) | 2 (25) | 9 (50) | .40c |
|
| |||
| Hypertension, n (%) | 4 (50) | 9 (50) | 1.00c |
|
| |||
| IOP (mm Hg), | .078b | ||
| Mean ± SD | 21.3 ± 5.6 | 27.5 ± 8.6 | |
| Range | 14–33 | 18–47 | |
|
| |||
| Glaucoma medications, mean ± SD | 3.3 ± 1.2 | 2.9 ± 1.1 | .46b |
|
| |||
| Diagnosis, n (%) | .24d | ||
| POAG | 8 (100) | 12 (67) | |
| CACG | 0 | 2 (11) | |
| Other | 0 | 4 (22) | |
|
| |||
| Lens status, n (%) | .85d | ||
| Phakic | 1 (13) | 2 (11) | |
| PCIOL | 7 (88) | 13 (72) | |
| ACIOL | 0 | 2 (11) | |
| Aphakic | 0 | 1 (6) | |
|
| |||
| Stratuma | .39d | ||
| 1 | 2 (25) | 9 (50) | |
| 2 | 4 (50) | 4 (22) | |
| 3 | 0 | 2 (11) | |
| 4 | 2 (25) | 3 (17) | |
|
| |||
| Previous intraocular surgery | .70b | ||
| Mean ± SD | 2.88 ± .99 | 2.72 ± .89 | |
| Range | 2–5 | 2–5 | |
|
| |||
| Time interval since randomized surgical treatment (months), | .67b | ||
| Mean ± SD | 27.4 ± 13.7 | 24.1 ± 19.8 | |
| Range | 6–41 | 4–64 | |
|
| |||
| Snellen VA | .31b | ||
| LogMAR mean ± SD | .94 ± .89 | .60 ± .58 | |
| Median | 20/100 | 20/50 | |
| Range | 20/20-CF | 20/25-CF | |
ACIOL = anterior chamber intraocular lens; CACG = chronic angle-closure glaucoma; CF = count fingers; IOP = intraocular pressure; PCIOL = posterior chamber intraocular lens; POAG = primary openangle glaucoma; SD = standard deviation; VA = visual acuity
a
Stratum 1 = previous cataract extraction; stratum 2 = previous trabeculectomy or combined procedure without an antifibrotic agent; stratum 3 = previous trabeculectomy with 5-fluorouracil or combinedprocedure with 5-fluorouracil or mitomycin C; stratum 4 = previous trabeculectomy with mitomycin C
b
Student t-test
c
Fisher’s exact test
d
Exact permutation chi-square test