Table 7. Association of Surgical Complications With Treatment Outcome, Vision Loss, and Cataract Progression in the Tube Versus Trabeculectomy Study.
| Treatment Outcomea | Vision Lossb | Cataract Progressionc | |||||||
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| Successd (n =91) | Failured (n = 66) | P Value | Stable Visiond (n = 80) | Loss of ≥2 Snellen Linesd (n = 64) | P Value | Stabled (n = 8) | Progressedd (n = 31) | P Value | |
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| |||||||||
| Any postoperative complication | |||||||||
| No | 39 (43) | 28 (42) | >.99e | 36 (45) | 24 (38) | .46e | 7 (88) | 15 (48) | .11g |
| Yes | 52 (57) | 38 (58) | 44 (55) | 40 (63) | 1 (13) | 16 (52) | |||
| Number of postoperative complications | |||||||||
| 0 | 39 (43) | 28 (42) | >.99f | 36 (45) | 24 (38) | .092f | 7 (88) | 15 (48) | .15f |
| 1 | 29 (32) | 19 (29) | 27 (34) | 20 (31) | 0 | 8 (26) | |||
| 2 | 14 (15) | 14 (21) | 13 (16) | 11 (17) | 1 (13) | 4 (13) | |||
| 3 | 5 (5) | 4 (6) | 3 (4) | 6 (9) | 0 | 1 (3) | |||
| 4 | 4 (4) | 1 (2) | 1 (1) | 3 (5) | 0 | 3 (10) | |||
a
Analysis includes all patients who completed a 5-year follow-up visit and/or failed during the first 5 years of the study.
b
Analysis includes all patients who had Snellen VA measured at the 5-year follow-up visit. One additional patient did not have Snellen VA assessed at 5 years, but was determined to have lost >2 Snellen lines based on change in Early Treatment Diabetic Retinopathy Study visual acuity.
c
Analysis includes all phakic patients who completed a 5-year visit and/or had cataract progression during the first 5 years of the study.
d
Data are presented as number (percentage).
e
χ2 test.
f
Armitage exact test of trend in proportions.
g
Fisher exact test.