Results of the analysis of covariance: outcomes at 2 years by group using a best eye/worst eye analysis (n=346)
Hospital (mean) | Community (mean) |
Difference between means (95% CI) | p Value | |
Better eye: | ||||
Number of points missed on visual field testing | 7.9 | 6.8 | 0.07 (−1.86 to 2.01) | 0.94 |
Intraocular pressure (mm Hg) | 19.3 | 19.3 | 0.26 (−1.21to 0.68) | 0.59 |
Cup disc ratio | 0.72 | 0.72 | 0.00 (−0.02 to 0.03) | 0.70 |
Worse eye: | ||||
Number of points missed on visual field testing | 20.2 | 18.3 | 0.04 (−3.49 to 3.40) | 0.98 |
Intraocular pressure (mm Hg) | 19.1 | 19.0 | 0.53 (−1.58 to 0.51) | 0.32 |
Cup disc ratio | 0.74 | 0.74 | 0.00 (−0.03 to 0.02) | 0.78 |
↵Differences are from the analysis of covariance and are adjusted for baseline visual field measurements