Visual outcomes at baseline and 1 year for the two cognitive groups
| Baseline mean (SD) | 1 year mean (SD) | 95% CI for difference between baseline and 1 year* | p Value* | |
|---|---|---|---|---|
| Outcome: visual quality of life | ||||
| Normal cognition (n=46) | 79.3 (12.4) | 93.7 (5.5) | 11.2 to 17.7 | <0.001 |
| Impaired cognition (n=45) | 77.6 (13.9) | 90.0 (9.6) | 8.6 to 16.3 | <0.001 |
| 95% CI for difference between cognitive groups† | −3.8 to 7.8 | 0.4 to 7.0 | ||
| p Value† | 0.5 | 0.03 | ||
| Outcome: best corrected visual acuity | ||||
| Normal cognition (n=46) | 0.13 (0.09) | 0.00 (0.09) | 0.09 to 0.16 | <0.001 |
| Impaired cognition (n=45) | 0.18 (0.14) | 0.06 (0.11) | 0.08 to 0.16 | <0.001 |
| 95% CI for difference between cognitive groups† | 0.00 to 0.10 | 0.02 to 0.10 | ||
| p Value† | 0.05 | 0.007 | ||
*From paired t tests.
†From independent t tests.