Table 3.
The mean and changes of BCVA (LogMAR) in case and control groups in different follow ups
| BCVA (LogMAR) | Total (n = 101) | Case (n = 49) | Control (n = 52) | Diff | 95% CI | P | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Mean ± SD | Median (range) | Mean ± SD | Median (range) | Mean ± SD | Median (range) | Lower | Upper | |||
| Pre | 0.48 ± 0.31 | 0.4 (0 to 1.3) | 0.52 ± 0.33 | 0.4 (0.05 to 1.3) | 0.45 ± 0.28 | 0.4 (0 to 1.3) | 0.07 | -0.05 | 0.18 | 0.88 |
| 6 W | 0.14 ± 0.23 | 0.08 (0 to 1.3) | 0.07 ± 0.1 | 0.05 (0 to 0.4) | 0.21 ± 0.29 | 0.1 (0 to 1.3) | -0.13 | -0.26 | -0.01 | 0.198 |
| 12 W | 0.14 ± 0.21 | 0.1 (0 to 1) | 0.07 ± 0.07 | 0.05 (0 to 0.22) | 0.2 ± 0.26 | 0.13 (0 to 1) | -0.13 | -0.25 | -0.01 | 0.028 |
| 24 W | 0.12 ± 0.19 | 0.05 (0 to 0.7) | 0.14 ± 0.18 | 0.1 (0 to 0.7) | 0.1 ± 0.2 | 0 (0 to 0.7) | 0.04 | -0.11 | 0.20 | 0.723 |
| Pre-6 W | -0.32 ± 0.32 | -0.3 (-1 to 0.6) | -0.42 ± 0.26 | -0.4 (-1 to 0) | -0.23 ± 0.34 | -0.14 (-0.9 to 0.6) | -0.19 | -0.36 | -0.02 | 0.295 |
| P-Whitin§ | < 0.001 | < 0.001 | ||||||||
| Pre-12 W | -0.32 ± 0.28 | -0.3 (-1 to 0.48) | -0.37 ± 0.25 | -0.37 (-1 to 0.05) | -0.27 ± 0.3 | -0.28 (-0.9 to 0.48) | -0.10 | -0.27 | 0.07 | 0.655 |
| P-Whitin§ | < 0.001 | < 0.001 | ||||||||
| Pre-24 W | -0.33 ± 0.23 | -0.3 (-0.9 to 0) | -0.34 ± 0.21 | -0.34 (-0.78 to 0) | -0.31 ± 0.27 | -0.26 (-0.9 to 0) | -0.03 | -0.22 | 0.16 | 0.152 |
| P-Whitin§ | < 0.001 | 0.004 | ||||||||
BCVA, best corrected visual acuity; LogMAR, logarithm of the minimum angle of resolution; SD, standard deviation; w, weeks; Diff, difference; CI, confidence interval; P, probability
§Based on t-test
† Based on generalized linear mixed model (GLM)