Table 3. Bivariate analysis of VA changes.
|
VA changes |
||||||
|---|---|---|---|---|---|---|
|
Men |
Women |
|||||
|
<0.41 (n=575) |
≥0.41 (n=1366) |
P-value |
<0.41 (n=915) |
≥0.41 (n=1859) |
P-value | |
| n (%) | n (%) | n (%) | n (%) | |||
| Age (years) | <0.001 | <0.001 | ||||
| <65 | 67 (11.75) | 261 (19.38) | 88 (9.71) | 242 (13.07) | ||
| 65–75 | 211 (37.02) | 521 (38.68) | 286 (31.57) | 671 (36.25) | ||
| >75 | 292 (51.23) | 565 (41.95) | 532 (58.72) | 938 (50.68) | ||
| Level of education | 0.002 | <0.001 | ||||
| None | 147 (26.97) | 263 (20.48) | 340 (39.86) | 509 (28.94) | ||
| Primary | 261 (47.89) | 723 (56.31) | 441 (51.70) | 1068 (60.72) | ||
| Secondary or more | 137 (25.14) | 298 (23.21) | 72 (8.44) | 182 (10.35) | ||
| Employment | 0.01 | 0.002 | ||||
| Employed | 43 (7.66) | 167 (12.48) | 28 (3.19) | 86 (4.76) | ||
| Housework | 1 (0.18) | 7 (0.52) | 373 (42.48) | 861 (47.67) | ||
| Retired | 517 (92.16) | 1164 (87.00) | 477 (54.33) | 859 (47.56) | ||
| Social dependency | 0.33 | 0.003 | ||||
| Yes | 240 (54.42) | 636 (51.71) | 416 (55.39) | 819 (48.81) | ||
| No | 201 (45.58) | 594 (48.29) | 335 (44.61) | 859 (51.19) | ||
| Marital status | 0.62 | 0.05 | ||||
| Married/with partner | 442 (29.49) | 1057 (70.51) | 390 (45.30) | 884 (50.08) | ||
| Divorced | 43 (29.25) | 104 (70.57) | 74 (8.59) | 152 (8.61) | ||
| Widowed | 64 (32.82) | 131 (67.18) | 397 (46.11) | 729 (41.30) | ||
| Living arrangements | 0.29 | 0.16 | ||||
| Live alone | 47 (8.47) | 120 (9.02) | 244 (28.01) | 447 (24.78) | ||
| Live with partner | 499 (89.91) | 1200 (90.16) | 614 (70.49) | 1335 (74.00) | ||
| Live in a residential home | 9 (1.62) | 11 (0.83) | 13 (1.49) | 22 (1.22) | ||
| Contralateral VA | 0.005 | 0.15 | ||||
| ≤0.1 | 49 (8.60) | 71 (5.24) | 48 (5.29) | 88 (4.76) | ||
| 0.2–0.4 | 193 (33.86) | 420 (31) | 360 (39.65) | 670 (36.26) | ||
| ≥0.5 | 328 (57.54) | 864 (63.76) | 500 (55.07) | 1090 (58.98) | ||
| Time to intervention (months) | 0.39 | 0.51 | ||||
| ≤2 | 131 (28.98) | 378 (32.50) | 204 (28.02) | 442 (27.97) | ||
| 2–4 | 218 (48.23) | 533 (45.83) | 331 (45.47) | 752 (47.59) | ||
| ≥4 | 103 (22.79) | 252 (21.67) | 193 (26.51) | 386 (24.43) | ||
Abbreviations: n (%), frequency (percentage); VA, visual acuity; VF-14, Visual Function Index-14.
Change of VA is defined as the difference of the best-corrected VA measured at six weeks after surgery and the baseline assessment categorised.
For the association between categorical variables, we used the χ2- or Fisher's exact test.