Table 2.
Demographics, percentages and clinical findings of the subjects in both groups
| Regression group (N = 56) |
Non-regression (N = 180) |
|
P-value | |
|---|---|---|---|---|
| Age at surgery, n(%) | <0.001 | 0.975 | ||
|
<20 ≥ 20 |
24(42.9) 32(57.1) |
78(43.3) 102(56.7) |
||
| Postoperative period (years), n(%); | 17.450 | < 0.001 | ||
| 5–10 | 26 (46.4) | 135 (75.0) | ||
| 11–16 | 30 (53.6) | 45 (25) | ||
| Types of CRS, n(%) | 16.090 | < 0.001 | ||
| Intrastromal ablations | 42 (75.0) | 169 (93.9) | ||
| subepithelial ablations | 14 (25.0) | 11 (6.1) | ||
| Preoperative SE(D), n(%); | 1.723 | 0.189 | ||
| −0.5D～−3.0D | 23(41.1) | 92(51.1) | ||
| −3.0D～−5.0D | 33(58.9) | 88(48.9) | ||
| Dry eye test, n(%) | 0.025 | 0.873 | ||
| Non-dry eye | 31 (55.4) | 98 (54.4) | ||
| Dry eye | 25 (44.6) | 82 (45.6) | ||
| Eye habits | ||||
| Weekly outdoor activity time, n(%) | 25.823 | < 0.001 | ||
| ≤ 5 h | 18(62.1) | 13(14.4) | ||
| >5 h | 11(37.9) | 77(85.6) | ||
| Daily screen time, n(%) | 18.631 | < 0.001 | ||
| ≤5 h | 4(13.8) | 20(22.2) | ||
| 5 to 8 h | 16(55.2) | 67(74.4) | ||
| >8 h | 9(31.0) | 3(3.4) | ||
| Continuous near-work time, n(%) | 13.910 | < 0.001 | ||
| >45 min | 18 (62.1) | 22 (24.4) | ||
| ≤ 45 min | 11(37.9) | 68(75.6) |
CRS Corneal refractive surgery, SE Spherical equivalent