Table 2.
Bivariate Associations Between Prediction Error (D) and Baseline and Surgery Characteristics
| PE | Absolute PE | |||||
|---|---|---|---|---|---|---|
| Variable | Group | n | Mean(SD) | P-value1 | Mean(SD) | P-value1 |
| Prediction Error | 49 | 1.0 (2.0) | - | 1.8 (1.3) | - | |
| Age at Surgery | 28–48 Days >48 Days |
22 27 |
1.6 (2.0) 0.5 (1.9) |
0.047 |
2.0 (1.6) 1.6 (1.1) |
0.32 |
| Axial Length (mm) | <18.0mm ≥18.0mm |
27 22 |
1.8 (2.0) −0.1 (1.6) |
<0.001 |
2.2 (1.5) 1.3 (1.0) |
0.01 |
| Keratometry Reading (D) |
<46.50D ≥46.50D |
26 23 |
1.0 (2.1) 0.9 (2.0) |
0.82 |
1.8 (1.4) 1.8 (1.3) |
0.90 |
| Corneal Diameter (mm) |
<10.5 ≥10.5 |
21 28 |
1.8 (2.0) 0.3 (1.8) |
0.01 |
2.3 (1.5) 1.5 (1.1) |
0.04 |
| A-Scan Rating | Good Quality Other |
45 4 |
1.1 (2.0) −0.7 (2.1) |
0.10 |
1.8 (1.4) 1.8 (0.9) |
0.99 |
| A-Scan Method | Immersion Contact |
32 14 |
1.0 (2.0) 0.9 (2.0) |
0.90 |
1.7 (1.3) 1.8 (1.3) |
0.91 |
| IOL Power (D) | <30.0 D ≥30.0 D |
24 25 |
−0.3 (1.6) 2.2 (1.7) |
<0.001 |
1.3 (1.0) 2.3 (1.5) |
0.004 |
| IOL Placement | Capsular Bag Sulcus |
46 3 |
1.1 (2.0) −0.6 (3.0) |
0.34 |
1.8 (1.3) 2.1 (1.7 |
0.89 |
1
P-values are for two-sample t-tests, except for baseline A-scan rating and IOL placement (Wilcoxon rank sum test).
2
Poor quality, unreadable or missing A-scans