Table 2 Gender differences in signed and absolute prediction errors
From: Gender differences in refraction prediction error of five formulas for cataract surgery
Overall (n = 8431) Mean (SD) | Female (n = 4799) Mean (SD) | Male (n = 3632) Mean (SD) | P-valuea | |
|---|---|---|---|---|
Refractive Prediction Error | ||||
Holladay 1 | − 0.017 (0.569) | 0.053 (0.585) | − 0.110 (0.533) | < 0.0001* |
SRK/T | −0.011 (0.570) | 0.072 (0.585) | −0.120 (0.529) | < 0.0001* |
Hoffer Q | −0.016 (0.596) | 0.051 (0.623) | −0.104 (0.547) | < 0.0001* |
Haigis | −0.019 (0.557) | 0.011 (0.585) | −0.059 (0.514) | < 0.0001* |
Barrett | −0.021 (0.516) | 0.021 (0.533) | −0.076 (0.488) | < 0.0001* |
Refractive Absolute Prediction Error | ||||
Holladay 1 | 0.396 (0.409) | 0.398 (0.432) | 0.394 (0.375) | 0.93 |
SRK/T | 0.403 (0.403) | 0.405 (0.428) | 0.400 (0.367) | 0.77 |
Hoffer Q | 0.424 (0.420) | 0.433 (0.451) | 0.412 (0.375) | 0.11 |
Haigis | 0.386 (0.402) | 0.391 (0.436) | 0.379 (0.353) | 0.30 |
Barrett | 0.357 (0.374) | 0.363 (0.391) | 0.349 (0.349) | 0.17 |