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Table 5 Multivariable linear regression analysis of parameters with statistically significant association with ME on univariable analysis in the TMR group

From: Comparison of outcomes after topography-modified refraction versus wavefront-optimized versus manifest topography-guided LASIK

Parameter Value Coefficient 95% CI p-value
Preoperative CA (D)
 Univariable analysis 1.37 ± 0.63 0.149 0.012–0.285 0.036*
 Multivariable analysis −0.003 −0.106 – 0.099 0.950
Preoperative magnitude difference between CA and RA (D)
 Univariable analysis 0.33 ± 0.39 0.392 0.187–0.597 <  0.001*
 Multivariable analysis 0.262 0.102–0.422 0.002*
Postoperative cylinder (D)
 Univariable analysis −0.45 ± 0.35 − 0.728 − 0.920 – − 0.536 <  0.001*
 Multivariable analysis − 0.677 − 0.855 – − 0.498 <  0.001*
  1. ME = magnitude of error; TMR = topography-modified refraction; CA = corneal astigmatism; RA = refractive astigmatism. *Statistically significant (P < .05)