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Table 8 ANOVA Table of the postoperative SE prediction error of preoperative corneal astigmatism orientation groups. (average axial length eyes, i.e., eyes with an axial length greater than 22.0 mm and less than 25.0 mm)

From: Investigating the impact of preoperative corneal astigmatism orientation on the postoperative spherical equivalent refraction following intraocular lens implantation

ANOVA Table
Source SS df MS F Prob>F
Groups (Between) 1.775 2 0.8877 3.749 0.025
Error (Within) 67.479 285 0.2368   
Total 69.255 287    
  1. SS=Sum of Squares; df = degree of freedom; MS = Mean Square; F=F-Statistic