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Table 3 Contribution of the variables to the priority score

From: Explicit criteria for prioritization of cataract surgery

  General linear model   Logistic regression
Variable R 2 Difference P value Variable -2 log L Difference P value
      924.040   
Visual acuity in cataractous eye 0.136   <0.001 Visual function 824.363 99.677 <0.001
Expected visual acuity 0.390 0.254 <0.001 Visual acuity in cataractous eye 806.617 17.746 <0.001
Visual function 0.777 0.387 <0.001 Expected visual acuity 770.361 36.256 0.011
Contralateral visual acuity 0.824 0.047 <0.001 Contralateral visual acuity 766.778 3.583 0.250
Ocular comorbidities 0.872 0.048 <0.001 Ocular comorbidities 764.305 2.473 0.596
Social dependence 0.881 0.009 <0.001 Social dependence 762.447 1.858 0.160
Laterality 0.882 0.001 0.001 Laterality 762.418 0.029 0.843
Appropriateness 0.947 0.065 <0.001 Appropriateness 756.008 6.410 0.007
  1. R2, R square. Difference, difference in R square after the introduction of a new variable.