Table 1 Risk factors/indicators of a good VA outcome: postoperative VA 6/12 or better

From: The Cataract National Dataset electronic multi-centre audit of 55 567 operations: risk indicators for monocular visual acuity outcomes

Variable Adjusted odds ratio (95% CI) a P-value
Age
 <60 1.00 <0.0001
 60–69 0.75 (0.61, 0.93)  
 70–79 0.55 (0.46, 0.67)  
 80–89 0.31 (0.26, 0.38)  
 90+ 0.17 (0.14, 0.22)  
Axial length b
 ≤22.37 0.65 (0.57, 0.73) <0.0001
 22.38–22.95 0.89 (0.79, 1.01)  
 22.96–23.47 1.00  
 23.48–24.18 1.08 (0.95, 1.23)  
 ≥24.19 1.01 (0.89, 1.16)  
Any ocular comorbidity
 No 1.00  
 Yes 0.46 (0.41, 0.52) <0.0001
Age-related macular degeneration
 No 1.00 <0.0001
 Yes 0.57 (0.50, 0.65)  
Diabetic retinopathy
 No 1.00 <0.0001
 Yes 0.41 (0.34, 0.49)  
Amblyopia
 No 1.00 <0.0001
 Yes 0.38 (0.31, 0.48)  
Corneal pathology
 No 1.00 <0.0001
 Yes 0.56 (0.45, 0.71)  
High myopia
 No 1.00 0.0156
 Yes 0.74 (0.58, 0.94)  
Previous vitrectomy
 No 1.00 <0.0001
 Yes 0.25 (0.17, 0.37)  
Previous retinal detachment surgery
 No 1.00 0.0376
 Yes 0.67 (0.46, 0.98)  
Brunescent or white cataract
 No 1.00 <0.0001
 Yes 2.16 (1.71, 2.72)  
No fundal view/vitreous opacities
 No 1.00 0.0008
 Yes 1.76 (1.26, 2.44)  
Prazosin
 No 1.00 0.0010
 Yes 0.29 (0.14, 0.61)  
Posterior capsule rupture
 No 1.00 <0.0001
 Yes 0.41 (0.32, 0.53)  
Surgeon grade
 Consultant 1.00 0.0360
 Associate specialist 1.24 (1.07, 1.43)  
 Staff grade 1.15 (0.86, 1.54)  
 Fellow 1.05 (0.86, 1.26)  
 Specialist registrar 1.06 (0.96, 1.16)  
 SHO 0.92 (0.78, 1.08)  
  1. Logistic regression analysis with adjustment for baseline VA; N=40 646; C-Stat or area under ROC curve=0.81.
  2. aThe odds ratio refers to the likelihood of achieving a good outcome of VA 6/12 or better. Factors with OR<1 were less likely and those with OR>1were more likely to be associated with a good VA outcome.
  3. bAxial length divided into quintiles.