Table 3 Risk factors/indicators of clinically significant loss of vision: doubling or worse of pre- to postoperative visual angle, eg, 6/12 to 6/24

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 0.0026
 60–69 0.87 (0.54, 1.39)  
 70–79 1.08 (0.72, 1.63)  
 80–89 1.36 (0.91, 2.05)  
 90+ 1.93 (1.14, 3.29)  
Axial length b
 ≤22.37 1.51 (1.16, 1.96) <0.0001
 22.38–22.95 0.99 (0.74, 1.31)  
 22.96–23.47 1.00  
 23.48–24.18 0.97 (0.72, 1.29)  
 ≥24.19 0.77 (0.56, 1.05)  
Any ocular comorbidity
 No 1.00 <0.0001
 Yes 2.28 (1.87, 2.77)  
Diabetic retinopathy
 No 1.00 0.0078
 Yes 1.73 (1.16, 2.59)  
Pupil size at surgery
 Large 1.00 0.0012
 Medium 0.78 (0.57, 1.08)  
 Small 1.85 (1.26, 2.70)  
Posterior capsule rupture
 No 1.00 <0.0001
 Yes 5.74 (3.93, 8.40)  
  1. Logistic regression analysis with adjustment for baseline VA; N=40,678; C-Stat or area under ROC curve=0.71.
  2. aThe odds ratio refers to the risk of a doubling or worse of the visual angle between pre- and postoperative measurements, eg, eyes in which a posterior capsule rupture has arisen intraoperatively are 5.74 times more likely to suffer a doubling or worse of the visual angle compared with those without this intraoperative complication.
  3. bAxial length divided into quintiles.