Table 4

Predictors of good visual outcome after cataract surgery in multivariate analysis of eyes in the study sample

CharacteristicOR (95% Cl)P value
Age at cataract surgery (per year)1.00 (0.97 to 1.02)0.91
Male sex0.94 (0.69 to 1.27)0.68
Highest level of education0.006*
 Some high school1.00
 High school graduate1.80 (1.17 to 2.76)0.008
 Some college1.66 (1.07 to 2.57)0.03
 College graduate or more2.35 (1.44 to 3.82)<0.001
Clinical centre network0.001*
 Northeastern US1.00
 Canada1.72 (0.99 to 2.97)0.05
 Western US2.16 (1.22 to 3.84)0.09
 Minnesota/Iowa2.93 (1.60 to 5.35)<0.001
 Ohio/Michigan2.25 (1.31 to 3.86)0.003
 Southeastern US1.69 (0.96 to 2.99)0.07
 Veterans Affairs3.46 (1.90 to 6.28)<0.001
Preoperative VA<0.001*
 <20/2001.00
 <20/40-20/2001.65 (1.05 to 2.59)0.03
 <20/20-20/404.29 (2.69 to 6.83)<0.001
 ≥20/2010.59 (4.07 to 27.54)<0.001
Bilateral cataract surgery1.55 (1.14 to 2.10)0.005
  • *Overall p-values calculated for categorical variables with >2 levels.

  • VA, visual acuity.