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Table 6 Linear stepwise regression analysis of all data, 2008–2018 inclusive

From: Catquest-9SF functioning over a decade – a study from the Swedish National Cataract Register

Variable Unstandardized beta Standard error Standardized beta Significance 95% CI, lower 95% CI, upper
BCVA in the operated eye 4.138 0.063 0.331 0.000 4.014 4.262
Ocular comorbiditya 0.414 0.024 0.087 0.000 0.367 0.461
Second-eye surgery −0.362 0.023 −0.076 0.000 −0.406 −0.317
Sex −0.178 0.023 −0.038 0.000 −0.222 −0.134
Capsule complication 0.483 0.122 0.019 0.000 0.244 0.722
Age −0.004 0.001 −0.013 0.007 −0.006 −0.001
Surgical difficultyb −0.112 0.044 −0.012 0.011 −0.198 −0.026
  1. Dependent variable: postoperative person Rasch score. Independent variables: postoperative best corrected visual acuity (logMAR) in the operated eye, age, sex (coded as female 0, male 1), ocular co-morbidity (coded as yes 1, no 0), surgical difficulty (coded as yes 1, no 0), second-eye surgery (coded as yes 1, no 0), and capsule complication (coded as yes 1, no 0)
  2. BCVA = best corrected visual acuity; logMAR = logarithm of the minimum angle of resolution; 95% CI = 95% confidence interval
  3. aOcular comorbidity includes age-related macular degeneration, glaucoma, diabetic retinopathy, and “other” sight threatening ocular comorbidity
  4. bSurgical difficulty includes small pupil with need of stretching, white or dense cataract with need of staining, need of capsular hooks and capsular tension ring