Skip to main content

Advertisement

Table 2 Reported prevalences [%] of sociodemographic, quantitatively and qualitatively documented external factors with putative relevance for two outcome indicators of cataract surgery (refractive accuracy and visual rehabilitation), stratified and cumulated for three outpatient centres

From: A methodological approach to identify external factors for indicator-based risk adjustment illustrated by a cataract surgery register

Centre 1 2 3 1 – 3
  [%]
Sociodemographic external factors
Age ≥ 80 years 28.1 18.7 22.4 23.6
Female gender 59.2 56.8 60.3 59.4
Quantitatively documented external factors
Baseline visual acuity cc ≤ 0.1 14.4 9.2 7.0 9.8
Severe nearsightedness (myopia, axial eye length ≥ 25 mm) 7.5 11.0 8.7 8.7
Severe farsightedness (hyperopia, axial eye length ≤ 22 mm) 8.6 12.6 9.5 9.7
Qualitatively documented external factors
Presence of at least one pre-existing condition (potentially) reducing visual acuity 40.8 27.6 32.7 35.4
Presence of at least one known previous ocular surgery 3.8 3.7 1.8 2.9
Presence of at least one surgically relevant ocular risk factor 28.1 11.0 26.2 24.9