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Table 1 Characteristics of the respondents at baseline, compared with those of non-respondents at five-month follow-up

From: Co-morbidity and visual acuity are risk factors for health-related quality of life decline: five-month follow-up EQ-5D data of visually impaired older patients

Patient characteristics Respondents (n = 246) Non-respondents (n = 50)
Age in years: mean (SD) 78.0 (8.9) 80.3 (7.8)
Gender: female 62.6% 58.0%
LogMAR visual acuity best eye: median [IQR] 0.55 [0.42;0.77] 0.52 [0.41;0.80]
Social status: living alone 52.4% 62.0%
Independent living: 85.8% 78.0%
Rehabilitation type: optometric service 53.7% 58.0%
Co-morbidity: 75.5% 70.0%
Primary cause of visual impairment*   
Age-related macular degeneration 53.1% 50.0%
Diabetic retinopathy 13.2% 14.0%
Glaucoma 5.8% 8.0%
Cataract 5.3% 6.0%
Occluded vein 5.3% 6.0%
Other 17.3% 16.0%
  1. SD = standard deviation; IQR = interquartile range;
  2. *Cause of visual impairment in the eye with the better visual acuity as assessed at baseline during a routine clinical
  3. eye examination by the participant's ophthalmologist.