Abstract
The purpose of the study was to assess whether, and to what degree, comorbidities affect patient quality of life. A cross-sectional, quality-of-life study of 170 consecutive vitreoretinal patients compared the utility associated with a participant's primary (most incapacitating) disease and the utility associated with a grouping of all of the participants' diseases. The ocular diseases present included diabetic retinopathy (44%), macular degeneration (30%), lattice degeneration/retinal tear (14%), retinal vascular obstruction (5%), uveitis, macular oedema, macular pucker (5%) and others (2%). Participants underwent interviewer-administered, time trade-off utility questions for each disease, then for a compilation of all diseases. Their primary disease was defined by the lowest utility reported for a single disease, while other health conditions were considered comorbidities. A two-tailed, paired t test was used to compare the means of the primary disease utilities and compilation utilities. The study was powered to have a 90% chance of detecting an 8% difference in mean utility between the two utility groups The mean lowest utility for the most disabling single health condition (primary disease) was 0.82 (SD 0.22; 95% CI 0.79 t...Continue Reading
Citations
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