Abstract:
:The increased demand for health status measures in evaluating medical interventions has increased the importance of clarifying when to use generic versus disease-specific health status measures. The authors compared the performance of a well known generic health status measure, the Sickness Impact Profile (SIP), and a disease-specific measure of functional impairment related to vision (the VF-14) in detecting functional impairment in 426 cataract patients before and at 12 months after first eye cataract surgery. Using analysis of covariance models, the associations were assessed between the SIP and VF-14 and four criterion variables--patient ratings of trouble and satisfaction with their vision and overall health, and best corrected visual acuity--after controlling for patient age and medical comorbidities. Preoperative patient ratings of trouble and satisfaction with vision were significantly associated with VF-14 scores (P < 0.001), but not with SIP scores. Preoperative visual acuity in the better eye was significantly associated with both VF-14 and SIP scores (P < 0.001). Patient general health ratings were significantly associated with SIP scores (P < 0.001), but not with VF-14 scores. Postoperative changes in patient ratings of their vision and in visual acuity were significantly associated with changes in VF-14 scores (P < 0.05), but not with changes in SIP scores. Changes in patient ratings of overall health were significantly associated with changes in SIP scores (P < 0.01), but not with changes in VF-14 scores. In patients undergoing cataract surgery, a disease-specific health status measure is more sensitive to preoperative functional impairment related to vision, and to change in functional impairment after cataract surgery, than is a generic health status measure.
journal_name
Med Carejournal_title
Medical careauthors
Damiano AM,Steinberg EP,Cassard SD,Bass EB,Diener-West M,Legro MW,Tielsch J,Schein OD,Javitt J,Kolb Msubject
Has Abstractpub_date
1995-04-01 00:00:00pages
AS120-30issue
4 Suppleissn
0025-7079issn
1537-1948journal_volume
33pub_type
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