A utility analysis correlation with visual acuity: Methodologies and vision in the better and poorer eyes

被引：27
作者：
Brown M.M. [1 ,2 ]
Brown G.C. [1 ,3 ]
Sharma S. [4 ]
Smith A.F. [3 ]
Landy J. [1 ]
机构：
[1] Ctr. Evid.-Based Hlth. Care Econ., Suite 210, Flourtown, PA 19031
[2] Cataract and Prim. Eye Care Service, Retina Service, Wills Eye Hospital, Philadelphia, PA
[3] Medical Economics Unit, Retina Service, Wills Eye Hospital, Philadelphia, PA
[4] Ctr. Cost-Effect. Ocular Hlth. Plcy., Queens University, Kingston, Ont.
来源：
International Ophthalmology | 2001年 / 24卷 / 3期
关键词：
Correlations; Standard gamble; Time tradeoff; Utility values; Visual acuity;
D O I：
10.1023/A:1021171000838
中图分类号：
学科分类号：
摘要：
Objective: To ascertain the correlation between visual acuity levels and ophthalmic utility values obtained using time tradeoff and standard gamble utility analysis methodologies. Methods: Three hundred twenty-five consecutive patients with visual loss to 20/40 or less in at least one eye with predominantly vitreoretinal pathology were evaluated in a cross-sectional fashion using a standardized testing methodology to obtain ophthalmic time tradeoff and standard gamble utility values. Spearman correlation coefficients were employed to correlate the utility values with visual acuity in better seeing and poorer seeing eyes. Results: The Spearman correlation coefficient for time tradeoff utility values and vision in the better seeing eye was 0.455 (p < 0.001), while that for time tradeoff utility values and visual acuity in the poorer seeing eye was 0.268 (p < 0.001). The coefficient for standard gamble utility values and the better seeing eye was 0.371 (p < 0.001), while that for standard gamble utility values and vision in the poorer seeing eye was 0.250 (p < 0.001). Conclusions: There is a greater correlation between ophthalmic utility values and vision in the better seeing eye, as versus vision in the poorer seeing eye. Time tradeoff ophthalmic utility values demonstrate a greater correlation with vision in the better seeing eye than do standard gamble utility values.
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页码：123 / 127
页数：4
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