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Using Best-Worst Scaling to Understand Patient Priorities: A Case Example of Papanicolaou Tests for Homeless Women

Published on Jul 1, 2016in Annals of Family Medicine4.185
· DOI :10.1370/afm.1937
Eve Wittenberg21
Estimated H-index: 21
(Harvard University),
Monica Bharel12
Estimated H-index: 12
(Harvard University)
+ 2 AuthorsLinda Weinreb20
Estimated H-index: 20
(UMMS: University of Massachusetts Medical School)
Abstract
PURPOSE Best-worst scaling (BWS) is a survey method for assessing individuals' priorities. It identifies the extremes—best and worst items, most and least impor - tant factors, biggest and smallest influences—among sets. In this article, we demonstrate an application of BWS in a primary care setting to illustrate its use in identifying patient priorities for services. METHODS We conducted a BWS survey in 2014 in Boston, Massachusetts, to assess the relative importance of 10 previously identified attributes of Papanico - laou (Pap) testing services among women experiencing homelessness. Women were asked to evaluate 11 sets of 5 attributes of Pap services, and identify which attribute among each set would have the biggest and smallest influence on pro - moting uptake. We show how frequency analysis can be used to analyze results. RESULTS In all, 165 women participated, a response rate of 72%. We identified the most and least salient influences on encouraging Pap screening based on their frequency of report among our sample, with possible standardized scores ranging from+1.0 (biggest influence) to -1.0 (smallest influence). Most impor - tant was the availability of support for issues beyond health (+0.39), while least important was the availability of accommodations for personal hygiene (-0.27). CONCLUSIONS BWS quantifies patient priorities in a manner that is transpar - ent and accessible. It is easily comprehendible by patients and relatively easy to administer. Our application illustrates its use in a vulnerable population, showing that factors beyond those typically provided in health care settings are highly important to women in seeking Pap screening. This approach can be applied to other health care services where prioritization is helpful to guide decisions.
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