International Variation in Intervention Rates: What Are the Implications for Patient Selection?

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Abstract
While international variations in intervention rates are well recognized, little is known about their implications for patient selection. This paper describes an exploratory study in which the probability of undergoing an elective intervention (surgery for benign prostatic hyperplasia) in an area in the United Kingdom was compared with an area in the United States. It found that the area with high intervention rates was associated with higher levels of surgery in men with low levels of need who are unlikely to gain much benefit.