Rosen RC, Coyne KS, Henry D, Link CL, Cinar A, Aiyer LP, Mollon P, Kaplan SA, Roehrborn CG, Thompson C. Beyond the cluster: methodological and clinical implications in the Boston Area Community Health survey and EPIC studies. BJU Int 2008 May;101(10):1274-8.
Abstract
To test the replicability and robustness of findings about urological symptoms in men and women, classified using an objective statistical method, cluster analysis, by planned sensitivity analyses conducted within and across two large, epidemiological studies of lower urinary tract symptoms.