Grusky AZ, Song A, Kim P, et al. - This study was undertaken to explore factors associated with the presence of rotator cuff tears in a cohort of patients with shoulder pain. Researchers conducted a longitudinal cohort including a total of 266 patients with shoulder pain between February 2011 and July 2016. Multivariate logistic regression was applied to evaluate the relationship of multiple factors associated with rotator cuff tears. They distinguished older age, involvement of the dominant shoulder, and a higher body mass index to be independently correlated with rotator cuff tear in a cohort of patients with shoulder pain. The mechanism of how these factors possibly lead to rotator cuff tears needs future study.