Comparing Performance of Comorbidity Indices in Predicting Functional Status, Health-Related Quality of Life, and Total Health Care Use in Older Adults With Back Pain.
Rundell SD, Resnik L, Heagerty PJ, Kumar A, Jarvik JG. Comparing Performance of Comorbidity Indices in Predicting Functional Status, Health-Related Quality of Life, and Total Health Care Use in Older Adults With Back Pain. J Orthop Sports Phys Ther. 2019 Jul 23; 1-18.