Riska BSL, et al. - Whether comorbidity differs in men and women with hip fracture and to what degree differences in comorbidity according to gender may explain the higher excess mortality in men, was investigated. Greater comorbidity was reported among men vs women, though this did not explain the difference according to gender in excess mortality after hip fracture. In particular, vulnerability was noted among men who fractured a hip even when there was no apparent comorbidity. Special attention in follow-up and care are warranted for this especially vulnerable subpopulation.