The reliability of a frailty index may depend on the deficits included.

Purpose: Recently, a short version of the TOPICS-MDS questionnaire, the Short Form (SF) was developed. The aim of this study was to assess the validity and reliability of two versions of a frailty index (FI) based on this SF: with or without information on present diseases included.

Methods: This was a clinical, prospective study of geriatric patients.