Association Between the Frailty Index Based on Laboratory Tests and All-Cause Mortality in Hospitalized Older Adults: Retrospective Cohort Study

Eyal Pasternak   ^{1, 2} , MD ;   Tamar Freud   ^{1, 3} , PhD ;   Yan Press   ^{1, 2, 3, 4, 5, 6} , MD

¹ Division of Community Health, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer- Sheva, Israel

² Soroka Medical Center, Beer-Sheva, Israel

³ Siaal Research Center for Family Medicine and Primary Care, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer- Sheva, Israel

⁴ Department of Geriatrics, Soroka Medical Center, Ben-Gurion University of the Negev, Beer-Sheva, Israel

⁵ Unit for Community Geriatrics, Division of Health in the Community, Ben-Gurion University of the Negev, Beer-Sheva, Israel

⁶ Center for Multidisciplinary Research in Aging, Ben-Gurion University of the Negev, Beer-Sheva, Israel