Related Experiment Video
Updated: Sep 19, 2025

Measuring Frailty in HIV-infected Individuals. Identification of Frail Patients is the First Step to Amelioration and Reversal of Frailty
Published on: July 24, 2013
Racial disparities in longitudinal frailty state transitions among older cancer survivors
Hannah N Lee1, Anna G Kuzma1, Heidi D Klepin2
1Department of Epidemiology and Prevention, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, NC, United States of America.
Introduction:
Black older patients with cancer are at high risk of frailty during cancer treatment, yet racial disparities in long-term frailty state transitions during the survivorship phase are understudied.
Materials And Methods:
We conducted a longitudinal analysis of older cancer survivors (≥65 years) using rounds 1-9 (2011-2019) of the National Health and Aging Trends Study. A multistate Markov model assessed one-year transitions across Fried frailty phenotypes states (robust, prefrail, frail) and death, stratified by self-reported race (Black vs. non-Black).
Results:
Among 1303 survivors, 55 % were female, 24 % Black, and 76 % non-Black. Black survivors were less likely to remain robust (50 % vs. 57 %), more likely to stay frail (46 % vs. 39 %), more likely to die, and more likely to transition to poorer frailty states (e.g., robust to prefrail or frail) than non-Black survivors.
Discussion:
Black older cancer survivors experience poorer frailty trajectories than non-Black counterparts, highlighting the need for targeted survivorship care to improve long-term outcomes.
Related Concept Videos
Longitudinal Research
Longitudinal Studies
Cancer Survival Analysis
Comparing the Survival Analysis of Two or More Groups
Truncation in Survival Analysis
Left truncation occurs when individuals who experienced the event of interest before a certain time are not included in the study. This is often due to a "delayed entry" into the study where only those who survive until a certain entry point are...
Assumptions of Survival Analysis

