In a study of adults with cancer, those who developed a mental health condition within the first year after their cancer diagnosis had a higher likelihood of dying over the next few years. The findings are published by Wiley online in CANCER , a peer-reviewed journal of the American Cancer Society.
In the analysis of data on all patients at University of California–affiliated hospitals, researchers identified all adult patients who were diagnosed with cancer in 2013–2023 but had no documented mental health disorder before their diagnosis.
Among 371,189 patients, 39,687 (10.6%) developed a mental health disorder within a year. After taking potentially influencing factors into account, a mental health disorder diagnosis was linked to a 51% higher risk of death in the initial 1–3 years after cancer diagnosis. This elevated risk diminished to a 17% higher risk after 3–5 years and then disappeared.
The findings support the importance of prompt screening and treatment of distress and mental health following a cancer diagnosis.
“Over the past several years, we’ve had an increasing appreciation for the important relationship between cancer, its treatment, and mental health,” said lead author Julian Hong, MD, MS, of the University of California, San Francisco. “This study reproduces our prior work by leveraging the shared experience across the University of California system, reinforcing a relationship between mental health conditions and mortality for patients with cancer and highlighting the need to prioritize and manage mental health.”
Additional information
NOTE: The information contained in this release is protected by copyright. Please include journal attribution in all coverage. A free abstract of this article will be available via the CANCER Newsroom upon online publication. For more information or to obtain a PDF of any study, please contact: Sara Henning-Stout, newsroom@wiley.com
Full Citation:
“Association of Mental Health Disorders and All-Cause Mortality for Patients with Cancer: Large-Scale Analysis of University of California Health System Data.” Amir Ashraf Ganjouei, Travis Zack, Isabel Friesner, William C. Chen, Lauren Boreta, Steve E. Braunstein, Michael W. Rabow, Maria E. Garcia, and Julian C. Hong. CANCER; Published Online: February 23, 2026 (DOI: 10.1002/cncr.70254).
URL Upon Publication: http://doi.wiley.com/10.1002/cncr.70254
Author Contact: Elizabeth Fernandez, senior public information representative at the University of California, San Francisco, at elizabeth.fernandez@ucsf.edu .
About the Journal
CANCER is a peer-reviewed publication of the American Cancer Society integrating scientific information from worldwide sources for all oncologic specialties. The objective of CANCER is to provide an interdisciplinary forum for the exchange of information among oncologic disciplines concerned with the etiology, course, and treatment of human cancer. CANCER is published on behalf of the American Cancer Society by Wiley and can be accessed online. Follow CANCER on X @JournalCancer and Instagram @ACSJournalCancer , and stay up to date with the American Cancer Society Journals on LinkedIn and YouTube .
About Wiley
Wiley is a global leader in authoritative content and research intelligence for the advancement of scientific discovery, innovation, and learning. With more than 200 years at the center of the scholarly ecosystem, Wiley combines trusted publishing heritage with AI-powered platforms to transform how knowledge is discovered, accessed, and applied. From individual researchers and students to Fortune 500 R&D teams, Wiley enables the transformation of scientific breakthroughs into real-world impact. From knowledge to impact—Wiley is redefining what's possible in science and learning. Visit us at Wiley.com and Investors.Wiley.com . Follow us on Facebook , X , LinkedIn and Instagram .
Cancer
Association of Mental Health Disorders and All-Cause Mortality for Patients with Cancer: Large-Scale Analysis of University of California Health System Data
23-Feb-2026