Geographic, racial, and sex disparities in time to treatment for early-onset colorectal cancer

JAMA Network Open

2026-03-16

(Press-News.org) About The Study: This cross-sectional analysis found that delays in treatment initiation for early-onset colorectal cancer—often exceeding 90 days—were more common in all-urban populations and appeared to disproportionately affect young male, Asian or Pacific Islander, Black, or Hispanic patients. Although absolute differences in average treatment timing were modest, the focus in this study on clinically relevant delay thresholds (30, 60, and 90 days) is supported by recent meta-analytic literature. The consistency of these delays across sociodemographic groups challenges assumptions of uniformly timely access in urban settings.

Corresponding Author: To contact the corresponding author, Meng-Han Tsai, PhD, email metsai@augusta.edu.

To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/

(doi:10.1001/jamanetworkopen.2026.1980)

Editor’s Note: Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support.

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About JAMA Network Open: JAMA Network Open is an online-only open access general medical journal from the JAMA Network. On weekdays, the journal publishes peer-reviewed clinical research and commentary in more than 40 medical and health subject areas. Every article is free online from the day of publication.

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