Marital Status, Living Arrangement, and Cancer Recurrence and Survival in Patients with Stage III Colon Cancer: Findings from CALGB 89803 (Alliance)

Seohyuk Lee, Chao Ma, Sui Zhang, Fang Shu Ou, Tiffany M. Bainter, Donna Niedzwiecki, Leonard B. Saltz, Robert J. Mayer, Renaud Whittom, Alexander Hantel, Al Benson, Daniel Atienza, Hedy Kindler, Cary P. Gross, Melinda L. Irwin, Jeffrey A. Meyerhardt, Charles S. Fuchs*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

Background: Limited and conflicting findings have been reported regarding the association between social support and colorectal cancer (CRC) outcomes. We sought to assess the influences of marital status and living arrangement on survival outcomes among patients with stage III colon cancer. Patients and Methods: We conducted a secondary analysis of 1082 patients with stage III colon cancer prospectively followed in the CALGB 89803 randomized adjuvant chemotherapy trial. Marital status and living arrangement were both self-reported at the time of enrollment as, respectively, married, divorced, separated, widowed, or never-married, and living alone, with a spouse or partner, with other family, in a nursing home, or other. Results: Over a median follow-up of 7.6 years, divorced/separated/widowed patients experienced worse outcomes relative to those married regarding disease free-survival (DFS) (hazards ratio (HR), 1.44 (95% CI, 1.14-1.81); P =.002), recurrence-free survival (RFS) (HR, 1.35 (95% CI, 1.05-1.73); P = .02), and overall survival (OS) (HR, 1.40 (95% CI, 1.08-1.82); P =.01); outcomes were not significantly different for never-married patients. Compared to patients living with a spouse/partner, those living with other family experienced a DFS of 1.47 (95% CI, 1.02-2.11; P = .04), RFS of 1.34 (95% CI, 0.91-1.98; P = .14), and OS of 1.50 (95% CI, 1.00-2.25; P =.05); patients living alone did not experience significantly different outcomes. Conclusion: Among patients with stage III colon cancer who received uniform treatment and follow-up within a nationwide randomized clinical trial, being divorced/separated/widowed and living with other family were significantly associated with greater colon cancer mortality. Interventions enhancing social support services may be clinically relevant for this patient population. Trial Registration: ClinicalTrials.gov

Original languageEnglish (US)
Pages (from-to)E494-E505
JournalOncologist
Volume27
Issue number6
DOIs
StatePublished - Jun 2022

Funding

Research reported in this publication was supported by the National Cancer Institute of the National Institutes of Health under Award Numbers U10CA180821, U10CA180882 and U24CA196171 (to the Alliance for Clinical Trials in Oncology),UG1CA233180,UG1CA233327,UG1CA189858, UG1CA233290, U10CA180867, U10CA138561, U10CA180791, UG1CA233337, R01CA149222, and P30CA016359; U10CA180888 (SWOG); U10CA180820 and UG1CA233320 (ECOG-ACRIN). https://acknowledgments.alliancefound.org. J.A.M. research is supported by the Douglas Gray Woodruff Chair fund, the Guo Shu Shi Fund, Anonymous Family Fund for Innovations in Colorectal Cancer, Project P fund, and the George Stone Family Foundation. Also supported in part by funds from Pharmacia & Upjohn Company (now Pfizer Oncology; to C.S. Fuchs), the Stand-Up-to-Cancer Colorectal Cancer Dream Team (C.S. Fuchs, Grant Number: SU2C-AACR-DT22-17), NIH R01 CA169141, NIH R01 CA118553, and NIH P50 CA127003 to C.S. Fuchs. Stand Up To Cancer is a division of the Entertainment Industry Foundation. Research grants are administered by the American Association for Cancer Research, the Scientific Partner of SU2C. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.

Keywords

  • clinical trial
  • colonic neoplasms
  • marital status
  • residence characteristics
  • survival analysis

ASJC Scopus subject areas

  • General Medicine

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