• Ying Wu, Pei-Zhen Zhu, Yin-Qiao Chen, Jie Chen, Lu Xu, and Huayi Zhang.
• Department of Oncology, the First People's Hospital of Yongkang City, Yongkang, Zhejiang Province, China.
• Medicine (Baltimore). 2022 Jan 7; 101 (1): e28492.

AbstractNumerous studies have focused on whether the marital status has an impact on the prognosis in patients with non-small cell lung cancer, but none have focused on lung adenocarcinoma.We selected 61,928 eligible cases with lung adenocarcinoma from the Surveillance, Epidemiology, and End Results database from 2004 to 2016 and analyzed the impact of marital status on cancer-specific survival (CSS) using Kaplan-Meier and Cox regression analyses.We confirmed that sex, age, race, cancer TNM stage and grade, therapeutic schedule, household income, and marital status were independent prognostic factors for lung adenocarcinoma CSS. Multivariate Cox regression showed that widowed patients had worse CSS (hazard ratio 1.26, 95% confidence interval 1.20-1.31, P < .001) compared with married patients. Subgroup analysis showed consistent results regardless of sex, age, cancer grade, and TNM stage. However, the trend was not significant for patients with grade IV cancer.These results suggest that marital status is first identified as an independent prognostic factor for CSS in patients with lung adenocarcinoma, with a clear association between widowhood and a high risk of cancer-specific mortality. Psychological and social support are thus important for patients with lung adenocarcinoma, especially unmarried patients.Copyright © 2022 the Author(s). Published by Wolters Kluwer Health, Inc.

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