期刊
JOURNAL OF THORACIC ONCOLOGY
卷 17, 期 5, 页码 623-636出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jtho.2021.12.005
关键词
Lung cancer; Meta-analysis; Smoking cessation; Survival; Systematic review
资金
- Italian Ministry of Health
This study summarized the current scientific evidence on the impact of quitting smoking at or around diagnosis on the survival of lung cancer (LC) patients. The results showed that quitting smoking at or around diagnosis is significantly associated with improved overall survival among LC patients, regardless of the histological type of LC. Therefore, treating physicians should educate patients about the benefits of quitting smoking and provide them with the necessary support for smoking cessation.
Introduction: Lung cancer (LC) remains a disease with poor prognosis despite recent advances in treatments. Here, we aimed at summarizing the current scientific evidence on whether quitting smoking at or around diagnosis has a beneficial effect on the survival of LC patients. Methods: We searched MEDLINE and EMBASE for articles published until 31st October, 2021, that quantified the impact on LC patients' survival of quitting smoking at or around diagnosis or during treatment. Study-specific data were pooled into summary relative risk (SRR) and corresponding 95% confidence intervals (CI) using random effect meta-analysis models. Results: Twenty-one articles published between 1980 and 2021 were included, which encompassed a total of over 10,000 LC patients. There was substantial variability across studies in terms of design, patients' characteristics, treatments received, criteria used to define smoking status (quitters or continued), and duration of follow-up. Quitting smoking at or around diagnosis was significantly associated with improved overall survival (SRR 0.71, 95% CI 0.64-0.80), consistently among patients with non-small cell LC (SRR 0.77, 95% CI 0.66-0.90, n studies = 8), small cell LC (SRR 0.75, 95% CI 0.57-0.99, n studies = 4), or LC of both or unspecified histological type (SRR 0.81, 95% CI 0.68-0.96, n studies = 6). Conclusions: Quitting smoking at or around diagnosis is associated with a beneficial effect on the survival of LC patients. Treating physicians should educate LC patients about the benefits of quitting smoking even after diagnosis and provide them with the necessary smoking cessation support. (C) 2021 International Association for the Study of Lung Cancer. Published by Elsevier Inc. All rights reserved.
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