The Impact of Mindfulness-Based Stress Reduction (MBSR) on Psychological Outcomes and Quality of Life in Patients With Lung Cancer: A Meta-Analysis Author: Xu Tian1, Li-Juan Yi2, Chen-Si-Sheng Liang3, Lei Gu4, Chang Peng5, Gui-Hua Chen6, Maria F Jiménez-Herrera1 Affiliation: <sup>1</sup> Nursing Department, Universitat Rovira i Virgili, Tarragona, Spain. <sup>2</sup> School of Nursing, Hunan Traditional Chinese Medical College, Zhuzhou, China. <sup>3</sup> Medical School, Hunan Traditional Chinese Medical College, Zhuzhou, China. <sup>4</sup> Sports and Arts College, Hunan Traditional Chinese Medical College, Zhuzhou, China. <sup>5</sup> College of Physical Education, Hunan Traditional Chinese Medical College, Zhuzhou, China. <sup>6</sup> Department of Nursing, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China. Conference/Journal: Front Psychol Date published: 2022 Jun 28 Other: Volume ID: 13 , Pages: 901247 , Special Notes: doi: 10.3389/fpsyg.2022.901247. , Word Count: 262 Objective: The impact of the mindfulness-based stress reduction (MBSR) program on psychological outcomes and quality of life (QoL) in lung cancer patients remains unclear. This meta-analysis aimed to evaluate the effectiveness of the MBSR program on psychological states and QoL in lung cancer patients. Methods: Eligible studies published before November 2021 were systematically searched from PubMed, EMBASE, Cochrane Library, PsycINFO, China National Knowledge Infrastructure (CNKI), and Wanfang databases. The risk of bias in eligible studies was assessed using the Cochrane tool. Psychological variables and QoL were evaluated as outcomes. We used the Grading of Recommendations Assessment, Development and Evaluation (GRADE) system to grade the levels of evidence. Statistical analysis was conducted using RevMan 5.4 and STATA 14.0. Results: A total of 17 studies involving 1,680 patients were included for meta-analysis eventually. MBSR program significantly relieved cancer-related fatigue (standard mean difference [SMD], -1.26; 95% confidence interval [CI], -1.69 to -0.82; moderate evidence) and negative psychological states (SMD, -1.35; 95% CI, -1.69 to -1.02; low evidence), enhanced positive psychological states (SMD, 0.91; 95% CI, 0.56-1.27; moderate evidence), and improved quality of sleep (MD, -2.79; 95% CI, -3.03 to -2.56; high evidence). Evidence on MBSR programs' overall treatment effect for QoL revealed a trend toward statistical significance (p = 0.06, low evidence). Conclusion: Based on our findings, the MBSR program shows positive effects on psychological states in lung cancer patients. This approach should be recommended as a part of the rehabilitation program for lung cancer patients. Systematic review registration: https://archive.org/details/osf-registrations-mwvbq-v1, identifier: 10.17605/OSF.IO/MWVBQ. Keywords: lung cancer; meta-analysis; mindfulness-based stress reduction; physical and psychological wellbeing; quality of life. PMID: 35837627 PMCID: PMC9274275 DOI: 10.3389/fpsyg.2022.901247