PMID- 33663076 OWN - NLM STAT- MEDLINE DCOM- 20210316 LR - 20230103 IS - 1536-5964 (Electronic) IS - 0025-7974 (Print) IS - 0025-7974 (Linking) VI - 100 IP - 8 DP - 2021 Feb 26 TI - The effect of pretreatment BMI on the prognosis and serum immune cells in advanced LSCC patients who received ICI therapy. PG - e24664 LID - 10.1097/MD.0000000000024664 [doi] LID - e24664 AB - This study aims to evaluate the prognosis and serum immune cells of patients with different pretreatment body mass index (BMI) values. The data of 61 newly diagnosed patients with advanced lung squamous cell carcinoma (LSCC) who received immune checkpoint inhibitors (ICIs) combined with chemotherapy were obtained from the database of Rizhao People's Hospital (Rizhao, Shandong). According to the cutoff value of BMI (23.2 kg/m2), 32 patients had a high BMI and the remaining 29 patients had a low BMI. The effects of different BMIs on the prognosis and serum immune cells of patients were analyzed. The median progression-free survival (PFS) times were 7.72 months in the high BMI group and 4.83 months in the low BMI group [adjusted hazard ratio (HR), 0.23; 95% confidence interval (CI), 0.11-0.48; P < .001]. In terms of the overall survival (OS), the median times of the high BMI group and low BMI group were 18.10 and 13.90 months, respectively (adjusted HR, 0.15; 95% CI, 0.07-0.32; P < .001). After 4 cycles of ICI therapy combined with chemotherapy, the objective response rate was 59.4% for the high BMI group and 20.7% for the low BMI group (P = .002). In addition, the number of serum immune cells in patients with high BMI was significantly higher than that in patients with low BMI (all P < .001). There was a linear relationship between BMI value and the number of serum immune cells (all R2 > 0.7). The current results showed that high BMI is associated with better prognosis in LSCC patients who received ICIs, which may be related to higher levels of serum immune cells. CI - Copyright (c) 2021 the Author(s). Published by Wolters Kluwer Health, Inc. FAU - Wang, Fei AU - Wang F AD - Department of Oncology, The Rizhao People's Hospital, Rizhao, Shandong, PR China. FAU - Zhou, Lei AU - Zhou L FAU - Chen, Na AU - Chen N FAU - Li, Xiaoming AU - Li X AUID- ORCID: 0000-0001-8262-4105 LA - eng PT - Journal Article PT - Observational Study PL - United States TA - Medicine (Baltimore) JT - Medicine JID - 2985248R RN - 0 (Antineoplastic Agents) RN - 0 (Immune Checkpoint Inhibitors) SB - IM MH - Age Factors MH - Aged MH - Aged, 80 and over MH - Antineoplastic Agents/*therapeutic use MH - Antineoplastic Combined Chemotherapy Protocols/therapeutic use MH - *Body Mass Index MH - CD4 Lymphocyte Count MH - CD4-CD8 Ratio MH - CD8-Positive T-Lymphocytes MH - Carcinoma, Squamous Cell/*drug therapy/mortality/pathology MH - Comorbidity MH - Female MH - Humans MH - Immune Checkpoint Inhibitors/*therapeutic use MH - Lung Neoplasms/*drug therapy/mortality/pathology MH - Male MH - Middle Aged MH - Neoplasm Metastasis MH - Prognosis MH - Sex Factors MH - Survival Analysis PMC - PMC7909129 COIS- The authors have no conflicts of interests to disclose. EDAT- 2021/03/06 06:00 MHDA- 2021/03/17 06:00 PMCR- 2021/02/26 CRDT- 2021/03/05 01:00 PHST- 2020/08/12 00:00 [received] PHST- 2021/01/19 00:00 [accepted] PHST- 2021/03/05 01:00 [entrez] PHST- 2021/03/06 06:00 [pubmed] PHST- 2021/03/17 06:00 [medline] PHST- 2021/02/26 00:00 [pmc-release] AID - 00005792-202102260-00039 [pii] AID - MD-D-20-07766 [pii] AID - 10.1097/MD.0000000000024664 [doi] PST - ppublish SO - Medicine (Baltimore). 2021 Feb 26;100(8):e24664. doi: 10.1097/MD.0000000000024664.