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. 2023 Oct 18;23:1001. doi: 10.1186/s12885-023-11288-1

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© The Author(s) 2023

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

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Fig. 6 — Kaplan-Meier survival curves for different clinical subgroups. including different ages (≤65 and >65), different genders, and different grades and stages. Survival curves for patients ≤65, P<0.01 (A). Survival curves for patients >65 years of age, P<0.001 (B). Survival curve of male patients, P<0.001 (C). Survival curve of female patients, P=0.012 (D). Survival curves for grade G1-2 patients, p<0.001 (E). Survival curves for grade G3-4 patients, p=0.182 (F). Survival curves for staged I-II patients,P=0.001 (G). Survival curves for staged III-IV patients, P=0.009 (H)