{"title":"Cause-Specific Mortality and Prognostic Impact of Comorbidity in Japanese Patients With Chronic Lymphocytic Leukemia","authors":"Daisuke Ikeda, Takuya Nunomura, Tsuyoshi Muta, Kosei Matsue","doi":"10.1002/cam4.70613","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <h3> Background</h3>\n \n <p>Due to its rarity, there are very limited data available on the cause of death (COD) and its association with comorbidities in Japanese chronic lymphocytic leukemia (CLL) patients.</p>\n </section>\n \n <section>\n \n <h3> Methods</h3>\n \n <p>To investigate the prevalence of comorbidities and their impact on cause-specific mortality, we retrospectively reviewed 121 Japanese patients with CLL.</p>\n </section>\n \n <section>\n \n <h3> Results</h3>\n \n <p>The median age was 69 years, with 47.9% having at least one comorbidity listed in the Charlson Comorbidity Index (CCI), and 12.4% were multimorbid. With a median follow-up of 74 months, the 5- and 10-year overall survival rates were 80.6% and 60.1%, respectively. Among the 44 deaths observed, CLL progression was the leading COD (38.6%), which together with infections and other malignancies accounted for nearly 80%. Patients with higher CCI risk categories had significantly higher 5-year all-cause mortality (CCI 1–2: 22.9% and ≥ 3: 31.4%) and non-CLL-specific mortality (CCI 1–2: 18.8% and ≥ 3: 31.4%) compared to those without (CCI 0: 12.6%, <i>p</i> = 0.005; 3.5%, <i>p</i> < 0.001, respectively), whereas CLL-specific mortality was not influenced. On multivariate analysis, age and CCI retained a significant prognostic impact on all-cause mortality (hazard ratio [HR] 1.08, <i>p</i> < 0.001 and HR 1.88, <i>p</i> = 0.004, respectively) and non-CLL-specific mortality (HR 1.12, <i>p</i> < 0.001 and HR 3.81, <i>p</i> < 0.001, respectively).</p>\n </section>\n \n <section>\n \n <h3> Conclusions</h3>\n \n <p>Our study showed that CLL itself was the leading COD, and comorbidity burden was associated with non-CLL-specific deaths. This highlights the importance of better disease control and effective management of comorbidities.</p>\n </section>\n </div>","PeriodicalId":139,"journal":{"name":"Cancer Medicine","volume":"14 3","pages":""},"PeriodicalIF":3.1000,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11773378/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cancer Medicine","FirstCategoryId":"3","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/cam4.70613","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ONCOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Background
Due to its rarity, there are very limited data available on the cause of death (COD) and its association with comorbidities in Japanese chronic lymphocytic leukemia (CLL) patients.
Methods
To investigate the prevalence of comorbidities and their impact on cause-specific mortality, we retrospectively reviewed 121 Japanese patients with CLL.
Results
The median age was 69 years, with 47.9% having at least one comorbidity listed in the Charlson Comorbidity Index (CCI), and 12.4% were multimorbid. With a median follow-up of 74 months, the 5- and 10-year overall survival rates were 80.6% and 60.1%, respectively. Among the 44 deaths observed, CLL progression was the leading COD (38.6%), which together with infections and other malignancies accounted for nearly 80%. Patients with higher CCI risk categories had significantly higher 5-year all-cause mortality (CCI 1–2: 22.9% and ≥ 3: 31.4%) and non-CLL-specific mortality (CCI 1–2: 18.8% and ≥ 3: 31.4%) compared to those without (CCI 0: 12.6%, p = 0.005; 3.5%, p < 0.001, respectively), whereas CLL-specific mortality was not influenced. On multivariate analysis, age and CCI retained a significant prognostic impact on all-cause mortality (hazard ratio [HR] 1.08, p < 0.001 and HR 1.88, p = 0.004, respectively) and non-CLL-specific mortality (HR 1.12, p < 0.001 and HR 3.81, p < 0.001, respectively).
Conclusions
Our study showed that CLL itself was the leading COD, and comorbidity burden was associated with non-CLL-specific deaths. This highlights the importance of better disease control and effective management of comorbidities.
期刊介绍:
Cancer Medicine is a peer-reviewed, open access, interdisciplinary journal providing rapid publication of research from global biomedical researchers across the cancer sciences. The journal will consider submissions from all oncologic specialties, including, but not limited to, the following areas:
Clinical Cancer Research
Translational research ∙ clinical trials ∙ chemotherapy ∙ radiation therapy ∙ surgical therapy ∙ clinical observations ∙ clinical guidelines ∙ genetic consultation ∙ ethical considerations
Cancer Biology:
Molecular biology ∙ cellular biology ∙ molecular genetics ∙ genomics ∙ immunology ∙ epigenetics ∙ metabolic studies ∙ proteomics ∙ cytopathology ∙ carcinogenesis ∙ drug discovery and delivery.
Cancer Prevention:
Behavioral science ∙ psychosocial studies ∙ screening ∙ nutrition ∙ epidemiology and prevention ∙ community outreach.
Bioinformatics:
Gene expressions profiles ∙ gene regulation networks ∙ genome bioinformatics ∙ pathwayanalysis ∙ prognostic biomarkers.
Cancer Medicine publishes original research articles, systematic reviews, meta-analyses, and research methods papers, along with invited editorials and commentaries. Original research papers must report well-conducted research with conclusions supported by the data presented in the paper.