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Conditional Survival Estimates Improve Over Time for Patients with Hepatocellular Carcinoma: An Analysis for Nationwide Korea Cancer Registry Database

Authors
 Jae Seung Lee  ;  In Rae Cho  ;  Hye Won Lee  ;  Mi Young Jeon  ;  Tae Seop Lim  ;  Oidov Baatarkhuu  ;  Do Young Kim  ;  Kwang-Hyub Han  ;  Jun Yong Park 
Citation
 CANCER RESEARCH AND TREATMENT, Vol.51(4) : 1347-1356, 2019 
Journal Title
CANCER RESEARCH AND TREATMENT
ISSN
 1598-2998 
Issue Date
2019
Keywords
Carcinoma ; Conditional survival estimate ; Demographic ; Hepatocellular ; Prognosis ; Republic of Korea ; Survival
Abstract
PURPOSE: Conditional survival estimates (CSE) can provide additional useful prognostic information on the period of survival after diagnosis, which helps in counseling patients with cancer on their individual prognoses. This study aimed to analyze conditional survival (CS) for hepatocellular carcinoma (HCC) using a Korean national registry.

Materials and Methods: Patients with HCC, registered in the Korean cancer registry database, were retrospectively reviewed. Overall survival (OS) was calculated using the Kaplan-Meier method. The 1-year CS at X year or month after diagnosis were calculated as CS1=OS(X+1)/OS(X). CS calculations were performed in each Barcelona Clinic Liver Cancer stage, after which patients at stage 0, A, and B underwent subgroup analysis using initial treatment methods.

RESULTS: A total of 4,063 patients diagnosed with HCC from January 2008 to December 2010, and 2,721 who were diagnosed from January 2011 to December 2012, were separately reviewed. In 2008-2010, the 1-year CS of 1, 2, 3, 4, and 5-year survivors was 82.9%, 85.1%, 88.3%, 88.0%, and 88.6%, respectively. Patients demonstrated an increase in CSE over time in subgroup analysis, especially in the advanced stages. In 2011-2012, the 1-year CS of 6, 12, 18, 24, 30, and 36 months was 81.5%, 83.8%, 85.3%, 85.5%, 86.5%, and 88.8%, respectively. The subgroup analysis showed the same tendency towards increased CSE in the advanced stages.

CONCLUSION: Overall, the CS improved with each additional year after diagnosis in both groups. CSE may therefore provide a more accurate prognosis and hopeful message to patients who are surviving with or after treatment.
Files in This Item:
T201903866.pdf Download
DOI
10.4143/crt.2018.477
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Do Young(김도영)
Park, Jun Yong(박준용) ORCID logo https://orcid.org/0000-0001-6324-2224
Lee, Jae Sung(이재성)
Lee, Jae Seung(이재승) ORCID logo https://orcid.org/0000-0002-2371-0967
Lee, Hye Won(이혜원) ORCID logo https://orcid.org/0000-0002-3552-3560
Lim, Tae Seop(임태섭) ORCID logo https://orcid.org/0000-0002-4578-8685
Jeon, Mi Young(전미영) ORCID logo https://orcid.org/0000-0002-3980-4503
Cho, In Rae(조인래)
Han, Kwang-Hyub(한광협) ORCID logo https://orcid.org/0000-0003-3960-6539
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/173071
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