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ID 43825
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Author
Kuwaki, Kenji
Kobayashi, Yoshiyuki
Ito, Yoichi M.
Iwadou, Shouta
Hagihara, Hiroaki
Yasunaka, Tetsuya
Toshimori, Junichi
Miyatake, Hirokazu
Miyoshi, Kenji
Onishi, Hideki
Miyake, Yasuhiro
Shoji, Bon
Shiraha, Hidenori
Iwasaki, Yoshiaki ORCID Kaken ID researchmap
Kobashi, Haruhiko
Abstract
The purpose of this study was to build a prognostic model of hepatocellular carcinoma (HCC) using time-dependent covariates to re-evaluate the prognosis at any stage of the disease. The subjects were consecutive HCC patients who were treated at our institute between 1995 and 2007. We constructed time-fixed and time-dependent prognostic models with a training group (n=336) and compared the prognostic abilities between conventional Cancer of the Liver Italian Program (CLIP) scores, Japan Integrated Staging (JIS) scores, an Okuda classification, and our prognostic models in the testing group (n=227) with the c-index. The time-dependent prognostic model consisted of main tumor size, tumor number, portal vein invasion, distant metastasis, alpha-fetoprotein, des-gamma-carboxy prothrombin (DCP), bilirubin, and albumin and the weighted scores were set for each factor depending on the hazard ratio for the prognosis. The prognostic index was determined by summing the scores. The c-index values for the CLIP scores, JIS scores, Okuda classification, and our time-dependent model were 0.741, 0.727, 0.609, and 0.870, respectively. These results indicate that our time-dependent model can estimate the prognosis of HCC more precisely than traditional time-fixed models and can be used to re-predict the prognosis of HCC.
Keywords
hepatocellular carcinoma
humans
prognosis
proportional hazards models
time factors
Amo Type
Original Article
Published Date
2011-02
Publication Title
Acta Medica Okayama
Volume
volume65
Issue
issue1
Publisher
Okayama University Medical School
Start Page
11
End Page
19
ISSN
0386-300X
NCID
AA00508441
Content Type
Journal Article
language
英語
Copyright Holders
CopyrightⒸ 2011 by Okayama University Medical School
File Version
publisher
Refereed
True
PubMed ID
Web of Science KeyUT