JaLCDOI 10.18926/AMO/43825
FullText URL 65_1_11.pdf
Author Kuwaki, Kenji| Nouso, Kazuhiro| Kobayashi, Yoshiyuki| Nakamura, Shinichiro| Ito, Yoichi M.| Iwadou, Shouta| Hagihara, Hiroaki| Yasunaka, Tetsuya| Toshimori, Junichi| Miyatake, Hirokazu| Miyoshi, Kenji| Onishi, Hideki| Miyake, Yasuhiro| Shoji, Bon| Takaki, Akinobu| Shiraha, Hidenori| Iwasaki, Yoshiaki| Kobashi, Haruhiko| Yamamoto, Kazuhide|
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 21339791
Web of Science KeyUT 000287620500002