Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea.
© Copyright 2014. Korean Association for the Study of Intestinal Diseases. All rights reserved.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Financial support: This study was supported by grant No. 04-2009-4659 from the Seoul National University Hospital research fund.
Conflict of interest: None.
Risk Stratification of Primary Gastrointestinal Stromal Tumors (GISTs) under the National Institutes of Health (NIH) Criteria and Modified NIH Criteria
*The presence of tumor rupture was added to the modified NIH criteria as a poor prognostic factor.
HPF, high-power field.
Clinicopathological Characteristics of the Present Study Population according to the Tumor Site
Values are presented as mean±SD or n (%).
HPF, high-power field.
Risk Stratification according to the National Institutes of Health (NIH) Criteria and Modified NIH Criteria and Recurrence in the Subgroup under the NIH and Modified NIH Criteria
Values are presented as mean±SD or n (%).
Prediction Factors for Recurrence-Free Survival
*P-values were calculated with the Log-rank test.
†P-values were calculated with the Cox regression hazard model.
‡Available cases only.
RFS, recurrence-free survival; HR, hazard ratio; HPF, high-power field.
*The presence of tumor rupture was added to the modified NIH criteria as a poor prognostic factor. HPF, high-power field.
Values are presented as mean±SD or n (%). HPF, high-power field.
Values are presented as mean±SD or n (%).
* † ‡Available cases only. RFS, recurrence-free survival; HR, hazard ratio; HPF, high-power field.