PREDICTING THE RESPONSE OF HEAD AND NECK CANCERS TO RADIATION-THERAPY WITH A MULTIVARIATE MODELING SYSTEM - AN ANALYSIS OF THE RTOG HEAD AND NECK REGISTRY
PREDICTING THE RESPONSE OF HEAD AND NECK CANCERS TO RADIATION-THERAPY WITH A MULTIVARIATE MODELING SYSTEM - AN ANALYSIS OF THE RTOG HEAD AND NECK REGISTRY
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DOI:
10.1016/0360-3016(84)90027-0
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发表时间:
1984-01-01
影响因子:
7
通讯作者:
MARCIAL, VA
中科院分区:
文献类型:
--
作者:
GRIFFIN, TW;PAJAK, TF;MARCIAL, VA
Patients (2066) with primary head and neck cancers were entered in the RTOG [Radiation Therapy and Oncology Group] Head and Neck Cancer Registry between 1977 and 1980. Evaluable patients (997) were treated initially with radiation therapy alone. Tumor site, T-stage, N-stage, histology, degree of infiltration, degree of differentiation, patient age, sex and Karnofsky performance score were all prospectively recorded. T-stage (P < 0.001), N-stage (P = 0.007), primary site (P < 0.001) and initial Karnofsky performance score (P < 0.001) were signigicant factors independently predictive of primary tumor clearance. Using these factors, a multivariate response model was constructed to predict primary tumor response. The predictive accuracy of the model proved to be highly reliable, and was tested by comparing the predicted vs. observed complete tumor clearance rates for each independent variable. For primary sites, the predicted number of complete responses vs. observed were: roal cavity, 139.8 predicted vs. 139 observed; nasopharynx, 51.8 predicted vs. 51 observed; oropharynx, 174.8 predicted vs. 176 observed, supraglottic larynx, 314.4 predicted vs. 318 observed; glottic larynx, 314.4 predicted vs. 318 observed and hypopharynx, 49.4 predicted vs. 46 observed. For the entire group of patients predicted to have a 90% or better complete primary tumor response (including T3 and T4 tumors), 94% remained in initial complete remission at the primary site at 1 yr and 87% at 2 yr. An accurate multivariate response model, such as the 1 presented in this paper, should prove to be a useful tool in selecting patients with head and neck cancers suitable for treatment with radiation therapy alone.