 |
Collected
Data Base for Classification Research*
|
|
|
Institution
|
Number
of Cases
|
|
|
The
University of Texas M. D.
Anderson Cancer Center,
1975-1988*
|
4,351
|
|
|
Reference
Center for Anatomic
and Pathologic Classification
of Lung Cancer, 1977-1982+
|
968
|
|
|
Total
|
5,319
|
* Consecutive patients treated for primary
lung cancer, 1975-1980; surgical patients
only, 1981-1982; consecutive patients (receiving
no previous treatment) treated for non-small
cell lung cancer, 1983-1988. + Patients treated
for primary lung cancer by the National
Cancer Institute Cooperative
Lung Cancer Study Group--representative
slide material and case documentation submitted
to the Reference Center for Anatomic and
Pathologic Classification of Lung Cancer
at the University of Texas M. D. Anderson
Cancer Center for confirmation of staging
and histology. (From Reference 4 with permission).
The
Wilcoxon (Gehan) statistic was used for
comparing the survival experience of
patient groups25. Analysis was carried
out using a software package (Statistical
Program for the Social Sciences; SPSS, Inc; Chicago). The terminal event was
death from cancer or unknown cause; deaths within 30 days of operation were excluded.
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