1979
DOI: 10.1002/1097-0142(197902)43:2<544::aid-cncr2820430221>3.0.co;2-p
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Eastern cooperative oncology group experience with the rappaport classification of non-Hodgkin's lymphomas

Abstract: Eastern Cooperative Oncology Group experience in the clinical application of the Rappaport Classification on Non-Hodgkin's lymphomas (NHL) is reviewed in 670 cases studied since 1972. The diagnoses of institutional pathologists were reviewed by the Pathology Panel and Repository Center for Lymphoma Clinical Studies. Diagnostic agreement in regard to histologic pattern (nodular versus diffuse) was excellent (90%) but was less favorable when concurrence as to both pattern and cell type was assessed (82% in NLDP … Show more

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Cited by 43 publications
(5 citation statements)
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“…Thus, there was a 55% agreement level between contributor and panel in a large British review of 1200 non-Hodglun's lymphomas' and a 66% agreement level in a review of 670 cases from the Eastern Cooperative Oncology Group (ECOG). 2 The results of our study ( Table 2) are similar; there was a 51% agreement rate between the contributing pathologist and the panel diagnosis and a 20% major disagreement rate. These levels of interobserver agreement can be subjected to a statistical test yielding a kappa statistic between -1 and + 1 .'…”
Section: Discussionsupporting
confidence: 69%
“…Thus, there was a 55% agreement level between contributor and panel in a large British review of 1200 non-Hodglun's lymphomas' and a 66% agreement level in a review of 670 cases from the Eastern Cooperative Oncology Group (ECOG). 2 The results of our study ( Table 2) are similar; there was a 51% agreement rate between the contributing pathologist and the panel diagnosis and a 20% major disagreement rate. These levels of interobserver agreement can be subjected to a statistical test yielding a kappa statistic between -1 and + 1 .'…”
Section: Discussionsupporting
confidence: 69%
“…The difference in survival between the two groups was significant (p = 0-012). Mean survival for patients with L-DNA lymphomas was 813 (CI 69-5-93-1, median 98) months, and for those with H-DNA 18-5 (CI 14-7-22-3, median 19) months (fig 2). The difference was highly significant (p = 0-0001).…”
Section: Resultsmentioning
confidence: 97%
“…Incluso entre patólogos expertos existe una sorprendente discordancia de diagnósticos, como prueban los estudios de los mayores grupos de trabajo sobre LNH (11): El Southwest Oncology Group -SWOG- (16)(17), el Southeastern Cancer Study Group (18) y el Eastern Oncology Group -ECOG- (19). En estos grupos la concordancia de diagnósti-cos varió ampliamente, entre el 86 y el 53% (20).…”
Section: Discussionunclassified
“…De los diferentes subtipos en los que se divide esta clasificación, hemos encontrado una mayor frecuencia de casos pertenecientes a los tipos: linfoma difuso de células grandes, linfoma linfocítico de células pequeñas (LLC), linfoma plasmocitoide y linfoma centrofolicular (11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22).…”
Section: Discussionunclassified