Influence of morphology on survival for non-Hodgkin lymphoma in Europe and the United States.
We explored the influence of morphology on geographic differences in 5-year survival for non-Hodgkin lymphoma (NHL) diagnosed in 1990-1994 and followed for 5years: 16,955 cases from 27 EUROCARE-3 cancer registries, and 22,713 cases from 9 US SEER registries. Overall 5-year relative survival was 56.1% in EUROCARE west, 47.1% in EUROCARE east and 56.3% in SEER. Relative excess risk (RER) of death was 1.05 (95% confidence interval (CI) 1.01-1.10) in EUROCARE west, 1.52 (95% CI 1.44-1.60) in EUROCARE east (SEER reference). Excess risk of death was significantly above reference (diffuse B lymphoma) for Burkitt's and NOS lymphoma; not different for lymphoblastic and other T-cell; significantly below reference (in the order of decreasing relative excess risk) for NHL NOS, mantle cell/centrocytic, lymphoplasmacytic, follicular, small lymphocytic/chronic lymphocytic leukaemia, other specified NHL and cutaneous morphologies. Interpretation of marked variation in survival with morphology is complicated by classification inconsistencies. The completeness and standardisation of cancer registry morphology data needs to be improved.
Sant
Milena
M
Department of Preventive and Predictive Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Venezian 1, I-20133, Milan, Italy.
Allemani
Claudia
C
De Angelis
Roberta
R
Carbone
Antonino
A
de Sanjosè
Silvia
S
Gianni
Alessandro M
AM
Giraldo
Pilar
P
Marchesi
Francesca
F
Marcos-Gragera
Rafael
R
Martos-Jiménez
Carmen
C
Maynadié
Marc
M
Raphael
Martine
M
Berrino
Franco
F
D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D002675:Child, Preschool; D005060:Europe; D005240:Feasibility Studies; D006801:Humans; D007223:Infant; D008228:Lymphoma, Non-Hodgkin / Q000145:classification / Q000401:mortality* / Q000473:pathology; D008875:Middle Aged; D011379:Prognosis; D012042:Registries / Q000592:standards*; D014481:United States