RESUMEN
PURPOSE: We analyzed the epidemiologic characteristics of different types of non-Hodgkin Lymphoma (NHL), excluding Burkitt Lymphoma, in 2 Mexican regions with different socioeconomic status. MATERIALS AND METHODS: In this surveillance study, we analyzed the incidence rates (cases per million children/year) of different types of NHL according to the ICCC3, registered in 1996-2015, from 2 different socioeconomic regions in Mexico: central and southern, with higher and lower status, respectively. RESULTS: The principal NHL subgroups were precursor (IIb1), mature B cell (IIb2), mature T/NK cell, and no other specification (NOS; 42.3%, 15.8%, 14.1%, and 27.8%, respectively). In both regions, the overall incidence rates were similar (central=5.3, 95% confidence interval [CI], 4.6-6.1 vs. southern=6.3, 95% CI, 4.6-8.4); also, there were no differences by types (precursor cell LNH, 2.3 vs. 2.5; mature B cell, 0.9 vs. 0.8; mature T/NK cells, 0.8 vs. 0.8; and NOS, 1.4 vs. 2.3). In both regions, a decreasing trend was found (central= -0.17%, 95% CI, -0.03 to -0.3, P=0.04; southern= -0.32%, 95% CI, -0.07 to -0.57, P=0.02), with major reduction of NHL NOS from 1996 to 2000. In both regions, men predominated (2.1:1). CONCLUSIONS: Socioeconomic status did not influence the incidence rates of NHL. In this study, we found a reduction of NHL NOS, possibly due to better typing.
Asunto(s)
Linfoma no Hodgkin/epidemiología , Sistema de Registros , Adolescente , Niño , Preescolar , Femenino , Humanos , Incidencia , Lactante , Masculino , México/epidemiología , Estudios Retrospectivos , Factores SocioeconómicosRESUMEN
OBJECTIVE: To identify the cancer incidence and mortality in Mexican Social Security Institute beneficiary (MSSI-B) children during 1996-2013. MATERIALS AND METHODS: Both cancer cases (n=4 728) and deaths (n=2 378) were analyzed in MSSI-B children who were registered in five states of the Mexican Republic. The incidence and mortality trends and the incidences (rate x 1 000 000 children / year) of the type of cancer, age, sex, and place of residence were obtained. RESULTS: For both indicators (incidence and mortality), there was a downward trend for the period of 1996-2001 and a stable trend for 2002-2013. This occurred in the overall mortality and incidence trends of the Estado de México and Chiapas and in the leukemia and the acute lymphoid subgroups. The annual overall incidence was 128 cases per 1 000 000 children. Leukemia, lymphomas, and central nervous system tumors were the principal cancer groups. CONCLUSIONS: Cancer mortality for the period of 2002-2013 did not diminish. Interinstitutional and/or international research should be designed to improve the care of these children.
Asunto(s)
Neoplasias/epidemiología , Seguridad Social/estadística & datos numéricos , Academias e Institutos/estadística & datos numéricos , Adolescente , Niño , Preescolar , Femenino , Humanos , Lactante , Clasificación Internacional de Enfermedades , Masculino , México/epidemiología , Morbilidad/tendencias , Mortalidad/tendencias , Neoplasias/mortalidad , Estudios Prospectivos , Sistema de RegistrosRESUMEN
Abstract Objective: To identify the cancer incidence and mortality in Mexican Social Security Institute beneficiary (MSSI-B) children during 1996-2013. Materials and methods: Both cancer cases (n=4 728) and deaths (n=2 378) were analyzed in MSSI-B children who were registered in five states of the Mexican Republic. The incidence and mortality trends and the incidences (rate x 1 000 000 children / year) of the type of cancer, age, sex, and place of residence were obtained. Results: For both indicators (incidence and mortality), there was a downward trend for the period of 1996-2001 and a stable trend for 2002-2013. This occurred in the overall mortality and incidence trends of the Estado de México and Chiapas and in the leukemia and the acute lymphoid subgroups. The annual overall incidence was 128 cases per 1 000 000 children. Leukemia, lymphomas, and central nervous system tumors were the principal cancer groups. Conclusions: Cancer mortality for the period of 2002-2013 did not diminish. Interinstitutional and/or international research should be designed to improve the care of these children.
Resumen Objetivo: Mostrar la incidencia y mortalidad por cáncer en niños derechohabientes del Instituto Mexicano del Seguro Social (DH-IMSS) (periodo 1996-2013). Material y métodos: Se analizaron los casos (n=4 728) y las muertes (n=2 378) por cáncer en niños DH-IMSS registrados en cinco estados de la República mexicana. Se obtuvo la tendencia de la incidencia y mortalidad y la incidencia por tipo de cáncer, edad, sexo y lugar de residencia. Resultados: Para ambos indicadores (incidencia y mortalidad) hubo tendencia a la disminución para el periodo 1996-2001 y estabilidad para 2002-2013; esto sucedió para la tendencia global, para el Estado de México y Chiapas, para las leucemias y para el subgrupo de las linfoide agudas. La incidencia global fue de 128 x 1 000 000 niños/año; las leucemias, tumores del sistema nervioso central y linfomas fueron los principales grupos de cáncer. Conclusiones: La mortalidad por cáncer para el periodo 2002-2013 no ha disminuido; deben diseñarse investigaciones interinstitucionales e internacionales para mejorar la atención médica de estos niños.