Concordance in survival among first-degree relatives diagnosed with indolent lymphoid malignancies including chronic lymphocytic leukemia.
Eur J Haematol
; 105(6): 779-785, 2020 Dec.
Article
em En
| MEDLINE
| ID: mdl-32871627
ABSTRACT
OBJECTIVES:
To investigate concordance in survival time among first-degree relatives with lymphoid malignancies.METHODS:
By linkage of national Swedish registers, we identified 66 430 patients diagnosed with a lymphoid malignancy 1958-2016 with information on first-degree relationships and follow-up until 2017. Among these, we identified pairs of first-degree relatives with any (N = 3326) or a similar (N = 690) lymphoid malignancy subtype. We defined survival in the first-degree relative as good, expected, or poor based on tertiles of deviance residuals from a multivariable Cox regression model. Next, we used Cox regression to estimate hazard ratios (HR) of death with 95% confidence intervals (CI) among patients, using the survival of their first-degree relative as exposure and adjusting for confounders.RESULTS:
There was no concordance in survival among first-degree relatives with any lymphoid malignancy (HRgood = 1.00 (reference), HRExpected = 1.02, 95% CI 0.89-1.17, HRPoor = 1.12, 95% CI 0.98-1.27, Ptrend = .08). Among first-degree relatives with indolent lymphoma, including chronic lymphocytic leukemia, those with a first-degree relative to an expected or poor survival had worse outcome compared to those with a first-degree relative with good survival (HRExpected = 1.44, 95% CI 0.82-2.53, HRPoor = 1.79, 95% CI 1.07-3.00, Ptrend = .03).CONCLUSION:
Our results support a role of inherited factors in the outcome of indolent lymphoma, including chronic lymphocytic leukemia.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Leucemia Linfocítica Crônica de Células B
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Núcleo Familiar
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Transtornos Linfoproliferativos
Tipo de estudo:
Diagnostic_studies
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Observational_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Adolescent
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Adult
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Aged
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Aged80
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Child
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Child, preschool
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Female
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Humans
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Infant
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Male
País/Região como assunto:
Europa
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article