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Parental age and the risk of childhood acute myeloid leukemia: results from the Childhood Leukemia International Consortium
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February 15 2019
Source: Cancer Epidemiol. 59:158-165
Details:
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Alternative Title:Cancer Epidemiol
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Description:Background:
Parental age has been associated with several childhood cancers, albeit the evidence is still inconsistent.
Aim:
To examine the associations of parental age at birth with acute myeloid leukemia (AML) among children aged 0-14 years using individual-level data from the Childhood Leukemia International Consortium (CLIC) and non-CLIC studies.
Material/Methods:
We analyzed data of 3182 incident AML cases and 8377 controls from 17 studies [seven registry-based case-control (RCC) studies and ten questionnaire-based case-control (QCC) studies]. AML risk in association with parental age was calculated using multiple logistic regression, meta-analyses, and pooled-effect estimates. Models were stratified by age at diagnosis (infants <1 year-old vs. children 1-14 years-old) and by study design, using five-year parental age increments and controlling for sex, ethnicity, birthweight, prematurity, multiple gestation, birth order, maternal smoking and education, age at diagnosis (cases aged 1-14 years), and recruitment time period.
Results:
Adjusted odds ratios (ORs) and 95% confidence intervals (CIs) derived from RCC, but not from the QCC, studies showed a higher AML risk for infants of mothers ≥40-year-old (OR = 6.87; 95% CI: 2.12-22.25). There were no associations observed between any other maternal or paternal age group and AML risk for children older than one year.
Conclusions:
An increased risk of infant AML with advanced maternal age was found using data from RCC, but not QCC studies; no parental age-AML associations were observed for older children.
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Pubmed ID:30776582
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Pubmed Central ID:PMC7098424
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