Allergies and Childhood Acute Lymphoblastic Leukemia: A Case-Control Study and Meta-analysis.
Allergies and Childhood Acute Lymphoblastic Leukemia: A Case-Control Study and Meta-analysis.
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DOI:
10.1158/1055-9965.epi-17-0584
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发表时间:
2018-10
期刊:
影响因子:
--
通讯作者:
Metayer C
中科院分区:
文献类型:
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作者:
Wallace AD;Francis SS;Ma X;McKean-Cowdin R;Selvin S;Whitehead TP;Barcellos LF;Kang AY;Morimoto L;Moore TB;Wiemels JL;Metayer C
Allergic disease is suspected to play a role in the development of childhood acute lymphoblastic leukemia (ALL). Studies conducted over the last several decades have yielded mixed results. We examined the association between allergy, a common immune-mediated disorder, and ALL in the California Childhood Leukemia Study (CCLS), a case-control study of 977 children diagnosed with ALL and 1037 matched controls (1995–2015). History of allergies in the first year of life was obtained from interviews, mainly reported by mothers. Logistic regression analyses were conducted to estimate odds ratios (ORs) and 95% confidence intervals (CIs), controlling for birth order, day care attendance, and mode of delivery. In addition, we conducted meta-analyses with data from the CCLS and 12 published studies and employed a new method to estimate between-study heterogeneity (R_b). Overall, no associations were observed between childhood ALL risk and specific allergy phenotypes or any allergy, as a group. However, having any allergy was associated with an increased risk of ALL among the youngest study participants. In the meta-analysis random-effect models, a reduced odds of ALL was associated with hay fever (metaOR=0.65, 95% CI: 0.47, 0.90); however, restricting the analysis to studies that used medical records for assessment of allergy or recently published studies, led to null or attenuated results. Overall, our findings do not support a clear association between allergy and childhood ALL. The degree to which epidemiological studies can inform the relationship between allergies and risk of childhood ALL is limited by between-study heterogeneity.