Maternal prenatal infection and childhood leukaemia: a Childhood Cancer and Leukemia International Consortium (CLIC) meta-analysis.
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Piedvache Aurelie, Rashed Wafaa M, Petridou Eleni Th, Mueller Beth A, Bonaventure Audrey, Clavel Jacqueline, de Smith Adam J, Scheurer Michael E, Dockerty John D, Metayer Catherine, Wiemels Joseph, Kang Alice Y, Heck Julia E, Hansen Johnni, Mejia-Arangure Juan Manuel, Sepúlveda-Robles Omar Alejandro, Pombo-de-Oliveira Maria S, Infante-Rivard Claire, Roman Eve, Erdmann Friederike, Schüz Joachim, Hangai Mayumi, Morisaki Naho, Doody David R, Flores-Lujano Janet, Chow Eric J, Sergentanis Theodoros N, Polychronopoulou Sophia, Spector Logan G, Urayama Kevin Y, NARECHEM-ST
Аннотация
METHODS: Seventeen hospital- and population-based case-control studies of children born in 1972-2019 within the Childhood Cancer and Leukemia International Consortium with self-questionnaires or health-registry data on maternal infection were included (13 638 cases; 26 870 controls). Meta-analyses assessed CL and maternal infection (overall, viral, bacterial, respiratory, influenza/cold, urinary, genital) stratified by subtype, infection timing, race and ethnicity, and diagnosis age.
RESULTS: The adjusted meta-analysis odds ratio (OR) for any maternal prenatal infection was 1.13 [95% confidence interval (CI) 0.91-1.40], with similar estimates for ALL and AML. Infection-specific estimates varied. ORs for first-trimester infections were highest for CL and ALL, but not AML, although all CIs contained one. We found modest risk differences between White and Hispanic/Latino children, most notably for CL diagnosed at <2 years (White children: OR 1.25, 95% CI 1.02-1.53; Hispanic/Latino children: OR 0.79, 95% CI 0.34-1.81, subgroup difference P = .05), with similar differences for viral and respiratory/influenza/cold infections.
CONCLUSION: Although findings only modestly support an association between maternal prenatal infections and CL, some infections might increase the risk more markedly in young White children compared with Hispanic/Latino children. Risk patterns across race and ethnicity, type, and timing of maternal prenatal infection merit further investigation, as do studies with documented exposure information.