Family Characteristics as Risk Factors for Childhood Acute Lymphoblastic Leukemia: A Population-Based Case-Control Study

• Martin Feller ,

  Contributed equally to this work with: Martin Feller, Martin Adam

  Affiliation Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland

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• Martin Adam ,

  Contributed equally to this work with: Martin Feller, Martin Adam

  Affiliations Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland, Swiss Tropical and Public Health Institute, Department of Epidemiology and Public Health, Basel, Switzerland, University of Basel, Basel, Switzerland

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• Marcel Zwahlen,

  Affiliation Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland

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• Pierluigi Brazzola,

  Affiliation Ospedale Regionale di Bellinzona e Valli–Bellinzona, Bellinzona, Switzerland

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• Felix Niggli,

  Affiliation Pediatric Oncology Unit, University Children's Hospital Zürich, Zürich, Switzerland

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• Claudia Kuehni ,

  * E-mail: kuehni@ispm.unibe.ch

  Affiliation Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland

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• for the Swiss Pediatric Oncology Group (SPOG) and the Swiss National Cohort (SNC)