Consider the case-control study below to answer Questions 6 and 7

Maternal coffee and alcohol consumption during pregnancy, parental smoking and risk of childhood leukemia

Florence Menegaux et al. Cancer Detection and Prevention 29 (2005) 487-493. Accessed from PubMed.gov

We investigated the role of maternal alcohol and coffee drinking and parental

smoking on the risk of childhood acute leukemia in a multicenter case-control study. Methods: The study

included 280 incident cases and 288 hospitalized controls, frequency matched with the cases by age,