Demographic characteristics of the study population in a case control study of risk factors for non-pregnancy associated listeriosis in Germany, 2012–2013.

a mutual exclusive categoriesb diabetes, renal disease, liver disease, autoimmune disorder, hematological cancer (within last 5 years), solid organ transplantation and/or splenectomyc chemotherapy, radiation therapy, hemodialysis and/or immunosuppressive medication (all within the last 3 months)* χ2 testDemographic characteristics of the study population in a case control study of risk factors for non-pregnancy associated listeriosis in Germany, 2012–2013.