Prevalence and associated factors of viral hepatitis and transferrin elevations in 5036 patients admitted to the emergency room of a Swiss university hospital: cross-sectional study

Table 1 Study-specific patient questionnaire

Questions	Answer options
Have you been vaccinated against hepatitis B ?	Yes/No/I don't know
Do you have any known hepatitis B infection ?	Yes/No
Do you have any known hepatitis C infection ?	Yes/No
Have you ever had a yellowing of the skin (known as jaundice) ?	Yes/No
Have you ever had a blood transfusion ?	Yes/No, if yes until/after 1990 ?
Do you have a tattoo ?	Yes/No
Do you have any piercing ?	Yes/No
Do you drink alcohol ?	Never/1–10/>10 glasses/week
Have you ever taken illegal intravenous drugs ?	Yes/No
Do you live with a partner in a steady relationship ?	Yes/No
Do you work in the public health services with patient contact ?	Yes/No
Have you been suffering from stomach aches without clear cause ?	Yes/No
Have you been suffering from tiredness without clear cause ?	Yes/No
Have you been suffering from muscle pains without clear cause ?	Yes/No
Have you been suffering from joint pains without clear cause ?	Yes/No
What is your ethnic origin ?	White/Black/Asiatic/other, mixed
Were you born in Switzerland ?	Yes/No, if no specifiy:
Do you permanently reside in Switzerland ?	Yes/No, if no specifiy:

ISSN: 1471-230X