Table 1 Demographic data of the participants

Number

N = 21

N = 2

Gender

Male/Female = 15/6

Male/Female = 1/1

Hospital type

Primary care centres: 1

Secondary tertiary care hospitals: 20

Secondary and tertiary care hospitals: 2

Geographical location

Berlin: 4

Bielefeld: 5

Brandenburg: 2

Herford: 6

Leipzig: 1

Osterode am Harz: 2

Stralsund: 1

Berlin: 1

Herford: 1

Specialty

Anaesthesia: 4

Cardiology: 2

ENT^a: 2

Gastroenterology and endoscopy: 1

General medicine: 3

General surgery: 1

Internal medicine: 1

Orthopaedic surgery: 1

Paediatrics: 1

Radiology: 2

Neurology: 3

Radiology: 1

Cardiology: 1

Country of origin

Algeria: 1

Egypt: 11

Jordan: 3

Sudan: 1

Syria: 4

Yemen: 1

Palestine: 1

Iran: 1

Age range

28–41 years

54–69 years

Time spent in Germany

1–7 years

7–39 years