Table 1 Baseline covariates of the participants. Abbreviations: IQR = interquartile range, Hosp. 1st level = hospital of first level of care, Rehab.= rehabilitation center, TTE = transthoracic echocardiography

Median

IQR

Age (years)

35

31–42

Experience (years)

5

2–10

Exams per day (n)

4

2–10

Male

Female

Non-binary/other

Not specified

Gender (%)

61.9 (161)

36.9 (96)

0.4 (1)

0.8 (2)

Austria

Germany

Switzerland

Italy

Princ. of Liechtenstein

Country (%)

53.3 (138)

39.8 (103)

6.2 (16)

0.4 (1)

0.4 (1)

Hands-on course

Specialist Cardiology

Specialist Internal medicine

TTE-diploma by society

Other (e.g. Online course)

Education (%)

58.8 (147)

34.8 (87)

33.2 (83)

20.2 (50)

1.5 (2)

Hosp. 3rd level

Hosp. 2nd level

Hosp. 1st level

Doctor’s office

Other (e.g. Rehab. center)

Place of work (%)

39.3 (103)

32.4 (85)

22.9 (60)

1.9 (5)

3.4 (9)

Resident

Senior Physician

Specialist

Head Physician

Intern

Medical Student

Position (%)

40.2 (104)

35.9 (93)

17.0 (44)

3.5 (9)

1.9 (5)

1.5 (4)