Table 1 Selected characteristics of study participants

IDI1

Female

63

1

3^c

General medical

IDI2

Male

43

1

26^c

Cardiology

IDI3

Female

56

5

198^c

Renal

IDI4

Female

59

4

985^c

Cardiology

IDI5

Male

56

1

8^c

Gastroenterology

NDI1

Male

43

1

9

General medical

NDI2

Female

40

1

276

Endocrinology

NDI3

Male

45

1

45^c

Renal

NDI4

Female

42

1

1

Cardiology

NDI5

Male

45

1

1

Colorectal

NDI6

Male

52

1

1

Orthopaedic