Table 1 Distributions of the respondents (N = 304)

   39 years or younger

41

   40–49 years

42

   50 years or older

15

   Missing data

2

Sex

   Female

15

   male

85

Fields of practice

   Pediatrics

2

   Family practice

11

   General internal medicine

44

   Specialty internal medicine

21

   Surgery-related

7

   Emergency medicine

9

   The other fields

7

Size of employing facilities

   Office-based clinic

24

   1–100 beds

13

   101–250 beds

17

   251–500 beds

17

   501 or more beds

28