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Table 2 Participant characteristics presented with number of participants (percentage per study [%]) and means (standard deviation [SD])

From: Using incentives to recruit physicians into behavioral trials: lessons learned from four studies

Variable

Overall (N = 674)

Study 1 development of vignette-based questionnaire (n = 168)

Study 2 validation of vignette-based questionnaire

Study 3 development and validation of a virtual simulation (n = 142)

Study 4 testing the efficacy of a video game to reduce diagnostic error among physicians (n = 295)

a Retest reliability (n = 32)

b Known groups (n = 28)

c External validity (n = 28)

Age, mean (SD)

41 (9.5)

42 (9.6)

43 (8.7)

44 (6.9)

47 (8.8)

43 (10.7)

40 (8.9)

Male, n (%)

511 (76)

141 (84)

26 (81)

21 (75)

19 (68)

112 (79)

192 (65)

Race, n (%)

 White

503 (75)

127 (76)

27 (84)

20 (71)

23 (82)

105 (74)

201 (68)

 Black

21 (3)

8 (5)

0 (0)

0 (0)

 

3 (2)

10 (3)

 Asian

95 (14)

20 (12)

4 (13)

3 (11)

5 (19)

18 (13)

50 (17)

 Latino

38 (6)

9 (5)

0 (0)

0 (0)

 

6 (4)

23 (8)

 Native American or Pacific Islander

10 (1)

3 (2)

0 (0)

0 (0)

 

2 (1)

5 (2)

 Other

21 (3)

1 (1)

1 (3)

2 (7)

 

8 (6)

8 (3)

Primary specialty

 Emergency Medicine

625 (93)

157 (93)

30 (94)

–

20 (71)

135 (95)

283 (96)

 Family Practice/Internal Medicine

36 (5)

10 (5)

1 (3)

–

8 (29)

7 (5)

10 (4)

 Trauma Surgery

28 (4)

–

–

28 (100)

–

–

–

 Other

5 (1)

1 (1)

1 (3)

–

–

–

3 (1)

Years experience, mean (SD)

10.1 (9.2)

11.8 (9.2)

12 (8.9)

11.3 (7)

16 (9.8)

11.1 (10.6)

8.4 (8.5)

ATLS certified, n (%)

512 (76)

125 (74)

20 (63)

28 (100)

19 (68)

113 (80)

207 (70)

Physician also works at a Level I/II trauma center, n (%)

112 (17)

14 (8)

6 (18)

28 (100)

0 (0)

28 (20)

36 (12)