Table 1 Practitioner characteristics

57 (35)

216 (54.0)

p < .001 ^e

127 (79)

89 (85)

p  < .001 ^e

2004: p  < .001 ^b

2014: p < .001 ^b

Post-secondary

Education.

n (%)

BA or BS

109 (81)

359 (76.5)

p = .56^b

120 (87)

139 (90)

p = .42^b

2004: p = .23^b

2014: p < .001^b

MSc or PhD

9 (7)

34 (7.2)

9 (7)

5 (3)

Other

17 (13)

76 (16.2)

9 (7)

10 (7)

41 (9)

44 (11.1)

p < .001 ^c

39 (10)

38 (9)

p = .62^c

2004: p = .16^c

2014: p < .001 ^c

13 (10)

17 (10.9)

p < .001 ^c

8 (7)

9 (7)

p > .99^c

2004: p  < .001 ^c

2014: p < .001 ^c

Size of community of practice.

n (%)

Rural (<10,000)

28 (17)

50 (12.3)

p = .085^b

13 (7)

6 (6)

p = .83^b

2004: p = .15^b

2014: p  = .025 ^b

Small town (10,000–49,999)

28 (17)

76 (18.8)

27 (17)

15 (14)

Medium-sized city (50,000–99,999)

32 (19)

50 (12.3)

33 (20)

22 (20)

Suburban outside a metro area

13 (8)

51 (12.6)

18 (11)

9 (8)

Metropolitan area (>100,000)

70 (41)

178 (44)

78 (48)

56 (52)

29 (9)

1–50

28 (11)

1–65

p = .98^c

24 (10)

1–50

18 (13)

1–44

p < .001 ^c

2004: p  < .001 ^c

2014: p < .001 ^c

131 (81)

1–550

101 (82)

1–600

p < .001 ^c

23 (18)

1–120

18 (24)

1–60

p = .05 ^c

— ^d

Sees pediatric patients. n (%)

146 (89.2)

366 (78.4)

p < .001 ^a

125 (89)

83 (60)

p < .001 ^a

2004: p = .94^a

2014: p  < .001 ^a

2014 only

Sees pediatric patients

yes (n = 366)

no (n = 101)

yes (n = 83)

no (n = 53)

Hours of practice per week. Mean (SD)

29.2 (12.1)

24.6 (13.2)

p = .002 ^c

21.9 (11.8)

15.6 (20.4)

p = .046 ^c

p < .001 ^e

Patients seen per week. Mean (SD)

114.9 (82.1)

51.9 (48.1)

p < .001 ^c

14.6 (25.5)

23.1 (26.5)

p = .06 ^c

— ^d