Table 1 Demographic and clinical characteristics of the four severity groups based on CIDI.

Female (%)

47.9_a

53.9_a,b

60.1_b

60.2_b

3

χ = 14.7

0.002

Age (M ± SD)

18.52_a (0.61)

18.51_a (0.62)

18.57_a (0.60)

18.58_a (0.65)

3

F = 1.0

0.384

Lowest 25% SES

16.5_a

24.9_a,b

28.4_b

29.1_b

6

χ = 23.3

P < 0.001

Middle 50% SES

53.0_a

49.2_a

49.8_a

51.9_a

Highest 25% SES

30.5_a

25.9_a,b

21.8_a,b

19.0_b

Anxiety disorders

68.5^#

53.7

57.0

58.4

Attention Deficit Hyperactivity Disorder

0.8^#

4.4

6.9

15.8

Disruptive disorders

28.5^#

28.8

15.8

13.5

Mood disorders

25.4^#

31.2

22.3

40.9

Substance use disorders

18.3^#

4.9

16.2

15.2

Comorbidity > 1 subthreshold or threshold diagnosis (%)

44.1

27.8

35.0

46.5

Adult Self Report total score (M ± SD)

25.02 (16.97)

34.90 (22.13)

42.6 (24.60)

51.9 (27.33)

3

F = 99.2

P < 0.001

Clinical range (%)

4.5_a

13.2_b

20.3_b

30.0_c

6

χ = 155.6

P < 0.001

Borderline range (%)

6.5_a

12.7_b

12.4_b

20.1_b

Healthy range (%)

89.0_a

74.1_b

67.4_b

49.8_c

Core depression

0.59_a (1.02)

0.89 _b (1.13)

1.16_b (1.34)

1.61_c (1.53)

3

F = 44.0

P < 0.001

Negative cognitions about oneself

0.87_a (1.22)

1.44_b (1.57)

1.71_b (1.78)

2.34_c (2.05)

3

F = 53.1

P < 0.001

Fatigue

0.74_a (1.04)

1.00_a (1.07)

1.32_b (1.23)

1.68_c (1.32)

3

F = 44.0

P < 0.001

Fearfulness

0.54_a (0.77)

0.78_b (0.94)

0.92_b (0.94)

1.22_c (1.16)

3

F = 34.4

P < 0.001

Medically unexplained pain

0.27_a (0.79)

0.39_a (1.07)

0.74_b (1.43)

1.10_c (1.47)

3

F = 34.5

P < 0.001

Worrying

2.04_a (1.70)

2.69_b (1.84)

3.00_b (1.91)

3.73_c (2.01)

3

F = 54.4

P < 0.001

Impulsivity

1.07_a(1.19)

1.49_b(1.35)

1.69_b,_c(1.48)

1.96_c(1.51)

3

F = 30.1

P < 0.001

Attention problems

3.40_a (2.18)

3.88 _a (2.21)

4.77 _b(2.54)

5.40 _c(2.59)

3

F = 50.7

P < 0.001

Hyperactivity/restlessness

1.15_a (1.12)

1.60_b (1.40)

1.90_b,c (1.39)

2.17_c (1.55)

3

F = 41.8

P < 0.001

Emotion dysregulation

0.83_a (1.06)

1.19_b (1.29)

1.39_b (1.34)

1.67_c (1.37)

3

F = 31.2

P < 0.001

Substance use

0.55_a (0.82)

0.65_a,b (0.88)

0.83_b (1.03)

0.76_b (1.0)

3

F = 6.5

P = 0.001

0

41.7_a

50.6_a

45.0_a

46.4_a

6

χ = 13.3

P = 0.04

1

26.6_a

17.1_b

24.4_a,b

18.2_b

2 or more

31.7_a

32.2_a

30.6_a

35.4_a