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Table 1 Description of Sample: Means and Standard Deviationsa

From: Cognition in anxious children with attention deficit hyperactivity disorder: a comparison with clinical and normal children

 

Anxiety Only (n = 52)

Comorbid for ADHD* (n = 35)

ADHD Only (n = 21)**

Normal Controls (n = 35)

Total (n = 143)

Age in Years

9.42 (1.23)

9.82 (1.27)

9.60 (1.43)

9.71 (1.32)

9.61 (1.28)

Socioeconomic Status (Hollingshead Index [54])

48.45 (12.21)

46.56 (15.46)

44.22 (18.36)

53.92 (8.85)

48.19 (13.61)

Gender (% Males)

66%

74%

81%

63%

69%

Handedness (% Right vs. Left/Mixed)

67%

53%

70%

74%

64%

DSM-IV Conners' ADHD Symptom Index (t-score) Mother

57.08 (11.09)

69.00 (12.63)

69.80 (7.00)

49.50 (7.67)3

58.86 (12.81)

Report Teacher Report (n = 69)

55.15 (12.35)

61.11 (18.81)

74.33 (11.68)

50.08 (5.87)2

56.01 (14.60)

Multidimensional Anxiety Scale for Children (t-score)

53.12 (1.08)

54.97 (13.24)

50.10 (11.00)

46.23(10.09)2

51.52 (11.82)

  1. a standard deviations are shown in brackets; 1 p < .05, 2 p < .01, 3 p < .001
  2. * 19 Inattentive Type; 16 Combined Type
  3. ** 11 Inattentive Type; 10 Combined Type