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Table 1 Study Sample

From: Cognitive, emotional, and social functioning of preschoolers with attention deficit hyperactivity problems

  TDC w/ impairm. w/o impairm. Total
Diagnostic group
 ADHD 168 (62%) 51 (29%) 219 (18.5%)
 BEH 42 (15.5%) 25 (14.2%) 67 (5.7%)
 ANX 37 (13.7%) 37 (21%) 74 (6.2%)
 LNG 24 (8.9%) 63 (35.8%) 87 (7.3%)
 TDC 737 (100%) 737 (62.2%)
Gender
 boy 353 (47.9%) 154 (56.8%) 111 (63.1%) 618 (52.2%)
 girl 384 (52.1%) 117 (43.2%) 65 (36.9%) 566 (47.8%)
Age (months)
 Mean (SD) 41.7 (1.3) 41.7 (1.3) 41.7 (1.3) 41.7 (1.3)
Maternal education
 Elem., HS 161 (22.2%) 105 (39.5%) 60 (34.5%) 326 (28%)
 Bachelor 330 (45.5%) 101 (38%) 66 (37.9%) 497 (42.7%)
 Master 234 (32.3%) 60 (22.6%) 48 (27.6%) 342 (29.4%)
  1. Note. Fig. S2 shows all observed combinations of mental health problems
  2. ANX anxiety, BEH behaviour problems, LNG language problems