Diagnostic category | Diagnoses in full sample [count (%)] | DSM-5 diagnoses by time of xyy diagnosis [n (%)] | Test for statistically-significant difference | |||
---|---|---|---|---|---|---|
 | DSM-5 by K-SADS |  |  |  |  |  |
 | Ever met strict criteria | Ever met screening criteria | Prenatal (n = 25) | Postnatal (n = 39) | X^2 | p |
Neurodevelopmental disorders | ||||||
  Autism spectrum disorder | 9 (14) | 9 (14) | 2 (8) | 7 (18) | 0.56 | 0.45 |
  Attention-deficit hyperactivity disorder | 43 (67) | 50 (78) | 17 (68) | 26 (67) | 0 | 1 |
  Tic disorder | 10 (15) | 14 (22) | 1 (4) | 9 (23) | 2.88 | 0.09 |
  Obsessive–compulsive spectrum disorder | 2 (3) | 5 (8) | - | 2 (5) | 0.17 | 0.68 |
  Any of the above | 50 (78) | 58 (91) | 18 (72) | 32 (82) | 0.41 | 0.52 |
Elimination disorders | ||||||
  Enuresis | 20 (30) | 20 (30) | 9 (36) | 11 (28) | 0.14 | 0.71 |
  Encopresis | 4 (< 1) | 4 (< 1) | 1 (4) | 3 (8) | 0.004 | 0.94 |
  Any of the above | 21 (32) | 21 (32) | 9 (36) | 12 (31) | 0.03 | 0.87 |
Mood disorders | ||||||
  Bipolar disorder | - | 3 (5) | - | - | NA | NA |
  Depressive disorder | 5 (8) | 12 (19) | 3 (12) | 2 (5) | 0.27 | 0.6 |
  Disruptive mood dysregulation disorder | 6 (9) | 9 (14) | 2 (8) | 4 (10) | 0 | 1 |
  Any of the above | 10 (16) | 20 (31) | 5 (20) | 5 (13) | 0.18 | 0.68 |
  Anxiety disorders | 6 (9) | 19 (30) | 1 (4) | 5 (13) | 0.56 | 0.46 |
Trauma- and stress-related disorders | ||||||
  Reactive attachment disorder | - | - | - | - | NA | NA |
  Posttraumatic stress disorder | 1 (2) | 1 (2) | - | 1 (3) | 0 | 1 |
  Any of the above | 1 (2) | 1 (2) | - | 1 | 0 | 1 |
Disruptive, impulse control, and conduct disorders | ||||||
  Oppositional defiant disorder | 4 (6) | 10 (16) | - | 4 (10) | 1.26 | 0.26 |
  Conduct disorder | - | 4 (6) | - | - | NA | NA |
  Intermittent explosive disorder | 1 (2) | 2 (2) | - | 1 (3) | 0 | 1 |
  Any of the above | 5 (8) | 16 (25) | - | 5 (13) | 1.92 | 0.16 |
Substance-related disorders | - | 1 (2) | - | - | NA | NA |
Any of the above disorders | 56 (88) | 62 (97) | 21 (84) | 35 (90) | 0.08 | 0.77 |