Table 2 Age at first time diagnosis of preceding disorders in BD and SZ
From: Preceding diagnoses to young adult bipolar disorder and schizophrenia in a nationwide study
BD | SZ | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Mean | Median | SD | Range | Mean | Median | SD | Range | z | p | |
Substance use disorders | 24.3 | 24.0 | 4.9 | [14;33] | 23.4 | 22.0 | 4.9 | [14;33] | - 1.8 | .067 |
Psychosis | 23.5 | 23 | 4.9 | [14;34] | 24.3 | 24.0 | 4.6 | [5;34] | - 1.8 | .076 |
Affective disorders | 25.0 | 25.0 | 4.5 | [13;34] | 23.4 | 23.0 | 4.7 | [11;34] | - 4.9 | <.001 |
Anxiety disorders | 24.1 | 24.0 | 4.6 | [11;34] | 23.2 | 23.0 | 4.5 | [6;34] | - 1.5 | .134 |
Reactions to severe stress | 23.5 | 23.0 | 5.1 | [10;34] | 22.6 | 22 | 5.0 | [9;34] | - 2.2 | .027 |
Personality disorders | 23.5 | 24.0 | 4.6 | [12;34] | 22.6 | 22.0 | 4.4 | [12;34] | - 2.1 | .035 |
Conduct disorder | 18.9 | 16.0 | 7.1 | [11;32] | 15.6 | 15.0 | 6.4 | [5;30] | -1.4 | .168 |
ADHD | 21.0 | 22 | 8.4 | [3;33] | 22.2 | 23.0 | 7.1 | [5;33] | - 0.6 | .530 |
Conduct disorder | 18.9 | 16.0 | 7.1 | [11;32] | 16.0 | 16.0 | 6.3 | [5;30] | -1.1 | .278 |
Age at first preceding diagnosis | 23.3 | 23.0 | 5.2 | [3;34] | 22.5 | 22.0 | 5.1 | [5;34] | -3.2 | .001 |