Table 1

 Study population characteristics by antidepressant (ATD) drug group

ATD drug group
TCA*SSRI†Other‡MAOI§Any ATD
*Tricyclic antidepressants.
†Selective serotonin reuptake inhibitors.
‡Other antidepressants (flupentixol, mirtazapine, nefazodone, reboxetine, tryptophan, venlafaxine).
§Monoamine oxidase inhibitors.
¶Subjects were counted more than once if prescribed ATDs from more than one drug group.
Prescriptions (%)51868 (55.7)38429 (41.3)2708 (2.9)86 (0.1)93091 (100.0)
    Most commonly prescribed drugImipramineFluoxetineVenlafaxineMoclobemide
    Prescriptions (%)20938 (22.5)18145 (19.5)1372 (1.5)65 (0.1)
Subjects (%)15930 (63.8)10480 (42.0)1056 (4.2)37 (0.1)24976 (100.0)
    Mean age at study entry (SD), y12.6 (4.64)16.4 (2.04)16.5 (1.98)15.5 (4.20)14.0 (4.35)
    Boys/girls7108/88222591/7889274/78218/199422/15554
First time new users (%)13382 (60.3)8254 (37.2)562 (2.5)16 (0.1)22195 (100.0)
    Mean age at study entry (SD), y12.3 (4.68)16.5 (2.03)16.6 (2.09)15.6 (4.60)13.9 (4.37)
    Age groups:
        0–10 years5130150935292
        11–14 years25667143803318
        15–18 years568673905151313604