Table 3

Pharmacological categories used in the studies that used drug prescriptions to identify patients with the outcome of interest

OutcomeNo of studies%
Anxiety12100.0
 Studies of anxiety that used drugs prescriptions only00.0
 Studies of anxiety that used drugs prescriptions18.3
Diazepam and lorazepam18.3
Depression42100.0
 Studies of depression that used drugs prescriptions only614.3
 Studies of depression that used drugs prescriptions2150.0
Antidepressants, categories not further specified1535.7
Antidepressants, categories further specified614.3
Tricyclic and related antidepressant drugs37.1
Monoamine oxidase inhibitors37.1
Selective serotonin reuptake inhibitors614.3
Other antidepressant drugs37.1
Dementia27100.0
 Studies of dementia that used drugs prescriptions only00.0
 Studies of dementia that used drugs prescriptions414.8
Anticholinesterases414.8
Dopaminergic drugs414.8
Pain8100.0
 Studies of pain that used drugs prescriptions only225.0
 Studies of pain that used drugs prescriptions225.0
Analgesics, not otherwise specified225.0
Antidepressants225.0
Antiepileptics225.0
Anaesthetics225.0
Sexual dysfunction (male)6100.0
 Studies of sexual dysfunction that used drugs prescriptions only116.7
 Studies of sexual dysfunction that used drugs prescriptions350.0
Phosphodiesterase type-5 inhibitors233.3
Prostaglandin analogues and prostamides116.7