I et retrospektiv screening og case- kontrol studie med 3090 Parkinson patienter, fik 13, 6% af alle patienter behandlet med dopamin eller non- dopamine lægemidler, i løbet af de sidste 6 måneders behandling, symptomer på unormal adfærd.
In a cross-sectional, retrospective screening and case-control study including 3090 Parkinson’ s disease patients, 13.6% of all patients receiving dopaminergic or non-dopaminergic treatment had symptoms of an impulse control disorder during the past six months.