title: Irritability in a Prospective Cohort of Huntington's Disease Mutation Carriers.
abstract: A key neuropsychiatric symptom of Huntington's disease, irritability, contributes to a decline in functioning and to great distress in both patients and their caregivers. To identify mutation carriers prone to the development of irritability, this study aimed to investigate the course and temporal relationships between irritability and other neuropsychiatric symptoms. A cohort of 90 mutation carriers was followed for 2 years. Using the Irritability Scale, the incidence of irritability was 23%, whereas irritability persisted in 70% of the mutation carriers with irritability at baseline. An increase in irritability was strongly associated with an increase in apathy.
authors.affiliation: From the Dept. of Psychiatry, Leiden University Medical Center, Leiden, The Netherlands (JAB, EvD, RCvdM, EJG); the Center for Mental Health Care Delfland, Delft, The Netherlands (EvD); and the Dept. of Neurology, Leiden University Medical Center, Leiden, The Netherlands (RACR).
authors.forename: Joseph A
authors.initials: JA
authors.lastname: Bouwens
authors.affiliation: From the Dept. of Psychiatry, Leiden University Medical Center, Leiden, The Netherlands (JAB, EvD, RCvdM, EJG); the Center for Mental Health Care Delfland, Delft, The Netherlands (EvD); and the Dept. of Neurology, Leiden University Medical Center, Leiden, The Netherlands (RACR).
authors.forename: Erik
authors.initials: E
authors.lastname: van Duijn
authors.affiliation: From the Dept. of Psychiatry, Leiden University Medical Center, Leiden, The Netherlands (JAB, EvD, RCvdM, EJG); the Center for Mental Health Care Delfland, Delft, The Netherlands (EvD); and the Dept. of Neurology, Leiden University Medical Center, Leiden, The Netherlands (RACR).
authors.forename: Roos C
authors.initials: RC
authors.lastname: van der Mast
authors.affiliation: From the Dept. of Psychiatry, Leiden University Medical Center, Leiden, The Netherlands (JAB, EvD, RCvdM, EJG); the Center for Mental Health Care Delfland, Delft, The Netherlands (EvD); and the Dept. of Neurology, Leiden University Medical Center, Leiden, The Netherlands (RACR).
authors.forename: Raymund A C
authors.initials: RA
authors.lastname: Roos
authors.affiliation: From the Dept. of Psychiatry, Leiden University Medical Center, Leiden, The Netherlands (JAB, EvD, RCvdM, EJG); the Center for Mental Health Care Delfland, Delft, The Netherlands (EvD); and the Dept. of Neurology, Leiden University Medical Center, Leiden, The Netherlands (RACR).
authors.forename: Erik J
authors.initials: EJ
authors.lastname: Giltay
mesh_terms: D000328:Adult; D057565:Apathy; D015331:Cohort Studies; D005260:Female; D006801:Humans; D006816:Huntington Disease / Q000150:complications* / Q000235:genetics*; D007508:Irritable Mood / Q000502:physiology*; D016014:Linear Models; D008297:Male; D008875:Middle Aged; D009154:Mutation / Q000235:genetics*; D011569:Psychiatric Status Rating Scales