title: Validation of the Brazilian Portuguese version of the Premenstrual Symptoms Screening Tool (PSST) and association of PSST scores with health-related quality of life.
abstract: To develop and validate a Brazilian Portuguese version of the Premenstrual Symptoms Screening Tool (PSST), a questionnaire used for the screening of premenstrual syndrome (PMS) and of the most severe form of PMS, premenstrual dysphoric disorder (PMDD). The PSST also rates the impact of premenstrual symptoms on daily activities.
  A consecutive sample of 801 women aged ≥ 18 years completed the study protocol. The internal consistency, test-retest reliability, and content validity of the Brazilian PSST were determined. The independent association of a positive screen for PMS or PMDD and quality of life determined by the World Health Organization Quality of Life instrument-Abbreviated version (WHOQOL-Bref) was also assessed.
  Of 801 participants, 132 (16.5%) had a positive screening for PMDD. The Brazilian PSST had adequate internal consistency (Cronbach's alpha = 0.91) and test-retest reliability. The PSST also had adequate convergent/discriminant validity, without redundancy. Content validity ratio and content validity index were 0.61 and 0.94 respectively. Finally, a positive screen for PMS/PMDD was associated with worse WHOQOL-Bref scores.
  These findings suggest that PSST is a reliable and valid instrument to screen for PMS/PMDD in Brazilian women.
authors.affiliation: Departamento de Clínica Médica e Grupo de Pesquisa em Psiquiatria Translacional, Faculdade de Medicina, Universidade Federal do Ceará (UFC), Fortaleza, CE, Brazil.
authors.forename: Rachel de A
authors.initials: RA
authors.lastname: Câmara
authors.affiliation: Departamento de Clínica Médica e Grupo de Pesquisa em Psiquiatria Translacional, Faculdade de Medicina, Universidade Federal do Ceará (UFC), Fortaleza, CE, Brazil.
authors.forename: Cristiano A
authors.initials: CA
authors.lastname: Köhler
authors.affiliation: MiNDS Neuroscience Graduate Program, McMaster University, Hamilton, ON, Canada.|Mood Disorders Program and Women's Health Concerns Clinic, St. Joseph's Healthcare, Hamilton, ON, Canada.|Department of Psychiatry and Behavioral Neurosciences, McMaster University, Hamilton, ON, Canada.
authors.forename: Benicio N
authors.initials: BN
authors.lastname: Frey
authors.affiliation: Department of Psychiatry, Division of Medicine, School of Health Sciences, University of Ioannina, Greece.
authors.forename: Thomas N
authors.initials: TN
authors.lastname: Hyphantis
authors.affiliation: Departamento de Clínica Médica e Grupo de Pesquisa em Psiquiatria Translacional, Faculdade de Medicina, Universidade Federal do Ceará (UFC), Fortaleza, CE, Brazil.
authors.forename: André F
authors.initials: AF
authors.lastname: Carvalho
mesh_terms: D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D001007:Anxiety / Q000175:diagnosis / Q000523:psychology; D001938:Brazil; D003863:Depression / Q000175:diagnosis / Q000523:psychology; D005260:Female; D006801:Humans; D011293:Premenstrual Syndrome / Q000175:diagnosis* / Q000523:psychology*; D011569:Psychiatric Status Rating Scales; D011788:Quality of Life / Q000523:psychology*; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D012959:Socioeconomic Factors; D018709:Statistics, Nonparametric; D011795:Surveys and Questionnaires / Q000592:standards*; D014177:Translations; D055815:Young Adult