Internal validity of the Latvian version of 16-item Prodromal Questionnaire PQ-16 in help-seeking population in Riga Children's Clinical University Hospital psychiatry clinic - first step description.

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Abstract

Objectives. One of the goals of early interventions is to recognize the prodromal phase of the disorder. Most psychotic disorders begin with a prodromal period of altered functioning before the onset of the acute state; several interviews have been developed to determine whether individuals present with prodromal symptoms. The 16-item Prodromal Questionnaire (PQ-16) is a screening tool for evaluating those at risk of developing a psychotic disorder. Despite the spread of similar instruments, such methods were not previously available in Latvia. The current study aims to evaluate the psychometric properties of the Latvian version of the PQ-16 in a sample of help-seeking adolescents referred to the Child psychiatry clinic and to make it available in the local clinical practice.
Materials and Methods. A prospective study included patients admitted between December 2022 and January 2023 in Riga’s Children’s Clinical University Hospital Psychiatry clinic. The data were collected during outpatient consultations by child psychiatrists. Data were analyzed with SPSS 28, Chi-square, t-test, ANOVA tests were used, and the diagnostic accuracy and internal validity were examined.
Results. 44 adolescents aged 12–17 participated in the study 86.4% female. The mean age was 15.2 (± 1.58). The majority of respondents (81.8%) scored above the current cut-off of 6 points, with a mean of 18.56 (CI 15.50–21.62). We found no sex differences or correlations with age. Patients with a history of experiencing emotional violence had significantly higher scores (p < .001). During the internal validation process, 15 of 16 items of the scale were tested valid with p < .001. The instrument had a high degree of internal consistency, with Cronbach’s Alpha 0.873.
Conclusions. The Latvian translation of PQ-16 is valid and can be used in the clinical environment. The current cut-off score of 6 points, which suggests a high probability of an at-risk mental state in a patient, has to be adjusted for the Latvian population.
Original languageEnglish
Pages (from-to)266
Number of pages1
JournalMedicina (Kaunas)
Volume59
Issue numberSuppl. 2
Publication statusPublished - 2023
EventRSU Research Week 2023: Research Week 2023 Rīga Stradiņš University - Riga Stradins University, Riga, Latvia
Duration: 27 Mar 202331 Mar 2023
https://rw2023.rsu.lv/general-information
https://rw2023.rsu.lv

Field of Science*

  • 3.2 Clinical medicine

Publication Type*

  • 3.4. Other publications in conference proceedings (including local)

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