engleski

Psychometric properties of the Croatian version of the City Birth Trauma Scale

Background: City Birth Trauma Scale is a recently developed scale for posttraumatic stress disorder (PTSD) following childbirth according to the new criteria from DSM-5. Aims and Objectives: The objective of this study was to validate the Croatian version of the City Birth Trauma Scale by examining its factor structure, convergent and divergent validity, discriminant validity by known-groups differences, and reliability. Method: In the online study, 603 women filled out City Birth Trauma Scale, Impact of Event Scale- Revised (IES-R), Edinburgh Postnatal Depression Scale (EPDS), and anxiety subscale from the Depression, Anxiety, and Stress Scale (DASS- 21). Results: The confirmatory factor analysis confirmed the excellent fit to data of the bi-factor model comprising global factor and the two specific factors of the Birth-related symptoms and General symptoms. Both subscales and the total scale showed high reliability. Regarding convergent and divergent validity, Birth-related symptoms correlated more with another PTSD measure. On the other hand, General symptoms correlated more with depression and anxiety. Primiparous women and women who gave birth by instrumental vaginal delivery and emergency caesarean section had a significantly higher score on the Birth-related symptoms, but not on the General symptoms, showing high discriminant validity of the Birth- related symptoms subscale. Conclusions: The Croatian version of the City Birth Trauma Scale is highly recommendable as a reliable and valid measure of PTSD symptoms following childbirth, by using the new DSM-5 criteria. Further studies would benefit from applying clinical interview before using the Scale for clinical purposes.

PTSD, childbirth, scale, validity, factor structure, bifactor

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