Measuring posttraumatic stress disorder following childbirth
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Updated: Oct 2, 2025

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Published on: December 6, 2024
Hannah Dobson1, Charles Malpas2, Jayashri Kulkarni3
1Department of Psychiatry, 5392Alfred Health, Melbourne, VIC, Australia; and Monash Alfred Psychiatry Research Centre, 90088The Alfred and Monash University Central Clinical School, Melbourne, VIC, Australia.
Purpose:
This study aims to assess the reliability and construct validity of the City Birth Trauma Scale (BiTS) in Oceania and confirm the latent factor structure of postpartum posttraumatic stress disorder (PTSD).
Methods:
Participants completed the City BiTS, demographic and obstetric information via an online survey. Psychometric properties of the City BiTS were investigated using confirmatory factor analyses (CFA).
Results:
The study included 195 women, with 39 participating in repeat administration. CFA confirmed a two-factor model which included a birth-related symptom (BRS) subscale and general symptom (GS) subscale. High reliability and construct validity was observed for subscales and total score at baseline and follow-up.
Conclusion:
The City BiTS represents a potentially useful tool to assist with screening for postpartum PTSD.
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