Identifying Birth-Related PTSD: Cutoffs for the City Birth Trauma Scale

NCT07159516 | Completed

• 1 other identifier: Dnr 2023-04534-01
• Study Type: observational
• Target: 67
• Locations: 1 country
• Sites: 1

Brief Summary

A total of 67 people were recruited from maternity units and social media to take part in the study. They first completed an online questionnaire, then filled out the CityBiTS measure, and finally took part in a diagnostic interview over the phone. The CityBiTS scores were compared to the results of the interviews using ROC curve analysis. We looked at how well the scores identified cases (sensitivity), correctly identified non-cases (specificity), and overall accuracy to find the best cutoff scores and see how these compared to other available methods.

Conditions

Childbirth-related PTSD; PTSD; PTSD (Childbirth-Related); PTSD - Post Traumatic Stress Disorder; Post Traumatic Stress

Keywords

PTSD; childbirth; cut-off; CityBits; sensitivity; specificity; Diagnostic Interview; ROC curve

Outcome Measures

Primary Outcomes (1)

• Number of participants fulfilling the diagnostic criteria for BR-PTSD based on the diagnostic interview compared to CityBiTS

  Day 1

Secondary Outcomes (1)

• Cut-offs for CityBits

  up to 6 months

Study Arms (1)

Individuals recruited from birth units and social media who recently gave birth

Diagnostic Test: Diagnostic interview

Interventions

Diagnostic interview DIAGNOSTIC_TEST

SCID-5 Clinician Version (SCID-5-CV) was used as gold standard method for determining if diagnostic criteria of PTSD was met or not (First, 2023). SCID-5-CV has been validated for use via telephone with good results for PTSD (Osorio et al., 2019). Only the PTSD-chapter was used, and exclusively birth-related traumatic experiences were considered. This was done achieved by adding a question to the interview guide, addressing potentially traumatic experiences associated with healthcare during a physical examination, operation, intensive care or childbirth.

Individuals recruited from birth units and social media who recently gave birth

Eligibility Criteria

• Age: 18 Years+
• Sex: female
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Recruitment was performed from a risk group of individuals with a higher likelihood of having BR-PTSD than the average population, to decrease the number of needed diagnostic interviews. Recruitment was made achieved via two different paths. Since birth complications are important risk factors for BR-PTSD, individuals with documented medical complications during birth were recruited from nine birth units in different parts of Sweden for the first path. These were identified by the following diagnostic codes in medical records. Those meeting inclusion criteria were invited by postal mail, including information about the study as well as a link and QR-code to the first survey. The second recruitment path was via social media. The ad invited those who had recently given birth and experienced the birth as difficult.

You may qualify if:

• age 18 or more
• who had given birth with a minimum at four weeks prior to completing CityBiTS,
• who had a sufficient level of Swedish to participate.

You may not qualify if:

• Cases of stillbirth

Sponsors & Collaborators

• Region Östergötland: lead

Study Sites (1)

Vrinnevisjukhuset, KK

Norrköping, 603 54, Sweden

Location

MeSH Terms

Conditions

Stress Disorders, Post-Traumatic; Combat Disorders; Hypersensitivity

Condition Hierarchy (Ancestors)

Stress Disorders, Traumatic; Trauma and Stressor Related Disorders; Mental Disorders; Immune System Diseases

Study Design

• Study Type: observational
• Observational Model: OTHER
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal Investigator, Associate Professor

Study Record Dates

• First Submitted: August 21, 2025
• First Posted: September 8, 2025
• Study Start: November 1, 2023
• Primary Completion: November 1, 2024
• Study Completion: November 1, 2024
• Last Updated: September 8, 2025

Record last verified: 2025-08

Data Sharing

• IPD Sharing: Will not share

Locations

SE (1)