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Women's Issues

(PS10-90) Psychometric properties of the Parental Thoughts and Behaviors Checklist among Japanese postpartum women

Sunday, November 23, 2025
11:30 AM - 12:30 PM CST
Location: Elite Hall A, Level 1

    Author(s)

  • YM

    Yasue Mitamura, M.D.

    Research Fellow; Graduate Student
    National Center for Cognitive Behavior Therapy and Research, National Center of Neurology and Psychiatry; Brain Bioregulatory Science, Cooperative Graduate School, The Jikei University Graduate School of Medicine
    Kodaira, Tokyo, Japan

    • Co-Author(s)

  • AK

    Ayako Kanie, M.D., Ph.D.

    Visiting Researcher; Hospital Physician
    National Center for Cognitive Behavior Therapy and Research, National Center of Neurology and Psychiatry; Department of Child Psychiatry, Tokyo University
    Kodaira, Tokyo, Japan

  • CY

    Chika Yokoyama, Ph.D.

    Research Fellow
    National Center for Cognitive Behavior Therapy and Research, National Center of Neurology and Psychiatry
    Kodaira, Tokyo, Japan

  • CK

    Chika Kubota, M.D., Ph.D.

    Chief Physician
    Department of Psychiatry, National Center Hospital, National Center of Neurology and Psychiatry
    Kodaira, Tokyo, Japan

  • AO

    Aiko Okatsu, Ph.D.

    Associate Professor; Researcher
    School of Nursing, Japanese Red Cross Toyota College of Nursing; National Center for Cognitive Behavior Therapy and Research, National Center of Neurology and Psychiatry
    Toyota, Aichi, Japan

  • HI

    Haruna Irino, Ph.D.

    Research Fellow
    National Center for Cognitive Behavior Therapy and Research, National Center of Neurology and Psychiatry
    Kodaira, Tokyo, Japan

  • SS

    Satoko Sasagawa, Ph.D.

    Associate Professor; Visiting Researcher
    Faculty of Psychology, Mejiro University; National Center for Cognitive Behavior Therapy and Research, National Center of Neurology and Psychiatry
    Shinjuku-ku, Tokyo, Japan

  • AN

    Aiichiro Nakajima, M.D., Ph.D.

    Director
    Nakama Clinic
    Tomigusuku, Okinawa, Japan

  • SA

    Sayaka Aoyama, Ph.D.

    Researcher
    Graduate School of Nursing Science, St. Luke's International University; National Center for Cognitive Behavior Therapy and Research, National Center of Neurology and Psychiatry
    Kodaira, Tokyo, Japan

  • MM

    Miyuki Makino, M.A.

    Researcher
    National Center for Cognitive Behavior Therapy and Research, National Center of Neurology and Psychiatry
    Kodaira, Tokyo, Japan

  • YK

    Yaeko Kataoka, Ph.D.

    Professor
    St. Luke's International University
    Chuo-ku, Tokyo, Japan

  • MH

    Masaru Horikoshi, Ph.D.

    Visiting Professor
    Faculty of Human Sciences, Musashino University
    Nishi-Tokyo-shi, Tokyo, Japan

  • MI

    Masaya Ito, Ph.D.

    Director
    National Center for Cognitive Behavior Therapy and Research, National Center of Neurology and Psychiatry
    Kodaira, Tokyo, Japan

  • HK

    Hironori Kuga, M.P.H., M.D., Ph.D. (he/him/his)

    Director General
    National Center for Cognitive Behavior Therapy and Research, National Center of Neurology and Psychiatry
    Kodaira, Tokyo, Japan

Abstract Text:

Aims: The postpartum period is sensible to the onset and exacerbation of obsessive-compulsive disorder (OCD) due to the rapid increase in responsibility for the child (Fairbrother et al., 2021; Abramowitz et al., 2003). However, the availability of assessment tools for postpartum OCD with validated psychometric properties remains limited. This study aimed to evaluate the psychometric properties of the Parental Thoughts and Behavioral Checklist (PTBC), including factor structure, internal consistency, and construct validity among Japanese postpartum women.

Methods: Participants were recruited from an internet-based survey panel. A total of 1,039 (mean age: 31.9 [standard deviation: 4.3] years) postpartum women completed the online questionnaire within 26 weeks postpartum. The questionnaire included the PTBC, Obsessive Compulsive Inventory-Revised (OCI-R), Patient Health Questionnaire -9 (PHQ-9), Edinburgh Postnatal Depression Scale (EPDS), Generalized Anxiety Disorder-7 (GAD-7), and Satisfaction with Life Scale (SWLS). Factor structure was examined using exploratory and confirmatory factor analyses, and internal consistency was assessed. Correlations between PTBC scores and OCI-R, PHQ-9, EPDS, GAD-7, and SWLS were evaluated to assess construct validity.

Results: 83.8% of participants reported having experienced an intrusive thought from the PTBC checklists and 67.8% of participants reported having at least one current intrusive thought. Exploratory factor analysis of the PTBC identified seven thematic factors, with Cronbach’s alpha values ranging from .69 to .85. Confirmatory factor analysis of PTBC severity supported a two-factor model comprising obsessions and compulsions (χ² (219.954), CFI = .972, TLI = .957, RMSEA = .080 (90% CI: .070–.090), and SRMR = .029). Cronbach’s alpha values for these factors were .85 and .88, respectively, with an overall alpha of .93. The PTBC showed moderate positive correlations with PHQ-9, EPDS, GAD-7, and OCI-R scores (r= .45- .58, p< 0.05), while a weaker negative correlation was observed with SWLS scores (r=-.23, p< 0.05).

Conclusion: The findings support the reliability and psychometric validity of the PTBC among Japanese postpartum women. Although there are some limitations, the findings provide the first insight into postpartum OCD symptoms in Japan.