Translation and Adaptation of the Japanese Version of the Revised Parental Stressor Scale: Pediatric Intensive Care Unit.

Introduction The physical, cognitive, and psychiatric disorders that occur in patients after leaving the intensive care unit (ICU) are collectively called post-intensive care syndrome (PICS). Moreover, PICS-family (PICS-F) refers to the long-term psychological and social disorders that occur in the family. The symptoms of PICS-F can be psychological, and stress is a known cause of these symptoms. The Parental Stressor Scale: Pediatric Intensive Care Unit (PSS: PICU) was developed to assess stress levels and related factors among the families of patients admitted to the PICU. It has been translated into several languages and was revised in 2021. However, a Japanese version of the revised PSS: PICU (J-R-PSS: PICU) has not yet been developed. This study aimed to develop a J-R-PSS: PICU and to test its acceptability for clinical use. Materials and methods A back-translation method, involving initial translation, review by bilingual experts, and subsequent re-translation to ensure accuracy, was used to develop the J-R-PSS: PICU. Families with patients in the PICU for >48 hours between November and December 2021 and those who were transferred out of the ICU were recruited. Moreover, the study documents with a QR code for a web questionnaire were provided and explained to family members. Stress scores and stressors of family members were collected from web questionnaires using the PSS: PICU as the primary endpoint. Other information about the patients and their families was collected from clinical records and questionnaires. Participants and an expert panel evaluated the clarity of each item, and the expert panel evaluated the relevance of each item. Results Twenty family members who met the inclusion criteria and provided informed consent were included. The J-R-PSS: PICU was developed using a back-translation method. For clarity, all items were clarified after a single modification by an interdisciplinary team. For relevance, all the items had a content validity index at an item level of ≥0.8 and a scale level of 0.94. Alpha coefficients were 0.93 for the overall scale and 0.69-0.97 for its subscales. Conclusion We developed the J-R-PSS: PICU with high content validity and internal consistency using a back-translation method.