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Supplemental Material for Validation of the French–Canadian Version of the COVID-19 Peritraumatic Distress Index With Parents of an Infant

Parents of an infant may be particularly vulnerable to peritraumatic distress (e.g., psychological distress experienced during or immediately following a traumatic event) associated with events such as the COVID-19 pandemic. Since peritraumatic distress could affect both their psychological well-being and their couple relationship functioning, it is essential to measure and document these symptoms within parents. The COVID-19 Peritraumatic Distress Index (CPDI;Qiu et al., 2020) was the first validated instrument to measure COVID-19 peritraumatic distress, but it has not yet been validated in French. This study aimed to assess the psychometric properties of the French-Canadian version of the CPDI (F-CPDI) in a sample of 492 parents (58% of mothers) of an infant in Quebec Province (Canada). The factor structure, internal consistency, and convergent validity of the instrument were tested. Results indicate that the F-CPDI has good internal consistency and supports the four-factor structure proposed by the authors of the original instrument. Results of correlation analyses indicated that peritraumatic distress was related to increased psychological distress, postpartum depression, and lower life satisfaction. Results indicate satisfactory psychometric qualities for the F-CPDI, providing researchers and mental health professionals access to a COVID-19 peritraumatic distress measure. This questionnaire can be used to assess peritraumatic distress in parents of an infant during a pandemic period, which is a first step towards offering adapted intervention strategies.