Psychometric properties of the Italian version of the Pandemic-Related Pregnancy Stress Scale (PREPS) and its correlation with anxiety and depression

Background: In the beginning of 2020, Italy was the first European country to face the COVID-19 outbreak. Restrictions imposed during the pandemic, social isolation, and the cancellation of medical appointments likely resulted in stress that may have affected pregnant women adversely. Aims: To determine the psychometric validity of the Italian version of the Pandemic-Related Pregnancy Stress Scale (PREPS) in assessing COVID-19-related stress in pregnant women and to examine correlations between PREPS scales and symptoms of anxiety and depression. Methods: 232 pregnant women attending the Obstetric-Gynecologic Clinic of an Academic Hospital were assessed with the PREPS, the Revised Prenatal Distress Questionnaire (NuPDQ), the General Anxiety Disorder-7 (GAD-7), and the Patient Health Questionnaire-2 (PHQ-2). We analyzed the internal consistency and factor structure of the PREPS. Convergent validity was examined by comparison with the NuPDQ. PHQ-2 and GAD-7 were used to measure the association with depression and anxiety. Results: Acceptable-to-good internal consistency was found for the three PREPS scales: Preparedness Stress (PS, α=0.760), Prenatal Infection Stress (PIS, α=0.857), and Positive Appraisal (PA, α=0.747). Correlations of the NuPDQ with both PREPS stress scale scores (PS and PIS) were statistically significant, but on multiple regression analysis only the PS scale was correlated with the NuPDQ. Prenatal infection stress predicted GAD-7 score, while Preparedness stress predicted PHQ-2 score. Limitations: The main limitations were the small sample size and the cross-sectional design of the study. Conclusion: The Italian PREPS exhibited good psychometric properties and associations with clinical symptoms of anxiety and depression.