Abstract
BACKGROUND: The COVID-19 pandemic has represented a traumatic event for the general population, being associated with significant levels of uncertainty for the future, anxiety and depressive symptoms, especially in the first months of the health crisis. The adoption of strict containment measures, lockdown and interruption of all unnecessary activities have had a significant impact on the mental health of the general population. Moreover, the COVID-19 pandemic has been considered a very stressful event (which could be defined as ''traumatic''), being associated with significant morbidity and mortality and being completely unpredictable. Based on such premises, we conducted a systematic review of the available literature in order to identify all studies providing epidemiological data and statistics on the prevalence and characteristics of post-traumatic stress disorder (PTSD) in the general population during the COVID-19 pandemic. METHODS: An extensive literature search has been conducted across PubMed, Scopus, and Web of Science from the inception of each database until 15 November 2024. RESULTS: Forty-one papers have been included in the review; the majority of the studies have been conducted in Italy and China. A significant heterogeneity in prevalence rates, ranging from 0.5% to 70.2%, and psychometric tool used was found. The most common risk factors for developing PTSD in the framework of the COVID-19 pandemic included: female gender, social isolation, impact on daily routine. The most relevant protective factor includes older age. CONCLUSIONS: Future research should aim to standardize assessment tools and criteria to enhance the comparability and reliability of findings in the field of trauma-related research studies.