Prevalence of secondary traumatic stress in nurses: a meta-analysis of observational studies.
The reported prevalence of secondary traumatic stress (STS) among nurses varies considerably across studies, ranging from 22. 1 to 84.4%. This meta-analysis aimed to estimate the pooled prevalence of STS and identify potential moderating factors among nurses.
From the inception of each target database to April 2026, a comprehensive search was performed across PubMed, Web of Science, Scopus, Embase, Cochrane Library, CINAHL, and PsycINFO. We calculated the pooled prevalence of STS using a random-effects model and assessed heterogeneity using the I2 statistic. Subgroup analyses and meta-regression were conducted to explore potential sources of heterogeneity.
A total of 28 studies comprising 7,090 nurses were included. The pooled prevalence of STS in nurses was 57.3% (95% CI: 49.7-64.9%). STS prevalence was significantly associated with mean age (β = -0.064, p = 0.023), work experience (β = -0.080, p = 0.040), publication year (during COVID-19: β = 0.979, p = 0.024; after COVID-19: β = 0.848, p = 0.030), and geographic region (North America: β = -0.881, p = 0.019; Europe: β = -1.031, p = 0.005).
Our findings indicated that STS was very prevalent in nurses, and the prevalence is moderated by mean age, work experience, publication year, and geographic region. Regular STS assessments and multi-level support systems, such as early warning, peer support, and mental health training, are recommended to reduce STS risk and enhance the wellbeing of nurses.
From the inception of each target database to April 2026, a comprehensive search was performed across PubMed, Web of Science, Scopus, Embase, Cochrane Library, CINAHL, and PsycINFO. We calculated the pooled prevalence of STS using a random-effects model and assessed heterogeneity using the I2 statistic. Subgroup analyses and meta-regression were conducted to explore potential sources of heterogeneity.
A total of 28 studies comprising 7,090 nurses were included. The pooled prevalence of STS in nurses was 57.3% (95% CI: 49.7-64.9%). STS prevalence was significantly associated with mean age (β = -0.064, p = 0.023), work experience (β = -0.080, p = 0.040), publication year (during COVID-19: β = 0.979, p = 0.024; after COVID-19: β = 0.848, p = 0.030), and geographic region (North America: β = -0.881, p = 0.019; Europe: β = -1.031, p = 0.005).
Our findings indicated that STS was very prevalent in nurses, and the prevalence is moderated by mean age, work experience, publication year, and geographic region. Regular STS assessments and multi-level support systems, such as early warning, peer support, and mental health training, are recommended to reduce STS risk and enhance the wellbeing of nurses.