Chen, L., & Liu, A. (2015). The Incidence of Posttraumatic Stress Disorder After Floods: A Meta-Analysis. Disaster medicine and public health preparedness, 9(3), 329–333. https://doi.org/10.1017/dmp.2015.17

Syracuse University

Two meta-analyses reported the prevalence of PTSD. 
- One found a prevalence of diagnosed PTSD after floods of 16% (95% CI 0.11–0.21)
- The other reported a prevalence of PTSD in children and adolescents after earthquakes and floods of 20.8% between 0 and 6 months after the event, 14.6% at 6–12 months, and 16.3% at 12–18 months.

Prevalence of PTSD

The Incidence of Posttraumatic Stress Disorder After Floods: A Meta-Analysis

Rezayat, A. A., Sahebdel, S., Jafari, S., Kabirian, A., Rahnejat, A. M., Farahani, R. H., Mosaed, R., & Nour, M. G. (2020). Evaluating the Prevalence of PTSD among Children and Adolescents after Earthquakes and Floods: a Systematic Review and Meta-Analysis. The Psychiatric quarterly, 91(4), 1265–1290. https://doi.org/10.1007/s11126-020-09840-4

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