This document summarizes a study that examined the prevalence of Post Traumatic Stress Disorder (PTSD) among 522 flood-affected school children in Pakistan. The main findings were that secondary school students, female students, and displaced students were highly affected by PTSD. Female students and displaced students had higher levels of PTSD compared to male students and non-displaced students, respectively. The study provides evidence that natural disasters can significantly impact children's mental health and identifies groups particularly vulnerable to developing PTSD.