mments: 'This is one of the first studies to quantify the factors that affect the overall physical and mental health of internally displaced persons. It provides data on the impact of deprivation of basic goods and services on both physical and mental health. We also found a strong association between the frequency and type of exposure to traumatic events on both poor physical and mental health. Many of the trauma variables reported took place in the camps, and the variable on perceived lack of safety in the camps had a strong negative association with mental health. The study provides evidence of the importance of ensuring adequate assistance and protection in camp situations to reduce exposure to traumatic events and poor health outcomes.'