Mental health and sleep disturbances among Ukrainian refugees in the context of Russian-Ukrainian war: A preliminary result from online-survey.

The ongoing Russian-Ukrainian conflict has caused a significant displacement of individuals, with an estimated five million Ukrainians seeking temporary refuge in other countries. We conducted a survey among Ukrainians in various countries worldwide using a convenience sample and analyzed 144 responses. The participants were divided into two groups: group 1, consisting of 92 Ukrainian refugees who were forced to leave their country due to the conflict, and group 2, comprising 52 individuals who did not change their place of residence.