Setting and period
SECONDARY
The study was performed in the Gedeo Zone of southern Ethiopia, 362 km from Addis Ababa, the capital of Ethiopia. The Zone is divided into nine districts: Bule, Gedeb, Kuchare, Wonago, Yirgachafe, Kedida Gubata, Raphe, and Chorso. There are three hospitals, 35 health centres, and 146 health posts in the Zone. The total population of the Zone is 1,193,162, and an estimated 351,983 are adolescents. There are 29 junior schools (26 public, two private, and one religious school) and nine secondary schools. A total of 34,445 students were enrolled in secondary school during the academic year [