Epidemiology and hazards of student labour in Mansoura, Egypt.
To determine the prevalence of student labour, underlying causes and impacts, we carried out a cross-sectional study on 1293 students enrolled in government secondary schools in Mansoura. Year-round work was reported by 8.6% of students and summer work by 27.5%. The majority worked for > or =6 hours/day. Lower social status, attending vocational school, male sex, large family size and rural residence were significant predictors of student labour. Hazards at the workplace, injuries and corporal punishment were prevalent among working students. Work adversely affected education and social life. Contribution to family income was the main reason for working.