“Disaggregated data for urban child workers are unavailable, although some reference is made to occupations such as construction, work in factories, the service sector,” said the report. “Poverty and lack of social security are the main causes of child labour.” Child workers typically suffer from a variety of health effects, including orthopaedic ailments, injuries, stunting of gastro-intestinal, endocrinal and reproductive systems because of strain and exposure, and greater preponderance of substance abuse as compared to children who are not in labour.