Peak expiratory flow rate among child labourers in West Bengal, India.

This study was conducted to evaluate Peak expiratory flow rate (PEFR) in different groups of working children. Study population comprises of 300 child workers, 100 in each group (agricultural workers, constructional workers, control group or domestic workers with equal sex, age and socioeconomic distribution). PEFR value was lowest among construction workers. PEFR values of all subjects had a linear relationship with age, weight, and height.