Some observations of peak expiratory flow in normal school children in northern Nigeria.

Peak expiratory flow rate and anthropometric measurements were made on 248 healthy secondary school children in Northern Nigeria. The male children have significantly higher values (P less than 0.01) of peak expiratory flow rate in comparison to female children. The peak flow rate measurements both in male and female children show positive correlation with height and weight and body surface area. It was observed that results obtained in the present study were significantly (P less than 0.001) lower than the predicted values derived from the formulae based on age and height of American children.