Normal values for ventilatory function in Rhodesian Africans.

Forced vital capacity, forced expiratory volume in 1 sec and peak expiratory flow were measured in 141 African men and 102 African women aged 20 and above. Prediction formulae relating each measurement to height and age were drawn up and are presented. Rhodesian Africans have lower values for these measurements than subjects in some Europen and North American series, but broadly similar values to those of Africans elsewhere.