Evaluation of Lung Volumes and Capacities in Native and Non-Native Female Students in Northwest of Iran

Native spirometric parameters are widely used for evaluation of lung function. Here we studied the spirometric parameters including residual volume (RV) and functional residual capacity (FRC) in a group of young female. 150 healthy non-smoker female students with (mean age of 20.5 ± 1.19) were studied. Spirometric parameters, FRC, TLC, RV, FEV1, FVC, FEV1/FVC, were measured using Zan 500 plethysmograph and result were compared with standard values for Caucasians. In comparison between native and non-native individuals, the values of inspiratory capacity and residual volume had a significantly difference between these two groups (P<0.05). Except for TLC other measured parameters had a significant differences with proposed values (P<0.05). Values for lung function tests in Iranian young individuals were at the range of 94-106 percent of the proposed value for caucasian female. Results obtained from this study indicate a significant difference between spirometric parameters of Iranian females and proposed values for Caucasian.