Spirometric standards for healthy nonsmokers female industrial workers in Egypt

A groups of 213 Egyptian female industrial workers were selected from non dusty departments of the Nile Pharmaceutical company in America district. The subjects were asymptomatic, nonsmokers and not previously exposed to dust operations. All females workers were asked to complete a questionnaire on respiratory symptoms and then clinically examined. Those with no evidence of cardiopulmonary diseases were subjected to vitalograph spirometery. A prediction formulas based upon age and height were established for FVC, FEV1 and FEF 25-75%. Comparing our findings with the previous studies, the results revealed that our pulmonary measurements were lower than those obtained from the other similar studies. This was attributed to several confounding factors.