Disease Areas:
Population studyDevice Types:
AlphaThis cross-sectional study was undertaken to establish age-specific normative spirometry reference ranges and regression equations for 751 children and adolescents aged 7–18 years from a variety of socioeconomic strata in Karachi, Pakistan. Lung function testing (FEV1, FVC, FEV1/FVC ratio, PEF, FEF25–75) was undertaken using a calibrated Vitalograph Alpha spirometer.
