Gambaran Nilai Peak Expiratory Flow Rate (Pefr) Dan Keluhan Respirasi Pada Pe…

Highly air pollution in the world nowadays causes the high incindences of respiratory disease. This research aim was to know the PEFR and respiratory symptoms in street sweepers of Sanitation Department of Pekanbaru City. The research method was cross sectional descriptive. The samples were street sweepers which were randomized by stratified-random sampling method. The respiratory symptoms, age…