Pulmonary functions of commercial tricyclists (Keke Napep riders) in Enugu State, Nigeria

Background: Tricyclists are continuously exposed to vehicle emissions and other environmental pollutants, due to the nature of their job and vehicle design, which may be hazardous to health. However, there is paucity of data on the pulmonary functions of commercial tricyclists in Nigeria, which should have provided insight into any relevant health concerns in this population, hence this study. Objectives: This study evaluated the pulmonary functions of tricyclists, in comparison with those of age-matched non-tricyclists. Methods: Two hundred and ten (210) [150 commercial tricyclists; 60 non-tricyclists] males (aged 20-65years) participated in this unmatched case-control study in Enugu, Enugu state, Nigeria. Their pulmonary functions [Forced Vital Capacity (FVC), Forced Expiratory Volume in one second (FEV1), Peak Expiratory Flow Rate (PEFR)] were assessed using a computerized spirometer. Independent T-test and Pearson Chi-square were used to analyze data at a significant level of P