A follow-up study of airway symptoms and lung function among residents and workers 5.5 years after an oil tank explosion.

Other general characteristics and possible environmental respiratory health risks at home (having pets, moisture damage or carpets on floors: results not shown), did not differ significantly between the exposed and non-exposed groups (Table 1 ). The mean FEV 1 decline (∆FEV 1 ) per year during the 4-year follow-up appeared to be somewhat larger among exposed than non-exposed men, but this difference did not reach statistical significance in crude and adjusted analyses (Table 2 ).

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