The aim of the study was to evaluate respiratory allergies of an occupation
al nature in the staff of the police force. Five hundred and eighty-five su
bjects were submitted for lung function tests by dynamic spirometry. Subjec
ts with a history of respiratory symptoms and border line respiratory funct
ion underwent bronchial provocation tests with methacholine. If FEV1 was <
80%, a bronchial reversibility test was performed. Allergic tests (skin and
RAST) for inhalating allergens (perennial, seasonal and occupational) were
performed. The results suggested asthmatic symptoms in 57 subjects, eight
of whom were positive to skin and RAST tests for occupational inhalating al
lergens. Among these eight subjects, three had FEV1 < 80% of the theoretica
l value without therapy, and five showed obstruction of small caliber airwa
ys (MEF 25, MEF 50, FEF 25-75 < 65% of the theoretical value). The analysis
showed a low percentage of respiratory occupational allergies. Among 21 su
bjects positive to Dermatophagoides, seven worked as archivists. In these w
orkers, a concomitant occupational cause for the symptomatological and func
tional pattern was established. (C) 2001 Elsevier Science B.V. All rights r
eserved.