2093 Allergic diseases and sensitization to aeroallergens in workers and users of university libraries

Monday, 8 December 2014
Exhibition Hall-Poster Area (Sul America)

Magna Quadros Coelho, MD, PHD , Fisiopatologia, Unimontes, Montes Claros, Brazil

Cristiane Barbosa, MD , Fisiopatologia, Unimontes, Montes Claros, Brazil

Lucas Fonseca, MD , Fisiopatologia, Unimontes, Montes Claros, Brazil

Paula Borges, MD , Dermatologia, Funorte, Montes Claros, Brazil

Lucas Marques, Student , Medicina, Faminas, Belo Horizonte, Brazil

Dirceu Sole, MD, PhD , Sao Paulo Federal University, Brazilian Society, Sao Paulo, Brazil

Background:  The increased prevalence of allergic diseases is well known and exposure to environmental allergens is an important risk factor for the development of sensitization. Libraries are living examples of workplaces where there is rich exposure of its workers to various aeroallergens, as it is an environment conducive to proliferation of mites, molds, cockroaches, old papers and low ventilation.

Methods:  To assess the prevalence of allergic diseases and sensitization to aeroallergens in workers (W) and students (S) of libraries in Universities, was made  a cross-sectional study using a standard questionnaire International Study of Asthma and Allergies in Childhood and performed skin prick tests for immediate hypersensitivity (SPT).  This scientific study was approved by the Ethics Committee.            

Results:  The total study sample of 207 subjects, 94 (45.4%) representatives of W and 113 (54.6%), the group of S. Of all participants, 115 (55.6%) were female and 92 (44.4%), male. The mean age was 23 years, ranging between 17 and 64 years old.  Of these subjects, 123 (59.4%) underwent immediate hypersensitivity skin test, 72 (58.5%) belonging to the group W and 51 (41.5%) to the group S. Only 84, were not tested by exclusion criteria or does not appear to perform.   The prevalence of active asthma was 16.9%, with no difference between groups (W = 17.0%, S = 16.8%), allergic rhinitis, the overall prevalence was 61.4%, with 58.5% for W and 63.7% for S. In the case of atopic eczema, overall prevalence was 10.6%, 13.8% and 8% for S and W members. The average SPT was positive in 17.4%. The highest percentage of positivity was checked for mites (D. pteronyssinus: B. tropicalis and 42.3%: 34.1%), followed by cockroaches (B. germanica: 23.6% and American P:17.1 %).

Conclusions: There was no significant difference in the prevalence of allergic diseases in both groups. What, in general, was also observed in the positivity of skin tests.