Methods: we have conducted a descriptive, observational, prospective and transversal study being the criteria for inclusion: male and female patients aged 2-58 who came for first time at our service with diagnosis of asthma, rhinitis or asthma more rhinitis. We evaluated the skin reactivity by skin prick test to Blomia tropicalis’ antigen. Descriptive statistics was implemented by estimating summary measures and dispersion.
Results: from a total of 110 patients were included, their mean age was 16.25 (2-58), 50% were males, 92% were from urban areas and 7.3% from rural areas. Of the patients studied 2.7% had asthma, 73.6% had rhinitis and 23.6% both diagnoses. The prevalence of positive skin reactivity to Blomia tropicalis was 24.5%. The prevalence of positive skin reactivity for the rhinitis subgroup was 59.3% and for the asthma/rhinitis subgroup was 40.7%, while in the asthma subgroup the prevalence was 0%.
Conclusions: the high prevalence of skin reactivity to Blomia tropicalis indicated the importance of including Blomia tropicalis in routine diagnostic testing and immunotherapy treatment.