title: [Clinical and spirometric correlation with home allergens and with pollutants].
abstract: BACKGROUND
  Environmental contamination causes an increase in respiratory symptoms, especially in patients with asthma. The severity of allergic asthma in children is associated with the presence of intradomicilliary aeroallergens and intramural contaminants.
  
  
  OBJECTIVE
  Correlation to clinical abnormalities, spyrometryand skin test with the intradomiciliary pollution.
  
  
  METHODS
  Children who participated ranged in age from 6 to 15 years, attended public schools, and were classified as healthy and asthmatic. A questionnaire was applied to them, as well as a clinical history, spirometry, skin tests, and an environmental study at home.
  
  
  RESULTS
  Fifty-seven children were studied, of 10 years of age (+/- 3). Group 1 (23 healthy children): Positive skin tests, dust 66.6%, cockroaches 66.6%, mites 33.3%, cat 33.3%, dog 4.3%. Principal clinical symptoms were cough 91.3%, wheezing 78.3%, respiratory difficulty 39.1% with a morning predominance of 78.3%. Spirometry showed an obstructive pattern in 30.5%. Group 2 (34 asthmatic children): Positive skin tests, mites 52.1%, dust 47.8%, cockroach 21.7%, cat 21.7%, dog 4.3%, passive exposure to tobacco smoke 79.5%. Principal clinical symptoms were cough 91.3%, respiratory 82.3%, wheezing 79.4%, predominantly at night 70.5%. Spirometry showed obstructive pattern in 67.7%.
  
  
  CONCLUSIONS
  Children with asthma present great contact and sensitivity for intradomicilliary allergens such as mites in household dust, proteins from cat, dog, and cockroach feces, in addition to greater frequency of passive smoking. It is important to point out that these factors can be modifiable at low cost, thus presenting the conditions for a better quality of life for the patient and diminishing costs of medical attention.
authors.affiliation: Unidad de Medicina Familiar núm. 28, Gabriel Mancera, IMSS, México.
authors.forename: A L
authors.initials: AL
authors.lastname: Varela Delgado
authors.forename: N H
authors.initials: NH
authors.lastname: Segura Méndez
authors.forename: M
authors.initials: M
authors.lastname: Salas Ramírez
authors.forename: G
authors.initials: G
authors.lastname: Espínola Reyna
authors.forename: A B
authors.initials: AB
authors.lastname: Torres Salazar
mesh_terms: D000293:Adolescent; D016902:Air Pollution, Indoor / Q000009:adverse effects*; D000485:Allergens / Q000009:adverse effects*; D001249:Asthma / Q000276:immunology / Q000503:physiopathology*; D002648:Child; D006801:Humans; D012882:Skin Tests; D013147:Spirometry
chemical_list: D000485:Allergens