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Allergic rhinitis and atopy in 18-year-old students
Marianne Brattmo1, Sven Lindberg, Jan-Ake Wihl
1Department of Otorhinolaryngology, University Hospital, Malmö, Sweden.
American Journal of Rhinology
|January 7, 2003
Summary
High prevalence of allergic rhinitis in adolescents was observed. Indoor air pollution and dust in schools did not correlate with allergic sensitization in students.
Area of Science:
- Environmental Health
- Pediatric Allergy
- Epidemiology
Background:
- Investigating the prevalence of allergic rhinitis and atopy in adolescents.
- Assessing the potential contribution of school indoor air pollution to allergic sensitization.
Purpose of the Study:
- To determine the prevalence of allergic rhinitis and atopy among adolescents.
- To examine the relationship between indoor air pollutants in schools and allergic sensitization.
Main Methods:
- Study involved 511 18-year-old students across four schools (1992-1994).
- Data collection included skin-prick tests (SPTs), nasal lavage, and computer-based questionnaires.
- Analysis of indoor air and floor dust samples from classrooms.
Main Results:
- Atopy (positive SPT) found in 37% of students, with no significant school-based differences.
- 35% of students reported nasal symptoms upon allergen exposure; no school-based differences observed.
- No correlation identified between atopy prevalence and indoor air pollutant levels in schools.
Conclusions:
- Adolescent allergic rhinitis prevalence is high and appears to be increasing.
- School indoor air and floor dust were not found to contribute to allergic sensitization in this study.
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Asthma is a chronic pulmonary condition involving inflammation of the airways, hyper-reactivity, and reversible obstruction of the airways. This condition can significantly impact a person's quality of life, making breathing difficult and leading to distressing symptoms.
Asthma is classified as allergic and non-allergic. Allergens such as dust mites, pollen, and pet dander trigger allergic asthma, while factors like cold air, intense emotions, or exercise can induce non-allergic asthma.
Asthma is classified as allergic and non-allergic. Allergens such as dust mites, pollen, and pet dander trigger allergic asthma, while factors like cold air, intense emotions, or exercise can induce non-allergic asthma.
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Asthma is a chronic respiratory ailment that requires careful management due to its varying symptoms and influencing factors. It is characterized by airway inflammation, bronchial hyperresponsiveness, and reversible airflow obstruction, leading to symptoms like wheezing, shortness of breath, chest tightness, and coughing. The symptom frequency and intensity may vary considerably over time. It is also linked to immune system responses to allergens and irritants, highlighting the complex...
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Asthma is a prevalent chronic respiratory condition marked by inflammation and hyperresponsiveness of the airways. Its pathophysiology involves complex interactions among inflammatory pathways, immune responses, and neural mechanisms.
Additionally, environmental and genetic factors play crucial roles in determining an individual's susceptibility to asthma and the severity of their condition.
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Additionally, environmental and genetic factors play crucial roles in determining an individual's susceptibility to asthma and the severity of their condition.
Critical processes in asthma pathophysiology include:
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Asthma is a chronic inflammatory disorder of the airways characterized by variable airflow obstruction and heightened bronchial responsiveness to a wide range of triggers. The underlying inflammation leads to airway swelling, mucus hypersecretion, and smooth muscle constriction, all of which narrow the airway lumen and impede airflow. Clinically, asthma presents with recurrent episodes of wheezing, shortness of breath, chest tightness, and coughing, symptoms that typically vary in intensity and...
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Asthma presents with a characteristic pattern of episodic respiratory symptoms that reflect underlying airway inflammation, bronchoconstriction, and mucus hypersecretion. Although severity varies among individuals, certain clinical manifestations are considered hallmarks of the disorder and often guide diagnosis and assessment.Respiratory SymptomsA persistent cough is one of the most common early features of asthma. It is frequently dry and tends to worsen at night or in the early morning,...

