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The pattern of indoor and outdoor respiratory allergens in asthmatic adult patients in a humid and desert newly developed country.
Eur Ann Allergy Clin Immunol 2003; 35(8):300-5EA

Abstract

BACKGROUND

Studies have shown that allergens are very important sensitizing agents in patients with asthma. Respiratory disorders such as asthma and allergic rhinitis are common in the State of Qatar.

OBJECTIVE

To characterize the most frequent indoor and outdoor respiratory allergens involved in bronchial asthma and allergic rhinitis in the State of Qatar.

DESIGN

A hospital-based prospective study conducted.

SETTING

Allergy Laboratory at the Hamad General Hospital and Hamad Medical Corporation, Doha, State of Qatar.

PATIENTS

Adult patients over 12 years of age diagnosed with bronchial asthma and/or allergic rhinitis who were referred for allergy skin pick test. 1106 adult patients recruited with respiratory diseases of suspected allergic origin who attended Allergy Clinic at the Hamad General Hospital, during three years from January 2001 to April 2003. Total of 1106 whom 607 were females (54.9%) and 499 were males (45.1%) and their mean was age 30 years (12-48).

METHODS

Skin Prick Test [SPT] was performed on 1106 patients for common allergens whom The blood sample was taken for measuring specific IgE concentration.

RESULTS

There were 1106 patients studied and 569 patients (51.4%) had positive skin prick test. All patients expressed clinical allergy, 464 patients (52%) had asthma and rhinitis, 286 patients (32%) had rhinitis alone and 137 patients (15%) had asthma alone. The population sample had a higher prevalence of diagnosed asthma among females (32.7%) than in males (29.8%) and also skin conditions such as eczema, pruritus, and urticaria higher in females (9.1%%) than males (7.0%). Similarly, males had higher prevalence of allergic rhinitis (86.0%) than in females. There were 318 (55.9%) patients whose asthma developed before they were 10 years old. The percentage of asthmatic patients with a positive family history of asthma was 44%. The most common allergens detected in order of frequency were Dermatophagoides Pteronyssimus (Der p l) in 248 patients (41.6%), Dermatophagoides Farinae (Der f l) in 220 patients (36.9%), Cockroach allergen (Bla g l) in 192 patients (32.2%). The study showed that females are more exposed to pollen, grasses and tress, but males are mostly exposed to mites and insects. Furthermore, Molds and Yeast were common among males.

CONCLUSION

In conclusion, the frequency of indoor and outdoor allergens in state of Qatar, based on skin prick test study showed the dominance of house dust mites, pollen, grasses which are more or less same to other countries with similar and even with different climate. Reduced exposure to these agents will help control raising severity of these disease.

Authors

No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

14653049

Citation

Sattar, Hisham A., et al. "The Pattern of Indoor and Outdoor Respiratory Allergens in Asthmatic Adult Patients in a Humid and Desert Newly Developed Country." European Annals of Allergy and Clinical Immunology, vol. 35, no. 8, 2003, pp. 300-5.
Sattar HA, Mobayed H, al-Mohammed AA, et al. The pattern of indoor and outdoor respiratory allergens in asthmatic adult patients in a humid and desert newly developed country. Eur Ann Allergy Clin Immunol. 2003;35(8):300-5.
Sattar, H. A., Mobayed, H., al-Mohammed, A. A., Ibrahim, A. S., Jufairi, A. A., Balamurugan, P., ... Bener, A. (2003). The pattern of indoor and outdoor respiratory allergens in asthmatic adult patients in a humid and desert newly developed country. European Annals of Allergy and Clinical Immunology, 35(8), pp. 300-5.
Sattar HA, et al. The Pattern of Indoor and Outdoor Respiratory Allergens in Asthmatic Adult Patients in a Humid and Desert Newly Developed Country. Eur Ann Allergy Clin Immunol. 2003;35(8):300-5. PubMed PMID: 14653049.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The pattern of indoor and outdoor respiratory allergens in asthmatic adult patients in a humid and desert newly developed country. AU - Sattar,Hisham A, AU - Mobayed,Hassan, AU - al-Mohammed,Ahmed A, AU - Ibrahim,Abdulsalam S, AU - Jufairi,A Aziz, AU - Balamurugan,P, AU - Mary,V P, AU - Bener,Abdulbari, PY - 2003/12/5/pubmed PY - 2004/1/24/medline PY - 2003/12/5/entrez SP - 300 EP - 5 JF - European annals of allergy and clinical immunology JO - Eur Ann Allergy Clin Immunol VL - 35 IS - 8 N2 - BACKGROUND: Studies have shown that allergens are very important sensitizing agents in patients with asthma. Respiratory disorders such as asthma and allergic rhinitis are common in the State of Qatar. OBJECTIVE: To characterize the most frequent indoor and outdoor respiratory allergens involved in bronchial asthma and allergic rhinitis in the State of Qatar. DESIGN: A hospital-based prospective study conducted. SETTING: Allergy Laboratory at the Hamad General Hospital and Hamad Medical Corporation, Doha, State of Qatar. PATIENTS: Adult patients over 12 years of age diagnosed with bronchial asthma and/or allergic rhinitis who were referred for allergy skin pick test. 1106 adult patients recruited with respiratory diseases of suspected allergic origin who attended Allergy Clinic at the Hamad General Hospital, during three years from January 2001 to April 2003. Total of 1106 whom 607 were females (54.9%) and 499 were males (45.1%) and their mean was age 30 years (12-48). METHODS: Skin Prick Test [SPT] was performed on 1106 patients for common allergens whom The blood sample was taken for measuring specific IgE concentration. RESULTS: There were 1106 patients studied and 569 patients (51.4%) had positive skin prick test. All patients expressed clinical allergy, 464 patients (52%) had asthma and rhinitis, 286 patients (32%) had rhinitis alone and 137 patients (15%) had asthma alone. The population sample had a higher prevalence of diagnosed asthma among females (32.7%) than in males (29.8%) and also skin conditions such as eczema, pruritus, and urticaria higher in females (9.1%%) than males (7.0%). Similarly, males had higher prevalence of allergic rhinitis (86.0%) than in females. There were 318 (55.9%) patients whose asthma developed before they were 10 years old. The percentage of asthmatic patients with a positive family history of asthma was 44%. The most common allergens detected in order of frequency were Dermatophagoides Pteronyssimus (Der p l) in 248 patients (41.6%), Dermatophagoides Farinae (Der f l) in 220 patients (36.9%), Cockroach allergen (Bla g l) in 192 patients (32.2%). The study showed that females are more exposed to pollen, grasses and tress, but males are mostly exposed to mites and insects. Furthermore, Molds and Yeast were common among males. CONCLUSION: In conclusion, the frequency of indoor and outdoor allergens in state of Qatar, based on skin prick test study showed the dominance of house dust mites, pollen, grasses which are more or less same to other countries with similar and even with different climate. Reduced exposure to these agents will help control raising severity of these disease. SN - 1764-1489 UR - https://www.unboundmedicine.com/medline/citation/14653049/The_pattern_of_indoor_and_outdoor_respiratory_allergens_in_asthmatic_adult_patients_in_a_humid_and_desert_newly_developed_country_ L2 - https://medlineplus.gov/hayfever.html DB - PRIME DP - Unbound Medicine ER -