[The clinical study of the relationship between allergic rhinitis and allergic asthma in the patients with autumnal pollinosis].
OBJECTIVE
To investigate the relationship between allergic rhinitis and allergic asthma in the patients with autumnal pollinosis.


METHODS
1120 patients with autumnal pollinosis, aged 5 - 75, excluding those with typical symptoms of seasonal rhinitis or asthma but with positive skin test and serum IgE specific to dustmite and fungi, underwent standardized clinical questionnaire survey, including the onset age, onset time, and symptoms as well as the severity of asthma, skin tests, and examination of serum IgE specific to autumnal pollens.


RESULTS
The average onset age of the allergic rhinitis patients induced by autumnal pollens was 27.9 years, significantly younger than that of the allergic asthma patients (32.6 years, P < 0.001). Out of the 1120 patients 1096 (97.9%) had allergic rhinitis, 602 (53.8%) had asthma, 507 (45.3%) had allergic rhinitis only, and 10 (0.9%) had allergic asthma only. Among the 1096 patients with allergic rhinitis 585 (53.4%) suffered from seasonal asthma. Among the 602 patients with asthma 585 (97.2%) suffered from seasonal rhinitis, and 183 of the 602 patients (30.8%) needed emergency treatment.


CONCLUSIONS
Autumnal pollens are very important causes which induce asthma during autumnal season in northern China.
Yin
Jia
J
Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China.
Yue
Feng-min
FM
Wang
Liang-lu
LL
He
Hai-juan
HJ
Xu
Tao
T
Zhang
Hong-yu
HY
Li
Hong
H
Wen
Li-ping
LP
Sun
Jing-lü
JL
Gu
Jian-qing
JQ
Han
Shao-mei
SM
Ye
Shi-tai
ST
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001249:Asthma / Q000150:complications* / Q000453:epidemiology; D002648:Child; D002675:Child, Preschool; D002681:China / Q000453:epidemiology; D005260:Female; D006801:Humans; D007073:Immunoglobulin E / Q000097:blood; D008297:Male; D008875:Middle Aged; D012221:Rhinitis, Allergic, Perennial / Q000150:complications* / Q000453:epidemiology; D006255:Rhinitis, Allergic, Seasonal / Q000097:blood / Q000150:complications* / Q000453:epidemiology
D007073:Immunoglobulin E