title: [Correlation between the visiting rate of patients with allergic rhinitis and airborne pollen concentrations in Beijing in recent 3 years].
abstract: Objective:To evaluate the daily airborne pollen concentrations and visiting rate of patients with allergic rhinitis (AR) and their correlation during 2012-2014 in Beijing.Methods:Daily airborne pollen concentrations (55 998 numbers in total and 549 numbers in average) and its constitution from April to September each year (2012 to 2014) were compared. The number of patients with AR (44 203 in total) who visited the outpatient department of Otorhinolaryngology Head and Neck Surgery, Peking University Third Hospital between January 2012 and December 2014 was analyzed by month. Using SPSS 22.0 software,Kruskal-Wallistest was done for the comparison of visiting rate of patients with AR and airborne pollen concentrations. Correlation analysis between them was made as well.Results:χ(2) value of airborne pollen concentrations between different months in 2012 to 2014 was 110.7, 108.4 and 121.4, respectively; allP<0.01. The airborne pollen concentrations had two peaks per year, respectively: April to May, August to September. χ(2) value of visiting rate of patients with AR between different months in 2012 to 2014 was 175.0, 185.1 and 134.5, respectively; allP<0.01. Visiting rate of patients with AR showed two scattering peaks each year, respectively: April to May, August to September. The highest pollen concentration of spring (April to May) was in early and middle April. Tree pollen was the major portion in spring, which were poplar pollen, pine tree pollen, ash tree pollen, cypress tree pollen and birch trees pollen. The highest pollen concentration of autumn (August to September) was in late August and early September. Weed pollen was the major portion in summer and autumn, which were artemisia pollen, chenopodiaceae pollen and humulus japonicas pollen. The visiting rate of patients with AR showed significant correlation with airborne pollen concentrations (rvalue was 0.537, 0.484 and 0.566, respectively; allP<0.01).Conclusion:The visiting rate of patients with AR showed positive correlation with airborne pollen concentrations in recent three years.
authors.affiliation: Department of Otorhinolaryngology Head and Neck Surgery, Peking University Third Hospital, Beijing 100191, China.
authors.forename: W N
authors.initials: WN
authors.lastname: Hu
authors.affiliation: Department of Otorhinolaryngology Head and Neck Surgery, Peking University Third Hospital, Beijing 100191, China.
authors.forename: L
authors.initials: L
authors.lastname: Zhu
authors.affiliation: Department of Otorhinolaryngology Head and Neck Surgery, Peking University Third Hospital, Beijing 100191, China.
authors.forename: L F
authors.initials: LF
authors.lastname: Xie
authors.affiliation: Department of Otorhinolaryngology Head and Neck Surgery, Peking University Third Hospital, Beijing 100191, China.
authors.forename: F Z
authors.initials: FZ
authors.lastname: Zhang
authors.affiliation: Department of Clinical Medicine, Peking University Health Science Center, Beijing 100191, China.
authors.forename: M Y
authors.initials: MY
authors.lastname: Bai
authors.affiliation: Department of Clinical Medicine, Peking University Health Science Center, Beijing 100191, China.
authors.forename: N
authors.initials: N
authors.lastname: Wang
authors.affiliation: Department of Otorhinolaryngology, Beijing Aerospace General Hospital, Beijing 100076, China.
authors.forename: Z W
authors.initials: ZW
authors.lastname: Sun
mesh_terms: D000485:Allergens / Q000032:analysis*; D000554:Ambulatory Care Facilities / Q000706:statistics & numerical data*; D006801:Humans; D010036:Otolaryngology / Q000706:statistics & numerical data*; D011058:Pollen; D065631:Rhinitis, Allergic / Q000453:epidemiology*; D006255:Rhinitis, Allergic, Seasonal / Q000453:epidemiology; D012621:Seasons; D012984:Software; D018709:Statistics, Nonparametric; D013997:Time Factors; D014197:Trees
chemical_list: D000485:Allergens
keywords: Pollen; Rhinitis, allergic, seasonal