Association between climate factors, pollen counts, and childhood hay fever prevalence in the United States

Silverberg, Jonathan I.; Braunstein, Marc; Lee-Wong, Mary

doi:10.1016/j.jaci.2014.08.003

Cited by 61 publications

(48 citation statements)

References 24 publications

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“…We found that the prevalence of rhinitis in our population was 19.9 %, a rate which is similar to previously reported figures [1, 7, 10]. In contrast, we found the prevalence of eczema in our population to be 6.7 %, a rate lower than previous reports [1, 8].…”

Section: Discussionsupporting

confidence: 86%

The epidemiologic characteristics of healthcare provider-diagnosed eczema, asthma, allergic rhinitis, and food allergy in children: a retrospective cohort study

et al. 2016

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BackgroundThe rates of childhood allergic conditions are changing, prompting the need for continued surveillance. Examination of healthcare provider-based diagnosis data is an important and lacking methodology needed to complement existing studies that rely on participant reporting.MethodsUtilizing our care network of 1,050,061 urban and sub-urban children, we defined two retrospective cohorts: (1) a closed birth cohort of 29,662 children and (2) a cross-sectional cohort of 333,200 children. These cohorts were utilized to determine the epidemiologic characteristics of the conditions studied. Logistic regression was utilized to determine the extent to which food allergy was associated with respiratory allergy.ResultsIn our birth cohort, the peak age at diagnosis of eczema, asthma, rhinitis, and food allergy was between 0 and 5 months (7.3 %), 12 and 17 months (8.7 %), 24 and 29 months (2.5 %), and 12 and 17 months (1.9 %), respectively. In our cross-sectional cohort, eczema and rhinitis prevalence rates were 6.7 % and 19.9 %, respectively. Asthma prevalence was 21.8 %, a rate higher than previously reported. Food allergy prevalence was 6.7 %, with the most common allergenic foods being peanut (2.6 %), milk (2.2 %), egg (1.8 %), shellfish (1.5 %), and soy (0.7 %). Food allergy was associated with development of asthma (OR 2.16, 95 % CI 1.94-2.40), and rhinitis (OR 2.72, 95 % CI 2.45-3.03).ConclusionsCompared with previous reports, we measure lower rates of eczema and higher rates of asthma. The distribution of the major allergenic foods diverged from prior figures, and food allergy was associated with the development of respiratory allergy. The utilization of provider-based diagnosis data contributes an important and lacking methodology that complements existing studies.Electronic supplementary materialThe online version of this article (doi:10.1186/s12887-016-0673-z) contains supplementary material, which is available to authorized users.

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Section: Discussionsupporting

confidence: 86%

The epidemiologic characteristics of healthcare provider-diagnosed eczema, asthma, allergic rhinitis, and food allergy in children: a retrospective cohort study

et al. 2016

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“…Climate elements could also play an important role in local pollen allergen exposure that will directly affect the onset and severity of PiAR . Several recent studies proposed that both direct effects of climate factors and their indirect effects (through their effect on physical, chemical, and biological aerosols) on intensity or period of pollen exposure should be explored in detail . In our study, temperature and precipitation were risk factors (RR > 1), while wind speed and air pressure were protective factors (RR < 1, Table ).…”

Section: Discussionmentioning

confidence: 57%

“…Luo et al found that the main sensitizing pollens in Guangdong (Southern China) which induced AR were bermuda , timothy , and humulus . Climate change may also influence pollen production which can induce allergic manifestations and thereby the development of AR . Weather conditions, including rainfall, atmospheric temperature, humidity, wind speed, and wind direction, may also alter the seasonality of pollen as well as the concentration of plant pollens which can subsequently influence the occurrence of AR .…”

Section: Introductionmentioning

confidence: 99%

Prevalence of pollen‐induced allergic rhinitis with high pollen exposure in grasslands of northern China

Wang

Zhuang

et al. 2018

Allergy

117

113

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BackgroundThe aim of this study was to investigate the prevalence of epidemiologic and physician‐diagnosed pollen‐induced AR (PiAR) in the grasslands of northern China and to study the impact of the intensity and time of pollen exposure on PiAR prevalence.MethodsA multistage, clustered and proportionately stratified random sampling with a field interviewer‐administered survey study was performed together with skin prick tests (SPT) and measurements of the daily pollen count.ResultsA total of 6043 subjects completed the study, with a proportion of 32.4% epidemiologic AR and 18.5% PiAR. The prevalence was higher in males than females (19.6% vs 17.4%, P = .024), but no difference between the two major residential and ethnic groups (Han and Mongolian) was observed. Subjects from urban areas showed higher prevalence of PiAR than rural areas (23.1% vs 14.0%, P < .001). Most PiAR patients were sensitized to two or more pollens (79.4%) with artemisia, chenopodium, and humulus scandens being the most common pollen types, which were similarly found as the top three sensitizing pollen allergens by SPT. There were significant regional differences in the prevalence of epidemiologic AR (from 18.6% to 52.9%) and PiAR (from 10.5% to 31.4%) among the six areas investigated. PiAR symptoms were positively associated with pollen counts, temperature, and precipitation (P < .05), but negatively with wind speed and pressure P < .05).ConclusionPollen‐induced AR (PiAR) prevalence in the investigated region is extremely high due to high seasonal pollen exposure, which was influenced by local environmental and climate conditions.

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“…Climate change contributes to increases in chemical air pollutant and aeroallergen production and their distribution . Climate change affects vegetation, resulting in changes in the start, duration, intensity, and distribution of allergenic pollen . Biedermann et al have shown that climate change has increased the levels of birch pollen and period of exposure, with a higher prevalence of birch pollen sensitization.…”

Section: Mechanismsmentioning

confidence: 99%

“…33,36,41,42 Climate change affects vegetation, resulting in changes in the start, duration, intensity, and distribution of allergenic pollen. 33,36,41,43,44 Biedermann et al 36 have shown that climate change has increased the levels of birch pollen and period of exposure, with a higher prevalence of birch pollen sensitization. The extremely high prevalence of pollen-induced AR in the grasslands of Northern China is associated with high seasonal pollen exposure influenced by local environmental and climate conditions.…”

mentioning

confidence: 99%

Recent developments and highlights in allergic rhinitis

Meng

Wang

Zhang

2019

Allergy

125

105

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Allergic rhinitis (AR) is a disease with high prevalence all over the world and therefore needs to be thoroughly investigated and treated accordingly. The mechanisms underlying the pathology and treatment of AR have been widely studied, but many aspects remain unclear and warrant further investigations. This review presents an overview of recently published papers highlighting the risk factors, mechanisms, and treatment of AR. Additionally, recent studies discussing the role of single nucleotide polymorphism, DNA methylation, regulatory B cells, group 2 innate lymphoid cells, immunotherapy, and biologics in AR are also covered. K E Y W O R D Sallergic rhinitis, biologics, epigenetics, risk factors, treatment | 2321 MENG Et al.

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Association between climate factors, pollen counts, and childhood hay fever prevalence in the United States

Cited by 61 publications

References 24 publications

The epidemiologic characteristics of healthcare provider-diagnosed eczema, asthma, allergic rhinitis, and food allergy in children: a retrospective cohort study

The epidemiologic characteristics of healthcare provider-diagnosed eczema, asthma, allergic rhinitis, and food allergy in children: a retrospective cohort study

Prevalence of pollen‐induced allergic rhinitis with high pollen exposure in grasslands of northern China

Recent developments and highlights in allergic rhinitis

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