ArticleFrontiers in allergy2026
Pollen-induced allergic rhinitis in the central region of Inner Mongolia, China: prevalence, risk factors, and regional characteristics.
Article in Frontiers in allergy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Pollen-induced allergic rhinitis (PIAR) is a major public health burden in high-pollen regions of northern China (e.g., Ordos, southern Inner Mongolia Plateau). However, regional variations in PIAR across ecological zones (urban, agropastoral, desert, and mining zones), dominant allergens, and key risk factors remain understudied due to prior small-sample or narrow-scope research. Objective: This study aimed to investigate the prevalence, major risk factors, and current treatment patterns for PIAR in Ordos. Methods: From March to July 2023, a multicenter, randomized, stratified cross-sectional survey was conducted across nine areas in Ordos. Participants were recruited to complete in-person questionnaires and undergo skin prick tests (SPTs) for 16 common allergens. Pollen was collected and counted to monitor exposure levels. Results: Among the 4,303 participants, the prevalence rates of self-reported allergic rhinitis (SRAR), physician-diagnosed allergic rhinitis (PDAR), and PIAR were 52.89% (2,276/4,303), 34.70% (1,493/4,303), and 31.51% (1,356/4,303), respectively. The prevalence rates of PIAR in urban, agropastoral, desert, and mining areas were 30.46%, 39.55%, 29.09%, and 19.72%, respectively. Among patients with PIAR, the incidence of symptom onset was highest among urban residents and lowest among mining area residents. Conclusion: PIAR is highly prevalent in northern China's grasslands, with marked zone-specific variations.
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