Reblog: Geography and Food Allergies

As a past, current, and future allergy sufferer, I found this review interesting. Allergies can be regional, based on local weather, regional climate, and distribution of vegetation. I had not thought to map the incidencen of childhood allergies, thinking those were coincident with population size. I might be wrong in thinking that, perhaps, based on maps and geographic analysis.

GIS and Science

Clinical Pediatrics JournalClinical Pediatrics, published online 17 May 2012

Ruchi S. Gupta, Elizabeth E. Springston, Bridget Smith, Manoj R. Warrier, Jacqueline Pongracic and Jane L. Holl

“Objective: The aim of this study was to describe the distribution of childhood food allergy in the United States.

“Methods: A randomized survey was administered electronically from June 2009 to February 2010 to adults in US households with at least 1 child younger than 18 years. Data were analyzed as weighted proportions to estimate prevalence and severity of food allergy by geographic location. Multiple logistic regression models were constructed to estimate the association between geographic location and food allergy.

“Results: Data were analyzed for 38 465 children. Increasing population density corresponded with increasing prevalence, from 6.2% in rural areas (95% confidence interval [CI] = 5.6-6.8) to 9.8% in urban centers (95% CI = 8.6-11.0). Odds of food allergy were graded, with odds in urban versus…

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