BACKGROUND: Over the past decade, there has been a worldwide largely unexplained increase in the incidence of type 1 diabetes in young children. This study explores the quantitative role of exposure to specific air pollutants in the development of type 1 diabetes in children. METHODS: A total of 402 children were retrospectively studied. Zip code-related, time-specific birth-to-diagnosis exposure to five ambient air pollutants was obtained for 102 children with type 1 diabetes and 300 healthy children receiving care at a single hospital. Pollution exposure levels were created by summing up zip code-specific pollution data and dividing by months of exposure from birth to diagnosis. Analysis employed chi2, two-tailed independent sample t-test and unconditional logistic regression. RESULTS: Odds ratio (OR) was significantly high for cumulative exposure to ambient ozone (O3) and sulfate (SO4) in cases compared with controls, OR = 2.89 [95% confidence interval (CI) = 1.80-4.62] and OR = 1.65 (CI = 1.20-2.28), respectively, even after adjustment for several potential confounders. Passive smoking was more frequent in children with diabetes (30 vs. 10%, p = 0.001). Attending day care and breast feeding in infancy were less frequent in children with diabetes (14 vs. 23%, p = 0.025; 59 vs. 78%, p = 0.001). Family history of diabetes, autoimmune disease and drug abuse was more frequent in cases (p < 0.01). CONCLUSION: Cumulative exposure to ozone and sulfate in ambient air may predispose to the development of type 1 diabetes in children. Early infant formula feeding and passive smoking in the household may precipitate or accelerate the onset of type 1 diabetes.
BACKGROUND: Over the past decade, there has been a worldwide largely unexplained increase in the incidence of type 1 diabetes in young children. This study explores the quantitative role of exposure to specific air pollutants in the development of type 1 diabetes in children. METHODS: A total of 402 children were retrospectively studied. Zip code-related, time-specific birth-to-diagnosis exposure to five ambient air pollutants was obtained for 102 children with type 1 diabetes and 300 healthy children receiving care at a single hospital. Pollution exposure levels were created by summing up zip code-specific pollution data and dividing by months of exposure from birth to diagnosis. Analysis employed chi2, two-tailed independent sample t-test and unconditional logistic regression. RESULTS: Odds ratio (OR) was significantly high for cumulative exposure to ambient ozone (O3) and sulfate (SO4) in cases compared with controls, OR = 2.89 [95% confidence interval (CI) = 1.80-4.62] and OR = 1.65 (CI = 1.20-2.28), respectively, even after adjustment for several potential confounders. Passive smoking was more frequent in children with diabetes (30 vs. 10%, p = 0.001). Attending day care and breast feeding in infancy were less frequent in children with diabetes (14 vs. 23%, p = 0.025; 59 vs. 78%, p = 0.001). Family history of diabetes, autoimmune disease and drug abuse was more frequent in cases (p < 0.01). CONCLUSION: Cumulative exposure to ozone and sulfate in ambient air may predispose to the development of type 1 diabetes in children. Early infant formula feeding and passive smoking in the household may precipitate or accelerate the onset of type 1 diabetes.
Authors: Andres R Henriquez; Samantha J Snow; Mette C Schladweiler; Colette N Miller; Urmila P Kodavanti Journal: Inhal Toxicol Date: 2020-05-04 Impact factor: 2.724
Authors: Desinia B Miller; Samantha J Snow; Andres Henriquez; Mette C Schladweiler; Allen D Ledbetter; Judy E Richards; Debora L Andrews; Urmila P Kodavanti Journal: Toxicol Appl Pharmacol Date: 2016-06-28 Impact factor: 4.219
Authors: C R Cardwell; L C Stene; G Joner; E A Davis; O Cinek; J Rosenbauer; J Ludvigsson; C Castell; J Svensson; M J Goldacre; T Waldhoer; J Polanska; S G A Gimeno; L-M Chuang; R C Parslow; E J K Wadsworth; A Chetwynd; P Pozzilli; G Brigis; B Urbonaite; S Sipetić; E Schober; C Ionescu-Tirgoviste; C E de Beaufort; D Stoyanov; K Buschard; C C Patterson Journal: Diabetologia Date: 2010-01-10 Impact factor: 10.122
Authors: Mamta Behl; Deepa Rao; Kjersti Aagaard; Terry L Davidson; Edward D Levin; Theodore A Slotkin; Supriya Srinivasan; David Wallinga; Morris F White; Vickie R Walker; Kristina A Thayer; Alison C Holloway Journal: Environ Health Perspect Date: 2012-12-11 Impact factor: 9.031