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Age-dependent effect of ambient ozone on emergency asthma hospitalizations in Hong Kong  Yuanrong Dai, MD, Hong Qiu, PhD, Shengzhi Sun, PhD, Yang Yang,

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Presentation on theme: "Age-dependent effect of ambient ozone on emergency asthma hospitalizations in Hong Kong  Yuanrong Dai, MD, Hong Qiu, PhD, Shengzhi Sun, PhD, Yang Yang,"— Presentation transcript:

1 Age-dependent effect of ambient ozone on emergency asthma hospitalizations in Hong Kong 
Yuanrong Dai, MD, Hong Qiu, PhD, Shengzhi Sun, PhD, Yang Yang, MPhil, Hualiang Lin, PhD, Linwei Tian, PhD  Journal of Allergy and Clinical Immunology  Volume 141, Issue 4, Pages e5 (April 2018) DOI: /j.jaci Copyright © 2018 American Academy of Allergy, Asthma & Immunology Terms and Conditions

2 Fig 1 Plots of distributed lag estimates of age-stratified percent changes and 95% CIs in asthma emergency hospitalizations with an IQR increase in air pollutant along the lag 0-20 days, derived from the single- and 2-pollutant regression models of data in Hong Kong. IQR, Interquartile range. Journal of Allergy and Clinical Immunology  , e5DOI: ( /j.jaci ) Copyright © 2018 American Academy of Allergy, Asthma & Immunology Terms and Conditions

3 Fig E1 Time-series plots of ambient ozone concentrations (μg/m3) and asthma emergency hospitalizations stratified by 3 age groups, from 2005 to 2014 in Hong Kong. Journal of Allergy and Clinical Immunology  , e5DOI: ( /j.jaci ) Copyright © 2018 American Academy of Allergy, Asthma & Immunology Terms and Conditions

4 Fig E2 Plots of distributed lag estimates of age- and season-stratified percent changes and 95% CIs in asthma emergency hospitalizations with an IQR increase in ozone along the lag 0-20 days, based on data in Hong Kong. The general patterns are similar between seasons. IQR, Interquartile range. Journal of Allergy and Clinical Immunology  , e5DOI: ( /j.jaci ) Copyright © 2018 American Academy of Allergy, Asthma & Immunology Terms and Conditions

5 Fig E3 Plots of distributed lag estimates of age- and sex-stratified percent changes and 95% CIs in asthma emergency hospitalizations with an IQR increase in ozone along the lag 0-20 days, based on data in Hong Kong. The associations did not vary by sex. IQR, Interquartile range. Journal of Allergy and Clinical Immunology  , e5DOI: ( /j.jaci ) Copyright © 2018 American Academy of Allergy, Asthma & Immunology Terms and Conditions

6 Fig E4 Plots of distributed lag estimates of age-stratified percent changes and 95% CIs in asthma emergency hospitalizations with an IQR increase in air pollutant levels along the lag 0-20 days, derived from the single- and 2-pollutant regression models of data in Hong Kong. The results with young children 6 years and younger are similar to those with children younger than 18 years. IQR, Interquartile range. Journal of Allergy and Clinical Immunology  , e5DOI: ( /j.jaci ) Copyright © 2018 American Academy of Allergy, Asthma & Immunology Terms and Conditions

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