Defining Emergency Department Asthma Visits for Public Health Surveillance, North Carolina, 2008–2009

Travers, Debbie; Lich, Kristen Hassmiller; Lippmann, Steven; Weinberger, Morris; Yeatts, Karin; Liao, Winston; Waller, Anna

doi:10.5888/pcd11.130329

Cited by 6 publications

(2 citation statements)

References 8 publications

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“…While data are available for asthma for up to 11 ranked secondary diagnoses, we included only persons with asthma as the primary diagnosis or first position secondary diagnosis as a compromise of sensitivity and specificity based on a prior work in asthma ED diagnosis. 43…”

Section: Methodsmentioning

confidence: 99%

Thunderstorms, Pollen, and Severe Asthma in a Midwestern, USA, Urban Environment, 2007–2018

et al. 2022

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Background: Previous research has shown an association between individual thunderstorm events in the presence of high pollen, commonly called thunderstorm asthma, and acute severe asthma events, but little work has studied risk over long periods of time, using detailed measurements of storms and pollen. Methods: We estimated change in the risk of asthma-related emergency room visits related to thunderstorm asthma events in the Minneapolis-St. Paul metropolitan area over the years 2007-2018. We defined thunderstorm asthma events as daily occurrence of two or more lightning strikes during high pollen periods interpolating weather and pollen monitor data and modeling lightning counts. We acquired daily counts of asthma-related emergency department visits from the Minnesota Hospital Association and used a quasi-Poisson time-series regression to estimate overall relative risk of emergency department visits during thunderstorm asthma events. Results: We observed a 1.047 times higher risk (95% confidence interval = 1.012, 1.083) of asthma-related emergency department visits on the day of thunderstorm asthma event. Our findings are robust to adjustment for temperature, humidity, wind, precipitation, ozone, PM 2.5 , day of week, and seasonal variation in asthma cases. Occurrence of lightning alone or pollen alone showed no association with the risk of severe asthma. A two-stage analysis combining individual zip code-level results shows similar RR, and we see no evidence of spatial correlation or spatial heterogeneity of effect. Discussion: Our results support an association between co-occurrence of lightning and pollen and risk of severe asthma events. Our approach incorporates lightning and pollen data and small-spatial area exposure and outcome counts.

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Section: Methodsmentioning

confidence: 99%

Thunderstorms, Pollen, and Severe Asthma in a Midwestern, USA, Urban Environment, 2007–2018

et al. 2022

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“…Because this model required 2 visits to assess potential moves, this analytic sample included only children with at least 2 visits. We also assessed whether results were sensitive to a stricter definition of asthma, because there is no gold-standard definition of asthma using ED or inpatient data (26). In the main analyses we defined an asthma ED visit or hospitalization as ICD-9-CM code 493 in any diagnosis field, and in sensitivity analyses we counted only ED visits or hospitalizations with ICD-9-CM code 493 in the primary (first) diagnosis field as an asthma visit.…”

Section: Methodsmentioning

confidence: 99%

Neighborhood Risk and Hospital Use for Pediatric Asthma, Rhode Island, 2005–2014

et al. 2019

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Introduction Studies consistently show that children living in poor neighborhoods have worse asthma outcomes. The objective of our study was to assess the association between negative neighborhood factors (ie, neighborhood risk) and pediatric asthma hospital use. Methods This retrospective study used data from children aged 2 to 17 years in a statewide (Rhode Island) hospital network administrative database linked to US Census Bureau data. We defined an asthma visit as an International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM) code of 493 in any diagnosis field. We used 8 highly correlated measures for each census-block group to construct an index of neighborhood risk. We used maps and linear regression to assess the association of neighborhood risk with average annual census-block–group rates of asthma emergency department visits and hospitalizations. We used multivariable analyses to identify child characteristics and neighborhood risk associated with an asthma revisit, accounting for the child’s sociodemographic information, season, and multiple measurements per child. Results From 2005 through 2014, we counted 359,195 visits for 146,889 children. Of these, 12,699 children (8.6%) had one or more asthma visits. Linear regression results showed 1.18 (95% confidence interval, 1.06–1.30) more average annual emergency departments visits per 100 children and 0.41 (95% confidence interval, 0.34–0.47) more average annual hospitalizations per 100 children in neighborhoods in the highest-risk index quintile than in neighborhoods in the lowest-risk index quintile. Conclusion Interventions to improve asthma outcomes among children should move beyond primary care or clinic settings and involve a careful evaluation of social context and environmental triggers.

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Association of School Infrastructure on Health and Achievement Among Children With Asthma

Zaeh

Eakin

et al. 2023

Academic Pediatrics

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Defining Emergency Department Asthma Visits for Public Health Surveillance, North Carolina, 2008–2009

Cited by 6 publications

References 8 publications

Thunderstorms, Pollen, and Severe Asthma in a Midwestern, USA, Urban Environment, 2007–2018

Thunderstorms, Pollen, and Severe Asthma in a Midwestern, USA, Urban Environment, 2007–2018

Neighborhood Risk and Hospital Use for Pediatric Asthma, Rhode Island, 2005–2014

Association of School Infrastructure on Health and Achievement Among Children With Asthma

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