Asthma Status and Risk of Incident Myocardial Infarction

A Population-Based Case-Control Study

Duk Won Bang, Chung Il Wi, Eun Na Kim, John Hagan, Veronique Lee Roger, Sheila Manemann, Brian Lahr, Euijung Ryu, Young J Juhn

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Background: The role of asthma status and characteristics of asthma in the risk of myocardial infarction (MI) are poorly understood. Objective: We determined whether asthma and its characteristics are associated with risk of MI. Methods: The study was designed as a population-based retrospective case-control study, which included all eligible incident MI cases between November 1, 2002, and May 31, 2006, and their matched controls. Asthma was ascertained using predetermined criteria. Active (current) asthma was defined as the occurrence of asthma-related episodes (asthma symptoms, use of asthma medications, unscheduled medical or emergency department visit, or hospitalization for asthma) within 1 year before MI index date. Results: There were 543 eligible incident MI cases during the study period. Of the 543 MI cases, 81 (15%) had a history of asthma before index date of MI, whereas 52 of 543 controls (10%) had such a history (adjusted odds ratio [OR]: 1.68; 95% CI: 1.06-2.66) adjusting for risk factors for MI and comorbid conditions (excluding chronic obstructive lung disease). Although inactive asthma did not increase the risk of MI, individuals with active asthma had a higher odds of MI, compared with those without asthma (adjusted OR: 3.18; 95% CI: 1.57-6.44) without controlling for chronic obstructive pulmonary disease (COPD). After adjusting for COPD, although asthma overall was no longer statistically significant (adjusted OR: 1.34, 95% CI: 0.84-2.15), active asthma still was associated (adjusted OR: 2.33, 95% CI: 1.12-4.82). Conclusion: Active asthma is an unrecognized risk factor for MI. Further studies are needed to assess the role of asthma control and medications in the risk of MI.

Original languageEnglish (US)
JournalJournal of Allergy and Clinical Immunology: In Practice
DOIs
StateAccepted/In press - Jul 31 2015

Fingerprint

Case-Control Studies
Asthma
Myocardial Infarction
Population
Odds Ratio
Chronic Obstructive Pulmonary Disease
Hospital Emergency Service
Hospitalization
History

Keywords

  • Asthma
  • Epidemiology
  • Inflammation
  • Myocardial infarction
  • Risk factors
  • Systemic

ASJC Scopus subject areas

  • Immunology and Allergy

Cite this

Asthma Status and Risk of Incident Myocardial Infarction : A Population-Based Case-Control Study. / Bang, Duk Won; Wi, Chung Il; Kim, Eun Na; Hagan, John; Roger, Veronique Lee; Manemann, Sheila; Lahr, Brian; Ryu, Euijung; Juhn, Young J.

In: Journal of Allergy and Clinical Immunology: In Practice, 31.07.2015.

Research output: Contribution to journalArticle

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title = "Asthma Status and Risk of Incident Myocardial Infarction: A Population-Based Case-Control Study",
abstract = "Background: The role of asthma status and characteristics of asthma in the risk of myocardial infarction (MI) are poorly understood. Objective: We determined whether asthma and its characteristics are associated with risk of MI. Methods: The study was designed as a population-based retrospective case-control study, which included all eligible incident MI cases between November 1, 2002, and May 31, 2006, and their matched controls. Asthma was ascertained using predetermined criteria. Active (current) asthma was defined as the occurrence of asthma-related episodes (asthma symptoms, use of asthma medications, unscheduled medical or emergency department visit, or hospitalization for asthma) within 1 year before MI index date. Results: There were 543 eligible incident MI cases during the study period. Of the 543 MI cases, 81 (15{\%}) had a history of asthma before index date of MI, whereas 52 of 543 controls (10{\%}) had such a history (adjusted odds ratio [OR]: 1.68; 95{\%} CI: 1.06-2.66) adjusting for risk factors for MI and comorbid conditions (excluding chronic obstructive lung disease). Although inactive asthma did not increase the risk of MI, individuals with active asthma had a higher odds of MI, compared with those without asthma (adjusted OR: 3.18; 95{\%} CI: 1.57-6.44) without controlling for chronic obstructive pulmonary disease (COPD). After adjusting for COPD, although asthma overall was no longer statistically significant (adjusted OR: 1.34, 95{\%} CI: 0.84-2.15), active asthma still was associated (adjusted OR: 2.33, 95{\%} CI: 1.12-4.82). Conclusion: Active asthma is an unrecognized risk factor for MI. Further studies are needed to assess the role of asthma control and medications in the risk of MI.",
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AU - Hagan, John

AU - Roger, Veronique Lee

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AB - Background: The role of asthma status and characteristics of asthma in the risk of myocardial infarction (MI) are poorly understood. Objective: We determined whether asthma and its characteristics are associated with risk of MI. Methods: The study was designed as a population-based retrospective case-control study, which included all eligible incident MI cases between November 1, 2002, and May 31, 2006, and their matched controls. Asthma was ascertained using predetermined criteria. Active (current) asthma was defined as the occurrence of asthma-related episodes (asthma symptoms, use of asthma medications, unscheduled medical or emergency department visit, or hospitalization for asthma) within 1 year before MI index date. Results: There were 543 eligible incident MI cases during the study period. Of the 543 MI cases, 81 (15%) had a history of asthma before index date of MI, whereas 52 of 543 controls (10%) had such a history (adjusted odds ratio [OR]: 1.68; 95% CI: 1.06-2.66) adjusting for risk factors for MI and comorbid conditions (excluding chronic obstructive lung disease). Although inactive asthma did not increase the risk of MI, individuals with active asthma had a higher odds of MI, compared with those without asthma (adjusted OR: 3.18; 95% CI: 1.57-6.44) without controlling for chronic obstructive pulmonary disease (COPD). After adjusting for COPD, although asthma overall was no longer statistically significant (adjusted OR: 1.34, 95% CI: 0.84-2.15), active asthma still was associated (adjusted OR: 2.33, 95% CI: 1.12-4.82). Conclusion: Active asthma is an unrecognized risk factor for MI. Further studies are needed to assess the role of asthma control and medications in the risk of MI.

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