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Risk Factors

Predicting the requiring intubation and invasive mechanical ventilation among asthmatic exacerbation-related hospitalizations

, MD & , MD
Pages 507-513 | Received 27 Aug 2020, Accepted 16 Nov 2020, Published online: 02 Dec 2020
 

Abstract

Objective

To identify the predictors of requiring intubation and invasive mechanical ventilation (IMV) in asthmatic exacerbation (AE)-related hospitalizations.

Methods

This study was conducted in southern Thailand between October 2016 and September 2018. The characteristics and clinical findings of patients admitted for AE requiring intubation and IMV were analyzed. The variables were evaluated by univariate and multivariate analysis to identify the independent predictors.

Results

A total of 509 patients with a median age of 53 years were included in the study. Being female (60.2%), having no previous use of a controller (64.5%), having a history of smoking, and having a high level of white blood cell count (14,820 cells/mm3) were the significantly more common characteristics of the patients requiring mechanical ventilation. Univariate analysis showed that being male (OR = 1.96 95% CI, 1.22-3.13), having a history of 1–2 AEs in the past 12 months (OR = 3.27 95% CI, 1.75–6.12), and having an absolute eosinophil count ≥300 cells/mm3 (OR = 1.68 95% CI, 1.05–2.69) were associated with patients requiring IMV, whereas the patients who were taking a reliever (OR = 0.36 95% CI, 0.23–0.57) and controller (OR = 0.42 95% CI, 0.27–0.68) were associated with a decreased risk of requiring intubation and IMV. In multivariate analysis, only 1–2 AEs within the past 12 months (OR = 3.12, 95% CI, 1.19–8.21) was an independent predictor of requiring intubation and IMV in patients with AE-related hospitalization (p = 0.021).

Conclusions

This study found that a history of 1–2 AEs in the past 12 months was a strong independent predictor for the requirement of intubation and IMV in patients hospitalized for AE-related conditions.

Acknowledgement

The authors would like to thank John Wangwanitkul for his support in academic proofreading.

Disclosure statement

The authors report no conflicts of interest.

Additional information

Funding

The authors received no financial support for the research, authorship, and/or publication of this article.

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