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Are overweight asthmatics more difficult to control?

P Saint-Pierre1, A Bourdin, P Chanez

  • 1Institut Universitaire de Recherche Clinique, Laboratoire de Biostatistique, Montpellier, France.

Allergy
|December 21, 2005
PubMed
Summary

Overweight adults with asthma have a significantly lower chance of achieving acceptable asthma control. This highlights the need for tailored asthma management strategies for individuals with excess weight.

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Area of Science:

  • Pulmonology
  • Clinical Research
  • Obesity Medicine

Background:

  • The link between asthma and obesity is complex and requires further investigation.
  • Understanding how excess weight impacts asthma control is crucial for effective patient management.

Purpose of the Study:

  • To evaluate the influence of excess weight on the evolution of asthma control in adult asthmatics.
  • To assess the effect of Body Mass Index (BMI) on transitions between acceptable and unacceptable asthma control states.

Main Methods:

  • A prospective cohort study enrolled 406 adult asthmatics with persistent asthma.
  • A continuous time homogeneous Markov model analyzed transitions in asthma control based on BMI (<25 vs. ≥25).
  • Confounding factors including asthma severity and oral corticosteroid use were adjusted for.

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Main Results:

  • Overweight asthmatics (BMI ≥25) had a significantly lower risk of improving asthma control (RR=0.45 univariate, RR=0.53 multivariate).
  • Transition probabilities for achieving acceptable control stabilized faster in normal-weight individuals (200 days vs. 300 days).

Conclusions:

  • Excess weight is associated with poorer asthma control evolution in adult asthmatics.
  • These findings necessitate the development of specific asthma management strategies for overweight and obese patients.