The Association between Obstructive Sleep Apnea and Metabolic Markers and Lipid Profiles

PLoS One. 2015 Jun 26;10(6):e0130279. doi: 10.1371/journal.pone.0130279. eCollection 2015.

Abstract

Purpose: The purpose of this study was to investigate the association between apnea-hypopnea index (AHI) and metabolic markers and whether the elevated risk of Metabolic Syndrome (MetS) is related to Obstructive Sleep Apnea (OSA).

Methods: This cross-sectional study recruited 246 male bus drivers from one transportation company in Taiwan. Each participant was evaluated by a polysomnography (PSG) test and by blood lipids examination. Severity of OSA was categorized according to the apnea-hypopnea index (AHI).

Results: The results showed that a 73.3% prevalence of MetS in OSA (AHI > 15) and a 80.0% prevalence of MetS in severe OSA (AHI > 30) were found. After adjusting for confounding variables, an increased level of Body-Mass Index (BMI) and two non-MetS cardiovascular risk factors, total cholesterol/HDL-C ratio and TG/HDL-C ratio was significantly associated with AHI in subjects with severe OSA. MetS was about three times to be present in subjects with severe OSA, even adjusted for BMI.

Conclusions: The findings showed a high prevalence of MetS in OSA among professional drivers, especially in the severe group category. BMI was the major contributing factor to OSA. However, the present study did not find a sensitive clinical marker of a detrimental metabolic profile in OSA patients.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Biomarkers
  • Blood Glucose
  • Blood Pressure
  • Female
  • Humans
  • Lipid Metabolism*
  • Lipids / blood*
  • Male
  • Metabolic Syndrome / complications
  • Metabolic Syndrome / epidemiology
  • Middle Aged
  • Obesity / complications
  • Oxygen Consumption
  • Polysomnography
  • Prevalence
  • Risk Factors
  • Severity of Illness Index
  • Sleep Apnea, Obstructive / blood*
  • Sleep Apnea, Obstructive / complications
  • Sleep Apnea, Obstructive / diagnosis
  • Sleep Apnea, Obstructive / metabolism*

Substances

  • Biomarkers
  • Blood Glucose
  • Lipids

Grants and funding

This study was partly supported by the National Health Research Institutes of Taiwan (98EOPP01, 99EOPP01, and 00EOPP01) and the Institute of Occupational Safety and Health (IOSH96M102 and IOSH97M102), Taiwan. The funder had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.