Coexistence of obesity and sleep-disordered breathing in patients with suspected sleep apnea syndrome polysomnography referred by physicians of different specialties
Journal Title: Postępy Nauk Medycznych - Year 2013, Vol 26, Issue 4
Abstract
Sleep-disordered breathing (SBD), particularly in the form of obstructive sleep apnea (OSAS), is highly prevalent in the general population. Obesity is a major risk factor for OSAS. BMI is the most frequently used obesity indicator. The aim of this study was to describe correlation between BMI and AHI in patients referred to sleep laboratory by physicians of different specialties because of suspicion of OSAS. 960 patients were included, all of them underwent polysomnographic evaluation. Polysomnographic parameters were judged in accordance with the recommendations. Mean BMI for the group with AHI < 5: 29.96 kg/m<sup>2</sup> – men; 33.63 kg/m<sup>2</sup> – women; for the group with AHI ≥ 5: 32.05 kg/m<sup>2</sup> – men; 36.38 kg/m<sup>2</sup> – women. The differences in BMI between healthy and patients groups were statistically significant for both sexes (women p = 0.03, men p = 0.00036). A significant positive correlation between AHI and BMI was found in women’s groups of patients (r = 0.168, p = 0.029) and men’s groups of patients (r = 0.2571, p < 0.001). No statistically significant correlations between AHI and BMI in healthy women and men were shown. We used also a division into three age ranges of patients: 35 y ≤ age ≤ 45 y; 45 y < age ≤ 55 y; age > 55 years. In both sex groups statistically significant positive correlation between BMI and AHI women (r = 0.375, p = 0.007) and (r = 0.17; p = 0.041) men (r = 0.296, p = 0.0008) and respectively for men patients in all age groups (35 y ≤ age ≤ 45 y: r=0.27, p = 0.02; 45 y < age ≤ 55 y: r = 0.28, p = 0.004; age > 55 y: r = 0.166; p=0.015). No statistically significant correlation between BMI and AHI for women in groups 45 y < age ≤ 55 y and above 55 y. We conclude that in the general patients population with suspected SBD higher AHI is correlated with also higher BMI which is obesity indicator.
Authors and Affiliations
Monika Kuźmińska, Ewa Marcinowska-Suchowierska
Keywords
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