TY - JOUR
T1 - Intermittent hypoxia is an independent marker of poorer glycaemic control in patients with uncontrolled type 2 diabetes
AU - Torrella, M.
AU - Castells, I.
AU - Gimenez-Perez, G.
AU - Recasens, A.
AU - Miquel, M.
AU - Simó, O.
AU - Barbeta, E.
AU - Sampol, G.
PY - 2015/9/1
Y1 - 2015/9/1
N2 - © 2015 Elsevier Masson SAS. Aim: This study investigated the association between intermittent hypoxia and glycaemic control in patients with uncontrolled type 2 diabetes (T2D) not treated for sleep apnoea. Methods: This was a single-centre cross-sectional study of stable patients with T2D and HbA1c≥7% (53mmol/mol). Patients underwent overnight pulse oximetry and, if intermittent hypoxia-defined by a 4% oxyhaemoglobin desaturation index≥15-was observed, respiratory polygraphy was performed. All participants completed the Pittsburgh Sleep Questionnaire and Hospital Anxiety and Depression Scale. The association between intermittent hypoxia and poorer glycaemic control (defined by an HbA1c level above the median of 8.5%) was estimated by multivariate logistic regression analysis. Results: Out of 145 patients studied, 54 (37.2%) had intermittent hypoxia (with sleep apnoea confirmed in 53). Patients with intermittent hypoxia had 0.7% (7.7mmol/mol) higher median HbA1c levels than patients without intermittent hypoxia (P=0.001). Intermittent hypoxia was associated with poorer glycaemic control after adjusting for obesity, age at onset and duration of diabetes, insulin requirement, sleep quality and depressive mood (OR: 2.31, 95% CI: 1.06-5.04, model adjusted for body mass index; OR: 2.46, 95% CI: 1.13-5.34, model adjusted for waist-to-height ratio). Conclusion: Intermittent hypoxia, a consequence of sleep apnoea, is frequent and has a strong independent association with poorer glycaemic control in patients with uncontrolled T2D.
AB - © 2015 Elsevier Masson SAS. Aim: This study investigated the association between intermittent hypoxia and glycaemic control in patients with uncontrolled type 2 diabetes (T2D) not treated for sleep apnoea. Methods: This was a single-centre cross-sectional study of stable patients with T2D and HbA1c≥7% (53mmol/mol). Patients underwent overnight pulse oximetry and, if intermittent hypoxia-defined by a 4% oxyhaemoglobin desaturation index≥15-was observed, respiratory polygraphy was performed. All participants completed the Pittsburgh Sleep Questionnaire and Hospital Anxiety and Depression Scale. The association between intermittent hypoxia and poorer glycaemic control (defined by an HbA1c level above the median of 8.5%) was estimated by multivariate logistic regression analysis. Results: Out of 145 patients studied, 54 (37.2%) had intermittent hypoxia (with sleep apnoea confirmed in 53). Patients with intermittent hypoxia had 0.7% (7.7mmol/mol) higher median HbA1c levels than patients without intermittent hypoxia (P=0.001). Intermittent hypoxia was associated with poorer glycaemic control after adjusting for obesity, age at onset and duration of diabetes, insulin requirement, sleep quality and depressive mood (OR: 2.31, 95% CI: 1.06-5.04, model adjusted for body mass index; OR: 2.46, 95% CI: 1.13-5.34, model adjusted for waist-to-height ratio). Conclusion: Intermittent hypoxia, a consequence of sleep apnoea, is frequent and has a strong independent association with poorer glycaemic control in patients with uncontrolled T2D.
KW - Diabetes mellitus
KW - Glycosylated haemoglobin
KW - Intermittent hypoxia
KW - Sleep apnoea
KW - Type 2
U2 - 10.1016/j.diabet.2015.01.002
DO - 10.1016/j.diabet.2015.01.002
M3 - Article
SN - 1262-3636
VL - 41
SP - 312
EP - 318
JO - Diabetes and Metabolism
JF - Diabetes and Metabolism
IS - 4
ER -
