At cut-off AHI ≥ 5/h. (3 subjects with central sleep apnoea were excluded). #Prevalence of obstructive sleep apnoea. xIt is not apparent which kind of diabetes sample was used. In other publications, it is interpreted as a sample of patients with type 2 diabetes [37]. Modulators of SDB/higher AHI were assessed in multivariable regression analysis. SDB = sleep-disordered breathing; BMI = body mass index; T2D = type 2 diabetes; AHI = apnoea-hypopnoea index; BP = blood pressure; RDI = respiratory disturbance index.