1. Volume 138, Issue 5, Pages 1101-1107 (November 2010)
Prevalence and Recognition of Obstructive Sleep Apnea in Chinese Patients With Type 2 Diabetes Mellitus 
David C.L. Lam, MBBS, PhD, FCCP, Macy M.S. Lui, MBBS, Jamie C.M. Lam, MD, FCCP, Liza H.Y. Ong, MBBS, Karen S.L. Lam, MBBS, MD, Mary S.M. Ip, MBBS, MD, FCCP 
CHEST 
Volume 138, Issue 5, Pages (November 2010)
DOI: /chest
Copyright © 2010 The American College of Chest Physicians Terms and Conditions

2. Figure 1.
A flowchart to show the recruitment and random sampling from the DM clinic. CSA = central sleep apnea; DM = diabetes mellitus; OSA = obstructive sleep apnea; PSG = polysomnography.
CHEST  , DOI: ( /chest )
Copyright © 2010 The American College of Chest Physicians Terms and Conditions

3. Figure 2.
The proportions of subjects by OSA severity on PSG. AHI = apnea-hypopnea index. See Figure 1 legend for expansion of other abbreviations.
CHEST  , DOI: ( /chest )
Copyright © 2010 The American College of Chest Physicians Terms and Conditions