1. Increased Risk of Lost Workdays Prior to the Diagnosis of Sleep Apnea
Noora Sjösten, PhD, Jussi Vahtera, MD, PhD, Paula Salo, PhD, Tuula Oksanen, MD, Tarja Saaresranta, MD, PhD, Marianna Virtanen, PhD, Jaana Pentti, BSci, Mika Kivimäki, PhD 
CHEST 
Volume 136, Issue 1, Pages (July 2009)
DOI: /chest
Copyright © 2009 The American College of Chest Physicians Terms and Conditions

2. Figure 1
Unadjusted numbers of lost workdays during the 5 years before the sleep apnea diagnosis in men (n = 3,354) and women (n = 2,388) by sleep apnea status.
CHEST  , DOI: ( /chest )
Copyright © 2009 The American College of Chest Physicians Terms and Conditions