1) Medicare and private payer sleep apnea claims data, 2009.
2) Valipour, A, et al. Gender-related differences in symptoms of patients with suspected breathing disorders in sleep: a clinical population study using the sleep disorders questionnaire. Sleep, 2007. 30(3):312-9.
3) O’Connor, C, KS Thornlye and P.J. Gender differences in the polysomnographic features of obstructive sleep apnea. Am J Respir Crit Care Med, 2000. 161(5): p.1465-726.