Prevalence of Obesity Hypoventilation Syndrome
Prevalence of Obesity Hypoventilation Syndrome
Rationale of the "BIO-OHS" study (Prevalence of Obesity Hypoventilation Syndrome):

 The overall prevalence of Obesity Hypoventilation Syndrome (OHS) has never been directly
 assessed in the general population. Actually, this prevalence has been assessed in patients
 referred to sleep clinics with a potential diagnosis of sleep-disordered breathing or in
 patients already diagnosed with sleep apnea. The purpose of this study is to determine the
 prevalence of Obesity Hypoventilation syndrome in obese patients referred to clinical
 laboratories for regular follow-up medical analysis.
No additional description
Inclusion Criteria:

 -  18 years old ans more

 -  BMI over 30 kg/M2

 -  Stable state (respiratory, metabolic and cardio-vascular) for the last 2 months

 -  Addressed to a clinical labs for a blood check-up whatever the prescription

 Exclusion Criteria:

 -  No social security

 -  Non cooperative patient, as judged by the investigator