Obstructive sleep apnoea is more prevalent in men with schizophrenia compared to general population controls: results of a matched cohort study.
OBJECTIVES:
Obstructive sleep apnoea (OSA) may be more common in people with schizophrenia compared to the general population, but the relative prevalence is unknown. Here, we determine the relative prevalence of severe OSA in a cohort of men with schizophrenia compared to representative general population controls, and investigate the contribution of age and body mass index (BMI) to differences in prevalence.


METHODS:
Rates of severe OSA (apnoea-hypopnoea index > 30) were compared between male patients with schizophrenia and controls from a representative general population study of OSA.


RESULTS:
The prevalence of severe OSA was 25% in the schizophrenia group and 12.3% in the general population group. In subgroups matched by age, the relative risk of severe OSA was 2.9 ( p = 0.05) in the schizophrenia subjects, but when adjusted for age and BMI, the relative risk dropped to 1.7 and became non-significant ( p = 0.17).


CONCLUSIONS:
OSA is prevalent in men with schizophrenia. Obesity may be an important contributing factor to the increased rate of OSA.
['Myles|Hannah|H|', 'Vincent|Andrew|A|', 'Myles|Nicholas|N|', 'Adams|Robert|R|', 'Chandratilleke|Madhu|M|', 'Liu|Dennis|D|', 'Mercer|Jeremy|J|', 'Vakulin|Andrew|A|', 'Wittert|Gary|G|', 'Galletly|Cherrie|C|']
D000293:Adolescent D000328:Adult D015331:Cohort Studies D015897:Comorbidity D006801:Humans D008297:Male D008875:Middle Aged D009765:Obesity D015995:Prevalence D011618:Psychotic Disorders D012559:Schizophrenia D020181:Sleep Apnea, Obstructive D055815:Young Adult
obstructive sleep apnoea schizophrenia BMI obesity apnoea–hypopnoea index psychosis