Table 1.

A highlights on the worldwide studies concerning OSA, obesity, and related comorbidities.

Study Title	Study Design	Total Number (N)	Major Associated Comorbidities	Obesity	Sleep Disturbances (OSA)	P-Values	Reference
Quality of sleep and risk for obstructive sleep apnea in ambulant individuals with T2DM at a tertiary referral hospital in Kenya: A cross-sectional, comparative study.	Cross-sectional, comparative study	223 males + females	T2 dm, hypertension, depression, COPDS	Positive	Positive	0.001	[5]
Sleep apnea in Australian men: Disease burden, co-morbidities, and correlates from the Australian longitudinal study on male health.	Longitudinal study	13,423 adult males	T2 dm, hypertension, depression	Positive	Positive	<0.001	[4]
OSA and multiple anthropometric indices of general obesity and abdominal obesity among young adults	Cross-sectional study	2911 males + females	Anxiety/depression	Positive	Positive	<0.001	[2]
Longitudinal study of moderate weight change and SDB.	Prospective cohort study	690 males + females	Anxiety/depression	Positive	Positive	0.01	[3]
Short sleep duration combined with OSA is associated with visceral obesity in Korean adults	Cross-sectional study.	838 males + females	Anxiety/depression	Positive	Positive	<0.001	[42]
Association of short sleep duration with weight gain and obesity at 1-year follow-up: A large-scale prospective study. (Japan)	Prospective	35,247 males + females	Anxiety/depression	Positive	Positive	<0.01	[1]