Table 4.

Incidence rates and hazard ratios of non-alcoholic fatty liver disease in different subgroups

Subgroup	N	Event	Person-year	Incidence Rate (/10,000 person-year)	Hazard Ratio (95% Confidence Interval)
					Crude	p-value	Adjusteda	p-value
Comparison Cohort	33,045	206	333,121	6.2	Reference		Reference
Sleep Disorder Cohort
Apnea Group	388	7	3751	18.7	3.01 (1.42–6.39)	0.004	2.24 (1.05–4.77)	0.04
Non-apnea Group	32,657	434	310,877	14.0	2.25 (1.91–2.66)	< 0.001	1.77 (1.46–2.15)	< 0.001

^aModel adjusted for sex, age (categorical), diabetes, dyslipidemia, hypertension, depression, anxiety, and ischemic heart disease