Table 2.

Crude and adjusted hazard ratios (95% confidence interval) of hearing impairment for dementia.

Hazard ratios	Severe hearing impairment (n = 22,160)				Profound hearing impairment (n = 4,790)
	Crude	P-value	Adjusted†	P-value	Crude	P-value	Adjusted†	P-value
Dementia	1.27 (1.13–1.43)	<0.001*	1.17 (1.04–1.31)	0.010*	1.47 (1.11–1.94)	0.007*	1.51 (1.14–2.00)	0.004*

*Cox-proportional hazard regression model in hearing impairment group compared to control, Significance at P < 0.05.

^†Adjusted model for age, sex, income, region of residence, hypertension, diabetes mellitus, dyslipidemia, ischemic heart disease, cerebral stroke, and depression histories.