Table 2.

Association Between Social Isolation, Loneliness, and Number of Teeth

Variable	Model 1a		Model 2b
	PRs	95% CI	PRs	95% CI
Not socially isolated	1.0	Reference	1.0	Reference
Socially isolated	0.97	0.93–1.01	0.97	0.93–1.01
Not lonely	1.0	Reference	1.0	Reference
Lonely	1.07	1.02–1.12	1.06	1.01–1.11

Notes: CI = confidence interval; PR = prevalence ratio.

^aModel 1: PRs are estimated via a modified Poisson regression model with adjustment of age, gender, smoking, alcohol consumption, education, and house income.

^bModel 2: Model 1 + history of depression + history of diabetes + history of stroke + cognitive impairment.