Table 2.

Unadjusted and fully adjusted hazard ratios for dental status as a predictor of tooth loss

Exposure	Age group	Reference (for categorical exposures)	Unadjusted hazard ratio (95% CI)	Unadjusted P value	Fully adjusted hazard ratio (95% CI)	Fully adjusted P value
CPI3 or higher	Under 45	CPI <3	1.64 (1.50, 1.79)	<.0001	1.41 (1.28, 1.55)	<.0001
	45‐54.9		1.51 (1.40, 1.69)	<.0001	1.28 (1.18, 1.38)	<.0001
	55 or older		1.38 (1.28, 1.48)	<.0001	1.22 (1.14, 1.32)	<.0001
	Combined		1.48 (1.42, 1.55)	<.0001	1.29 (1.24, 1.36)	<.0001
Baseline DFS	Under 45	‐	1.02 (1.02, 1.03)	<.0001	1.01 (1.01, 1.02)	<.0001
	45‐54.9		1.01 (1.01, 1.01)	<.0001	1.01 (1.00, 1.01)	<.0001
	55 or older		1.00 (1.00, 1.00)	.004	1.00 (1.00, 1.00)	.013
	Combined		1.01 (1.01, 1.01)	<.0001	1.00 (1.00, 1.01)	<.0001
1‐2 missing teeth at baseline	Under 45	No missing teeth at baseline	1.59 (1.43, 1.78)	<.0001	1.38 (1.24, 1.54)	<.0001
	45‐54.9		1.39 (1.28, 1.51)	<.0001	1.18 (1.08, 1.28)	<.0001
	55 or older		1.15 (1.05, 1.26)	<.0001	1.04 (0.95, 1.14)	.411
	Combined		1.34 (1.27, 1.41)	<.0001	1.17 (1.10, 1.23)	<.0001
3‐6 missing teeth at baseline	Under 45		1.25 (1.09, 1.44)	<.0001	1.17 (1.02, 1.35)	.026
	45‐54.9		1.55 (1.41, 1.70)	<.0001	1.21 (1.10, 1.33)	<.0001
	55 or older		1.46 (1.34, 1.60)	<.0001	1.16 (1.06, 1.27)	.001
	Combined		1.52 (1.44, 1.61)	<.0001	1.22 (1.15, 1.29)	<.0001
7 or more missing teeth at baseline	Under 45		5.14 (3.27, 8.09)	<.0001	2.50 (1.57, 3.99)	<.0001
	45‐54.9		3.87 (3.25, 4.62)	<.0001	2.12 (1.75, 2.56)	<.0001
	55 or older		1.85 (1.68, 2.03)	<.0001	1.22 (1.10, 1.36)	<.0001
	Combined		2.18 (2.02, 2.35)	<.0001	1.43 (1.32, 1.56)	<.0001

The multivariable model includes adjustment for age and sociodemographic parameters given in Table 3.

CPI, community periodontal index; DFS, decayed and filled surfaces.