Table 4.

Independent associations, using general estimating equations from univariable associations in Tables 1–3.

A. Practice, patient, and tooth characteristics at baseline (Y0), by whether any restorative treatments were performed among 899 teeth that were recommended for treatment at Y0
	Adjusted only for clustering		Full model			Final, reduced model
Characteristic	Odds Ratio	P1	Odds Ratio	P1	Odds Ratio	95% Confidence Interval	P1
Practice type	categorical	0.03	categorical	0.002	categorical		0.002
Region	categorical	0.03	categorical	0.01	categorical		0.01
Education BS or greater	1.4	0.04	1.5	0.03	1.5	1.1 - 2.0	0.03
At Y0
Biting pain	1.7	0.008	1.6	0.04	1.7	1.1 - 2.6	0.03
Spontaneous pain	1.7	0.02	1.7	0.046	1.7	1.0 - 2.9	0.047
Wear facet thru enamel	0.65	0.03	0.48	0.002	0.47	0.31 - 0.71	0.002
Caries present	2.4	<0.001	2.0	0.007	2.0	1.3 - 3.3	0.005
Noncarious lesion present	0.58	0.07	0.65	0.15	-	not retained	-
Has crack that connects w/ restoration	0.62	0.03	0.73	0.3	-	not retained	-
Has crack that that extends to root	0.45	0.02	0.35	0.01	0.35	0.17 - 0.72	0.01
Intracoronal restoration	2.0	<0.001	3.4	<0.001	3.6	2.1 - 5.9	<0.001
Recommend multiple treatments at Y0	27.4	<0.001	41.7	<0.001	41.2	14.2 - 119.6	<0.001
B. Among the teeth for which the dentist recommended restorative treatment as the definitive treatment at baseline (Y0), comparison of the characteristics of the teeth that nonetheless never received treatment during follow-up (N=181) to the teeth that did receive restorative treatment at some point during follow-up (N=478)
Region	categorical	0.04	categorical	0.02	categorical		0.02
Associate of private practice	3.0	0.03	2.7	0.037	2.9	1.4 - 6.1	0.03
No biting pain at Y0	1.4	0.08	1.5	0.16	--	not retained	--
No spontaneous pain at Y0	1.5	0.06	1.6	0.06	1.9	1.2 - 3.1	0.007
Wear facet thru enamel	1.6	0.02	2.0	0.004	1.9	1.3 - 2.9	0.006
No caries present at Y0	2.2	<0.001	2.6	<0.001	2.5	1.6 - 4.0	<0.001
Noncarious cervical lesion present at Y0	1.8	0.065	1.8	0.052	1.9	1.1 - 3.2	0.037
Has crack that connects w/ restoration	1.7	0.03	1.5	0.14		not retained
Has crack that blocks trans light	1.5	0.07	1.3	0.25		not retained
Has crack that that extends to root	2.2	0.01	2.4	0.01	2.5	1.4 - 4.7	0.01
C. Among the teeth for which the dentist recommended monitoring at baseline (Y0; N=1,688), comparison of the characteristics of the teeth whose dentist’s recommendation changed to treat during follow-up (restore; N=232 [14%]) to the characteristics of the teeth whose recommendation remained to monitor (109 teeth treated during follow-up that had no stated recommendation for treatment were excluded)
	Adjusted only for clustering		Full model			Final, reduced model
Characteristic	Odds Ratio	P1	Odds Ratio	P1	Odds Ratio	95% Confidence Interval	P1
Patient male	1.6	0.001	1.4	0.04	1.4	1.1 - 1.8	0.03
Biting pain Y0-Y3	4.5	<0.001	3.8	<0.001	4.5	2.8 - 7.2	<0.001
Spontaneous pain Y0-Y3	2.6	<0.001	1.6	0.08		not retained
Any fracture Y1-Y3	29.3	<0.001	25.5	<0.001	25.3	10.7 - 59.7	<0.001
Caries present on tooth at Y1 or Y2	27.6	<0.001	21.8	<0.001	23.5	7.6 - 72.1	<0.001
Has crack that wear facet on tooth	1.7	<0.001	1.4	0.08		not retained
Has crack that roots exposed on tooth	1.4	0.047	1.2	0.3		not retained

¹Significance of differences in proportions of column heading adjusted only for clustering of patients within practitioner.