Table 4.

Mean Periodontal Pocket Depth, Mean Clinical Attachment Loss, and Mean Alveolar Bone Height Loss (in mm) between 0 and 12 months and 12 and 18 months

	Periodontal Pocket			Attachment Loss			Alveolar bone height
Variable	Est.*	Std. Error	P-Value	Est.	Std. Error	P-Value	Est	Std. Error	P-Value
Intercept	1.9	0.21	<.001	1.4	0.23	<.001	2.42	0.17	<.001
Time
Baseline	Ref			Ref			Ref
6 Months	−0.08	0.03	0.02	−0.03	0.04	0.52	NA	NA	NA
12 Months	0.06	0.03	0.04	0.11	0.04	0.020	0.13	0.04	<0.001
18 Months	0.13	0.04	<0.001	0.17	0.04	<0.001	0.27	0.04	<0.001
AI use
Not on AI	−0.23	0.08	0.008	−0.44	0.20	0.038	0.27	0.20	0.19
On AI	Ref			Ref			Ref
History of periodontal cleanings
No	0.21	0.07	0.05	0.35	0.12	0.04	0.86	0.29	0.052
Yes	Ref			Ref			Ref
Bisphosphonate use at baseline (Y/N)
No Bisphosphonate use	0.06	0.06	0.36	0.23	0.14	0.12	0.04	0.17	0.81
Bisphosphonate use	Ref			Ref			Ref
Dental insurance
No	0.10	0.07	0.15	−0.01	0.16	0.95	0.12	0.05	0.16
Yes	Ref			Ref			Ref
Adjuvant chemotherapy
No	0.11	0.08	0.20	0.29	0.18	0.13	−0.20	0.21	0.39
Yes	Ref			Ref			Ref
Vitamin D supplement use at baseline
No Vitamin D	−0.03	0.06	0.69	0.07	0.15	0.65	−0.15	0.17	0.37
Vitamin D	Ref			Ref			Ref
Calcium supplement use at baseline
No Calcium use	0.02	0.07	0.69	−0.05	0.20	0.81	0.81	0.27	0.005
Calcium use	Ref			Ref			Ref
Not on Calcium and Not on AI Baseline Interaction	−0.17	0.12	0.17	−0.17	0.27	0.53	−0.70	0.34	0.04

Est Estimates of Fixed Effects

Ref Reference group