Table 5.

Negative binomial GLMM regression results^* for assessing the associations between new non-cavitated and cavitated caries and other related variables (156 subjects)

Variable	New Non-cavitated Caries**			New Cavitated Caries***
	Est.§	exp (Est.)£	p-value	Est.§	exp (Est.)£	p-value
Daily Toothbrushing Frequency (Occasions)	−0.40	0.67	0.03	−0.36	0.70	0.08
Composite Water Fluoride (ppm)	−0.28	0.76	0.34	−0.18	0.84	0.57
Proportion of New Non-cavitated Caries Lesions to Surfaces at Risk (10% change)	-	-	-	0.48	1.62	0.0002
Proportion of New Cavitated Caries Lesions to Surfaces at Risk (10% change)	0.23	1.26	0.0004	-	-	-
SES (overall p-value)			(0.02)			(0.48)
• Low	0	1	Ref.	0	1	Ref.
• Middle	0.07	1.07	0.80	0.03	1.03	0.92
• High	−0.61	0.54	0.03	−0.29	0.75	0.35
Gender
• Males	0.11	1.12	0.60	−0.18	0.84	0.49
Dentition (overall p-value)			(0.19)			(<0.0001)
• Primary (Exam 1)	0	1	Ref.	0	1	Ref.
• Mixed (Exam 2)	0.37	1.45	0.08	0.83	2.29	<0.0001
• Permanent (Exam 3)	0.16	1.17	0.43	−0.69	0.50	0.002

^*Each row for non-cavitated caries (columns 2–4) and for cavitated caries (columns 5–7) features results from a separate regression model.

^**Transitions are from sound to non-cavitated lesions.

^***Transitions are from sound/non-cavitated caries lesions to cavitated caries or filled lesions.

^§β estimates

^£Exponentiation of the estimates