Table 2.

Final Zero-Inflated Negative Binomial (ZINB) Multivariate Model(s) Relating Mean Number of Teeth with Caries by Primary and Permanent Dentition

	Primary Dentitiona		Permanent Dentitionab
Variable	Multiplicative effectc	95% CI	Multiplicative effectc	95% CI
Age	0.77	0.74, 0.82	1.16	1.11, 1.20
School Type
Private	Referent		Referent
Public	1.44	1.20, 1.73	1.84	1.54, 2.20
Ethnicity
Palauan	Referent		Referent
Other	0.78	0.60, 1.01	0.74	0.57, 0.96
BMI (1 kg/m2)	0.96	0.95, 0.98
State			P<.001
1			Referent
2			1.89	1.08, 3.30
3			0.10	0.01, 0.83
4			0.70	0.20, 2.37
5			2.91	1.72, 4.94
6			0.80	0.33, 1.94
7			2.14	1.13, 4.08
8			2.35	1.26, 4.39
9			2.42	1.14, 5.11
10			1.45	0.75, 2.80
11			1.23	0.55, 2.76
12			0.97	0.49, 2.01
13			1.22	0.58, 2.55
14			2.22	1.20, 4.09
Nicotine
No	Referent
Yes	1.65	0.96, 2.83

^aEstimates of Pr(caries=0) inflated by age; Estimated dispersion parameter =0.46 (95%CI:0.33, 0.60).

^bEstimates of Pr(caries=0) inflated by age; Estimated dispersion parameter =0.29 (95%CI:0.21, 0.39).

^cMultiplicative effect for a Poisson-like regression is the ratio of two means.