Table 5.

ANCOVA analyses of associations between erupted permanent tooth number and obesity (general, central, and peripheral) at 12 years old.

Variable	Unadjusteda			Adjustedb
	Estimate Coefficient	95% CI	P	Estimate Coefficient	95% CI	P
Erupted permanent tooth number
W/H z-score	0.11	0.01, 0.14	<0.001***	0.11	0.08, 0.14	<0.001***
BMI z-score	0.16	0.12, 0.21	<0.001***	0.17	0.12, 0.22	<0.001***
WC z-score	0.07	0.05, 0.08	<0.001***	0.07	0.05, 0.09	<0.001***
WHR z-score	3.05	−0.23, 6.32	0.068	4.80	1.37, 8.22	0.006**
TRSKF z-score	0.04	−0.01, 0.08	0.058	0.04	−0.06, 0.08	0.096

**P < 0.01.

***P < 0.001.

ANCOVA = analysis of covariance; BMI = body mass index; CI = conference interval; TRSKF = triceps skinfold thickness; W/H = weight-height ratio; WC = waist circumference; WHR = waist-hip ratio.

^aUnadjusted: separate ANCOVA.

^bAdjusted: adjusted for parents’ highest education attainment (primary school graduate or below, secondary school, post-secondary or above), household monthly income (< HK$10,000, HK$10,000– HK$40,000, > HK$40,000; USD1 = HK$7.8), and gender.