Heritable patterns of tooth decay in the permanent dentition: principal components and factor analyses

BMC Oral Health

Table 3 Heritability estimates for DMFS index, PCs, and FACs

Phenotype	h²	h² SE	p-value	R²
DMFS	0.418	0.164	0.008	0.054
PCA
PC1	0.404	0.160	0.009	0.095
PC2	0.149	0.171	0.190	0.017
PC3	0.000	-	0.500	0.037
PC4	0.174	0.234	0.231	0.004
PC5	0.373	0.207	0.043	0.021
PC6	0.027	0.236	0.455	0.001
PC7	0.503	0.221	0.020	0.004
PC8	0.000	-	0.500	0.003
PC9	0.000	-	0.500	0.006
PC10	0.000	-	0.500	0.001
FA
FAC1	0.157	0.181	0.194	0.033
FAC2	0.000	-	0.500	0.014
FAC3	0.653	0.198	0.006	0.010
FAC4	0.274	0.239	0.135	0.058
FAC5	0.019	0.161	0.454	0.017
FAC6	0.302	0.153	0.027	0.009
FAC7	0.000	-	0.500	0.015
FAC8	0.000	-	0.500	0.018
FAC9	0.084	0.208	0.343	0.006
FAC10	0.342	0.292	0.136	0.014

h² = heritability estimate (i.e., proportion of phenotype variation attributable to genetics)
h² SE = standard error of the heritability estimate
R² = proportion of phenotype variation attributable to the cumulative effects of age, age², and sex

ISSN: 1472-6831