Table 3.

Odds ratio for the proportion of children with 16 primary teeth or more by independent valuables (logistic regression analysis).

Boys	B	SE	Wald	Odds ratio	95% CI	P value
Examination year (y) Birth order (No.)	−0.009 0.063	0.003 0.029	11.184 4.751	0.991 1.065	0.986–0.996 1.006–1.126	.001 .029
Birth weight (kg)	0.282	0.054	27.444	1.325	1.193–1.473	.000
Body weight at 18 mo (kg)	0.086	0.030	8.376	1.090	1.028–1.155	.004
Body height at 18 mo (cm)	0.062	0.010	35.372	1.064	1.043–1.086	.000
Chest girth at 18 mo (cm)	0.011	0.015	0.532	1.011	0.981–1.042	.466
Fused teeth (No.)	−3.817	0.241	249.965	0.022	0.014–0.035	.000
Mothers’ age (y)	−0.005	0.005	0.983	0.995	0.985–1.005	.321
Girls	B	SE	Wald	Odds ratio	95% CI	P value
Examination year (y) Birth order (No.)	0.001 −0.001	0.002 0.027	0.446 0.002	1.001 0.999	0.998–1.004 0.947–1.053	.504 .964
Birth weight (kg)	0.325	0.054	35.752	1.383	1.244–1.539	.000
Body weight at 18 mo (kg)	0.160	0.031	27.160	1.173	1.105–1.246	.000
Body height at 18 mo (cm)	0.079	0.010	58.065	1.082	1.060–1.104	.000
Chest girth at 18 mo (cm)	−0.018	0.015	1.357	0.982	0.953–1.012	.244
Fusion teeth (No.)	−3.518	0.256	189.256	0.030	0.018–0.049	.000
Mothers’ age (y)	0.004	0.005	0.764	1.004	0.995–1.014	.382