General correlation between neonatal factors, primary and permanent tooth eruption and their interrelation in a population in german orthodontic practices

Table 1 Characterisation of the patient collective with regard to physical development at the time of birth and tooth eruption times of the first and second dentitions

Factors		N	Mean	SD	SEM	Min	Max
Week	Female	224	39.54	2.30	0.15	28	50
	Male	172	39.26	2.57	0.20	24	45
	Total	396	39.41	2.42	0.12	24	50
Weight (g)	Female	227	3339.00	633.80	42.07	820	5300
	Male	175	3399.00	598.50	45.25	1250	4680
	Total	402	3365.00	618.60	30.86	820	5300
Height (cm)	Female	224	50.82	3.52	0.24	34	58
	Male	173	51.48	3.77	0.29	36	63
	Total	397	51.11	3.65	0.18	34	63
Age at first deciduous tooth eruption (months)	Female	210	7.55	3.20	0.22	1	24
	Male	164	7.58	2.96	0.23	3	24
	Total	374	7.56	3.09	0.16	1	24
Age at first permanent tooth eruption (years)	Female	186	5.94	0.96	0.07	2	9
	Male	146	6.21	1.14	0.09	2.5	12
	Total	332	6.06	1.05	0.06	2	12

ISSN: 1472-6831