Table 3.

Urinary concentrations of log-transformed creatinine-adjusted GST-π by age and treatment group or gender.

Age (yrs)	GST-π						GST-π
	Amalgam Group			Composite Group			Males			Females
	N	Mean	SD	N	Mean	SD	N	Mean	SD	N	Mean	SD
9	55	0.68	1.12	51	0.86	1.06	58	0.73	1.07	48	0.81	1.12
10	104	0.59	1.16	117	0.62	1.01	104	0.32	1.00	117	0.86	1.09
11	171	0.61	1.05	167	0.71	1.11	186	0.40	1.04	152	0.97	1.05
12	165	0.87	1.19	164	0.91	1.14	176	0.60	1.06	153	1.22	1.19
13	152	1.25	1.04	139	1.10	1.22	156	0.88	1.12	135	1.52	1.04
14	89	1.38	1.03	90	1.24	1.11	100	0.97	0.99	79	1.74	1.01
15	73	1.73	1.03	92	1.77	1.10	87	1.42	0.98	78	2.12	1.05
16	65	2.25	0.91	69	2.15	0.97	66	1.76	0.87	68	2.62	0.80
17	99	2.25	0.93	80	2.02	0.91	100	1.81	0.80	79	2.57	0.91
18	61	2.33	0.99	60	2.21	0.90	70	1.91	0.83	51	2.75	0.87

Urinary GST-π concentrations were calculated as μg/g creatinine.