Table 2. The means and standard errors of the Framingham estimate of 10-year CHD risk by age and heavy metal quartile.

Cadmium levels		Men				Women
		n	Mean	SE	p for linear trend	n	Mean	SE	p for linear trend
20≤Age<35
	1Q	148	1.09	0.04	<0.001	153	0.01	0.01	0.033
	2Q	148	1.26	0.07		153	0.02	0.01
	3Q	150	1.66	0.13		154	0.04	0.02
	4Q	149	1.43	0.07		155	0.08	0.03
35≤Age<40
	1Q	85	2.79	0.40	<0.001	82	0.20	0.10	0.458
	2Q	90	2.63	0.35		82	0.05	0.03
	3Q	87	4.56	0.43		82	0.10	0.03
	4Q	88	5.54	0.63		82	0.32	0.09
40 ≤ Age<45
	1Q	79	2.41	0.25	<0.001	71	0.29	0.14	0.929
	2Q	79	4.02	0.40		72	0.11	0.05
	3Q	79	5.39	0.51		71	0.20	0.06
	4Q	79	6.42	0.35		72	0.25	0.06
45≤Age<50
	1Q	70	4.82	0.58	<0.001	78	0.28	0.09	0.010
	2Q	70	4.71	0.45		78	0.42	0.08
	3Q	71	6.51	0.76		78	0.67	0.14
	4Q	71	10.02	1.13		78	1.16	0.36
50≤Age<55
	1Q	76	6.97	0.51	<0.001	78	1.07	0.11	0.456
	2Q	76	7.66	0.48		79	0.96	0.11
	3Q	77	8.50	0.57		79	1.25	0.11
	4Q	77	9.46	0.47		79	1.09	0.11
55≤Age<60
	1Q	70	8.08	0.64	0.002	71	1.84	0.23	0.293
	2Q	72	9.60	0.78		71	1.78	0.28
	3Q	71	11.81	1.20		71	1.68	0.21
	4Q	72	12.93	1.54		72	2.36	0.38
60≤Age<65
	1Q	54	11.38	0.57	<0.001	49	2.61	0.23	0.033
	2Q	54	11.18	0.51		49	2.24	0.20
	3Q	54	12.99	0.57		49	3.21	0.24
	4Q	55	14.52	0.70		49	3.74	0.54

All values were accounted for in study weights.