Table 2.

Blood levels (wet weight picogram/microliter) of polychlorinated biphenyls (PCBs), hexachlorocyclohexane (HCH) and organochlorine pesticides (OCPs) in the study population (n = 194).

Contaminants	GM *	95% Confidence interval *	Median	Minimum	Maximum
PCB 52	0.010	0.010–0.010	0.010	0.010	0.010
PCB 99	0.008	0.008–0.008	0.008	0.008	0.055
PCB 101	0.016	0.016–0.016	0.016	0.016	0.020
PCB 118	0.018	0.017–0.019	0.015	0.015	0.112
PCB 138	0.015	0.014–0.017	0.012	0.012	0.601
PCB 153	0.021	0.019–0.023	0.014	0.014	1.173
PCB 180	0.029	0.028–0.030	0.028	0.028	0.423
α-HCH	0.043	0.043–0.043	0.043	0.043	0.043
β-HCH	0.103	0.103–0.103	0.103	0.103	0.103
γ-HCH	0.053	0.053–0.053	0.053	0.053	0.053
δ-HCH	0.034	0.034–0.035	0.034	0.034	0.070
HCB	0.046	0.042–0.049	0.044	0.010	0.196
Heptachlor	0.136	0.135- 0.138	0.135	0.135	0.352
Heptachlor epoxide	0.069	0.069–0.069	0.069	0.069	0.069
o,p-DDE	0.008	0.008–0.008	0.008	0.008	0.010
p,p’-DDE	0.742	0.651– 0.846	0.720	0.020	8.047
o,p-DDD	0.007	0.007–0.008	0.007	0.007	0.018
p,p’–DDD	0.008	0.008–0.008	0.008	0.008	0.010
o,p-DDT	0.020	0.020–0.020	0.020	0.020	0.020
p,p’-DDT	0.038	0.036–0.041	0.033	0.030	0.519
Mirex	0.023	0.022–0.023	0.022	0.020	0.113
Aldrin	0.052	0.052–0.052	0.052	0.050	0.052

* Geometric mean with 95% confidence intervals.