Table 2.

Prevalence of cases with various numbers of adverse signs as sorted in terms of areas and PCB level quintiles

		Numbers of subjects from polluted and background area with increasing number of multiple adverse signs in quintiles of PCB level
Area	Quintile of PCB level	Numbers of multiple adverse signs						Range of serum PCB level (ng/g lipid)
		0–1	2–3	4–5	6–7	8–9	10–11
POLLUTED	1	32	69	62	29	8	1	337 – 1136
	2	26	66	61	32	13	3	1136 – 1619
	3	25	57	61	45	12	2	1670 – 2279
	4	19	74	60	38	19	1	2290 – 3395
	5	23	62	55	51	11	----	3616 – 101,413
	TOT = 1008	125	328	299	195	54	7
BACKGROUND	1	68	76	50	10	3	----	149 – 521
	2	55	70	60	19	3	----	523 – 661
	3	57	77	47	19	8	----	661 – 825
	4	42	79	61	20	6	----	826 – 1072
	5	50	85	55	16	2	----	1075 – 16,391
	TOT = 1038	272	387	273	84	22	----