Table 1.

Serum concentration of selected organochlorine insecticide compounds and risk of TGCTs.

	Lipid-adjusted analyte concentration (ng/g lipid)			ORs for concentration tertiles (reference group: tertile 1)
	Cases (n = 49)	Controls (n = 51)		Tertile 1	Tertile 2		Tertile 3
Analyte	Median (range)	Median (range)	pWilcoxona	nCo/nCa	nCo/nCa	OR (95% CI)b	nCo/nCa	OR (95% CI)
DDT metabolite
o,p′-DDT	20.7 (6.0–220.5)	16.6 (0.3–171.9)	0.36	17/16	17/11	0.8 (0.2–2.6)	17/21	1.4 (0.4–4.5)
p,p′-DDT	226.0 (92.2–584.1)	194.6 (29.3–661.0)	0.23	17/11	17/20	2.3 (0.7–7.2)	17/18	2.1 (0.6–7.2)
p,p′-DDE	2098.5 (750.0–9512.2)	1833.2 (224.9–7436.3)	0.07	17/11	17/18	1.8 (0.6–5.5)	17/20	2.2 (0.7–6.5)
Chlordane
Heptachlor epoxide	12.0 (0.1–43.6)	11.9 (0.2–27.4)	0.18	16/12	16/16	1.7 (0.5–5.8)	16/20	2.4 (0.6–9.1)
Oxychlordane	13.4 (0.6–77.4)	11.8 (0.8–79.4)	0.05	16/11	15/20	3.0 (0.8–11.1)	15/18	3.2 (0.6–16.8)
trans-Nonachlor	23.2 (10.7–76.9)	20.5 (8.3–99.2)	0.07	17/10	17/21	3.1 (0.8–11.6)	17/18	2.6 (0.7–8.9)
Total	47.3 (17.9–143.2)	45.2 (19.0–206.0)	0.048	17/13	17/17	1.8 (0.5–6.5)	17/19	2.3 (0.6–7.2)
Other insecticide
β-HCH	143.0 (58.4–414.0)	129.7 (59.7–295.9)	0.20	17/15	17/13	1.0 (0.4–2.7)	17/21	1.8 (0.5–6.1)
Dieldrin	54.2 (0.6–177.9)	54.7 (0.7–251.0)	0.46	17/11	17/22	3.3 (0.8–12.7)	17/15	2.1 (0.5–9.5)
γ-HCH	6.4 (0.1–42.4)	6.8 (0.2–45.1)	0.89	17/17	17/15	1.0 (0.3–3.1)	17/17	1.1 (0.2–5.0)
HCB	713.4 (199.5–2458.2)	568.6 (168.6–3185.9)	0.26	17/15	17/13	1.1 (0.3–3.7)	17/21	2.9 (0.5–15.2)
Mirex	1.7 (0.1–26.0)	1.5 (0.1–14.9)	0.10	17/16	16/13	0.9 (0.3–2.9)	16/17	1.2 (0.4–3.0)

Abbreviations: n_Ca, number of cases; n_Co, number of controls.

^ap-Value from Wilcoxon signed-rank test of matched case–control sets.

^bORs and 95% CIs calculated from conditional logistic regression of matched case–control sets.