Table 7.

The association of quartiles polychlorinated dibenzo-p-dioxins (PCDDs) concentration with cancer mortality in NHANES 1999–2004.

PCDDs	Q1	Q2	Q3	Q4
1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin	Ref	0.81 (0.47, 1.40)	0.76 (0.43, 1.34)	0.81 (0.43, 1.52)
1,2,3,4,6,7,8-Heptachlororodibenzo-p-dioxin	Ref	0.90 (0.50, 1.60)	0.83 (0.43, 1.62)	0.70 (0.33, 1.52)
1,2,3,4,6,7,8,9-Octachlorodibenzo-p-dioxin	Ref	1.11 (0.62, 2.00)	1.01 (0.53, 1.94)	1.39 (0.68, 2.84)
1,2,3,4,6,7,8-Heptachlorodibenzofuran	Ref	1.66 (0.92, 2.99)	1.88 (1.00, 3.55)	2.03 (1.03, 4.01)
3,3′,4,4′,5-Pentachlorobiphenyl	Ref	0.98 (0.57, 1.68)	1.02 (0.59, 1.78)	0.93 (0.51, 1.70)

Adjusted as age, gender, education levels, PIR category, serum cotinine category, alcohol drink status, physical activity status, NHANES cycles, and all polychlorinated dibenzo-p-dioxins.