Table 1.

Summary statistics of DDT and its metabolite concentration (µg/g milk fat) in breast milk by sampling time points, location, and a lifetime of DDT application(DDT/DDE).

	p,p-DDE	p,p-DDD	o,p-DDT	p,p-DDT	∑DDT	DDT/DDE
Timepoints
Baseline (n = 166)
Mean	0.94	0.09	0.49	0.72	2.25	0.77
Median	0.67	0.02	0.20	0.45	1.62
StDv	1.11	0.17	0.74	1.07	2.61
Min	0.03	ND	ND	0.01	0.05
Max	10.8	1.17	6.02	10.5	20.0
Midline (n = 144)
Mean	0.74	0.08	0.36	0.49	1.68	0.66
Median	0.51	0.01	0.00	0.35	1.31
StDv	0.71	0.16	0.48	0.49	1.44
Min	0.03	ND	ND	0.04	0.14
Max	3.99	1.05	2.54	3.04	7.53
End line (n = 137)
Mean	0.61	0.08	0.27	0.36	1.32	0.59
Median	0.43	0.00	0.00	0.28	0.90
StDv	0.62	0.17	0.44	0.40	1.26
Min	0.04	ND	ND	0.01	0.06
Max	4.90	0.97	2.21	3.37	7.02
Breast milk sampling locations
Asendabo(n = 256)
Mean	0.77	0.08	0.33	0.51	1.68	0.66
Median	0.51	0.02	0.00	0.33	1.19
StDv	0.99	0.17	0.46	0.62	1.88
min	0.03	ND	ND	0.01	0.05
max	10.8	1.17	2.88	5.03	16.9
Deneba (n = 85)
Mean	0.83	0.13	0.52	0.67	2.14	0.81
Median	0.69	0.03	0.46	0.38	1.53
StDv	0.61	0.21	0.80	1.21	2.44
min	0.09	ND	ND	0.03	0.14
max	3.21	1.05	6.02	10.5	20.0
Serbo (n = 106)
Mean	0.75	0.05	0.42	0.51	1.73	0.68
Median	0.51	0.00	0.00	0.33	1.26
StDv	0.72	0.10	0.64	0.54	1.65
min	0.03	ND	ND	0.01	0.06
max	3.99	0.51	3.55	3.04	8.90
MRL					0.02

ND = Not Detected, MRL = Maximum Residue Limit.