Journal of Environmental and Public Health / 2010 / Article / Tab 3

Research Article

Serum Persistent Organic Pollutants and Duration of Lactation among Mexican-American Women

Table 3

Median duration of lactation from Kaplan-Meier plots by quartiles of persistent organic pollutant concentrations for all participants and stratified by breastfeeding history, Salinas, California, 1999-2000.

Median duration of lactation (months)
NQuartilenExposure R a n g e a (ng  g βˆ’ 1 lipid)Exposure Median (ng  g βˆ’ 1 lipid)All ParticipantsDid not Breastfeed Previously Breastfed Previously

Overall6.04.07.0
𝑝 , 𝑝 ξ…ž - D D E b , e 366
19248.8–568.9406.85.02.07.0
291572.2–1059.9808.86.03.07.5
3921067.6–2697.91531.56.06.05.0
4912801.6–159303.37022.28.05.010.0
𝑝 , 𝑝 ξ…ž - D D T b , e 366
1921.6–7.04.75.03.05.5
2917.1–12.79.67.05.010.0
39212.8–35.519.06.03.06.5
49139.3–33174.0201.87.05.08.0
π‘œ , 𝑝 ξ…ž - D D T b , e 364
1910.1–0.70.55.02.07.0
2910.7–1.30.96.57.05.5
3911.3–3.11.87.04.59.0
4913.1–1878.18.16.04.07.0
𝛽 - H C C H b 364
1910.1–19.27.96.53.59.5
29119.2–38.928.87.02.79.0
39139.6–77.150.45.03.07.0
49177.2–2491.6119.56.06.06.0
H C B b , c , d , e 366
1927.5–38.826.76.03.08.0
29139.7–63.750.87.02.311.0
39263.7–107.681.06.05.58.0
491109.5–710.1161.14.53.55.0
P C B 4 4 b 301
1820.2–1.40.85.03.07.0
2811.4–2.82.07.05.012.0
3822.8–4.43.46.03.57.0
4814.4–11.45.76.04.08.0
P C B 4 9 b 317
1860.1–0.90.53.02.76.0
2860.9–1.91.47.54.011.0
3861.9–2.82.36.05.06.5
4852.9–7.93.87.04.09.0
P C B 5 2 b 334
1910.02–2.01.25.03.07.0
2902.0–3.72.85.55.06.0
3913.7–5.34.46.03.56.5
4905.4–12.47.27.05.57.0
P C B 1 1 8 c , d , e 342
1860.1–2.51.95.03.010.5
2852.5–3.53.07.03.57.5
3863.5–4.84.16.06.09.0
4854.8–25.16.55.03.06.0
P C B 1 3 8 c , e 334
1840.2–1.61.37.03.012.0
2831.6–2.41.95.03.08.0
3842.4–3.62.87.04.09.0
4833.6–30.95.25.05.54.5
P C B 1 5 3 b , c 348
1870.3–3.62.97.03.511.0
2873.6–5.24.36.05.08.0
3875.2–8.06.25.04.06.0
4878.0–95.711.66.05.56.0
P C B 1 8 0 c 284
1710.3–0.90.76.05.08.5
2710.9–1.41.17.03.09.0
3711.4–2.31.65.85.06.0
4712.3–30.03.34.54.54.5

a M a t e r n a l serum drawn at approximately 26 weeks gestation, values below the limit of detection (LOD) were assigned the value of LOD/2; b E s t r o g e n i c category; c A n t i estrogenic category; d A n d r o g e n i c category; e A n t i androgenic category.
Abbreviations: Persistent organic pollutant (POP), sample size (N), sample size of subset (n), dichlorodiphenyldichloroethylene (DDE), dichlorodiphenyltrichloroethane (DDT), hexachlorocyclohexane (HCCH), hexachlorobenzene (HCB), polychlorinated biphenyl (PCB).

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