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Table 3 Distribution of follicular fluid:serum ratios with analytes listed in ascending order by molecular weight (N = 62)

From: Serum and follicular fluid organochlorine concentrations among women undergoing assisted reproduction technologies

  Molecular weight Mean Selected Percentiles
    Min. 10th 25th 50th 75th 90th 95th Max.
HCB 285 0.39 0.13 0.22 0.29 0.37 0.49 0.55 0.60 0.69
p,p'-DDE 318 0.32 0.03 0.18 0.24 0.32 0.41 0.46 0.49 0.55
PCB 118 326 0.32 0.06 0.18 0.22 0.30 0.39 0.46 0.48 1.38*
p,p'-DDT 355 0.22 0.02 0.11 0.14 0.22 0.27 0.32 0.36 0.47
PCB 138 361 0.31 0.04 0.17 0.24 0.30 0.37 0.43 0.51 0.99*
PCB 153 361 0.27 0.03 0.14 0.20 0.25 0.34 0.39 0.41 0.79*
PCB 180 395 0.25 0.02 0.12 0.18 0.25 0.31 0.40 0.41 0.94*
Oxychlordane 426 0.24 0.06 0.12 0.17 0.24 0.29 0.35 0.37 0.52
Trans-nonachlor 444 0.21 0.05 0.10 0.16 0.20 0.25 0.29 0.32 0.71*
Mirex 546 0.24 0.06 0.11 0.17 0.22 0.30 0.39 0.42 0.54
ΣPCB   0.27 0.06 0.14 0.19 0.26 0.33 0.38 0.42 0.97*
  1. *One woman was consistently an outlier for high ff:serum ratio for PCBs and trans-nonachlor. This woman also had the highest ratio for oxychlordane.