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Table 2 Serum DDE cases vs controls.

From: Endocrine disruptors and spontaneous premature labor: a case control study

  Cases (n = 26) Controls (n = 52) P value
DDE (median, range) .43 ng/ml (.16, 2.98) .49 ng/ml (.09, 3.34)  
DDE corrected for lipid (median, range) 67.02 ng/g lipid (28.57, 431.88) 69.29 ng/g lipid (15.79, 618.52)  
Log DDE (mean, SD) 4.29 ng/g lipid (.62) 4.33 ng/g lipid (.66) .85