sentence: We found a statistically significant association between the proportion of induced abortions and the concentrations of PeCDF ( OR adjusted for age at delivery ( OR ) = 1.82 ( 95 % CI , 1.21 – 2.74 ; p < 0.01 ) , PCB-126 ( OR = 4.14 , 95 % CI , 1.30 – 13.19 ; p = 0.02 ) , and PCB-169 ( OR = 3.47 , 95 % CI , 1.587 – 7.61 ; p < 0.01 ) .