highly significantp<0.001
The increased occurrence of positive p21 expression in the hypoxic group was highly significant (p<0.001).
The increased occurrence of positive p21 expression in the hypoxic group was highly significant (p<0.001).
A significant model has emerged with a highly significant effect for p21 (p<0.001) and a borderline significant effect for hif1α (p = 0.055), implying that, given the information on p21, there is not much additional information from determining hif1α.
As indicated in Table 5 , although positive p21 expression was much more common in the hypoxic twin pregnancies, nevertheless this difference did not reach statistical significance, most probably due to the small sample size.