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Table 3 Effects of Mmp9 and Pappa2 deletion on average fetal mass and average placental mass

From: PAPP-A2 deficiency does not exacerbate the phenotype of a mouse model of intrauterine growth restriction

  Term in model
  Mmp9 Pappa2 Mmp9*Pappa2 interaction Number of fetuses
G16
  F1,36 P F1,36 P F1,36 P F1,36 P
Average fetal mass 0.89 0.35 0.44 0.51 0.04 0.84 6.51 0.02
Average placental mass 3.50 0.07 0.82 0.37 0.01 0.94 10.76 0.002
G18
  F1,15 P F1,15 P F1,15 P F1,15 P
Average fetal mass 3.41 0.08 1.13 0.31 0.03 0.86 2.08 0.17
Average placental mass 0.61 0.45 1.00 0.33 0.00 0.98 1.11 0.31
  1. Statistics are from general linear models including effects of Mmp9 deletion (mating types 0 and 1 compared with others), Pappa2 deletion (whether the cross included at least one functional Pappa2 allele or not), the interaction between these two factors, and the number of fetuses as a covariate