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Table 2 Comparison between MPA Doppler indices in foetuses with and without neonatal RDS

From: Validity of foetal Doppler indices in predicting postnatal respiratory distress syndrome: a prospective study

  RDS Mean Std. Deviation Std. Error Mean
A. 34 0/7–36 6/7 weeks of gestation
At/Et Yes 0.2865 0.03978 0.01148
  No 0.3357 0.05849 0.00989
PSV Yes 64.93 1.88540 0.54427
  No 68.19 0.06126 0.51745
PI Yes 2.67 0.14265 0.04118
  No 2.32 0.16640 0.02813
RI Yes 0.92 0.16839 0.04861
  No 0.83 0.08695 0.01470
S/D Yes 6.88 0.41068 0.11855
  No 6.86 0.33922 0.05734
B. 37 0/7–38 6/7 weeks of gestation
At/Et Yes 0.3155 0.04410 0.02205
  No 0.3527 0.05606 0.00801
PSV Yes 73.37 0.56097 0.28049
  No 76.44 0.12432 0.44633
PI Yes 2.55 0.10468 0.05234
  No 2.02 0.19822 0.02832
RI Yes 0.81 0.02630 0.01315
  No 0.75 0.07112 0.01016
S/D Yes 6.92 0.49990 0.24995
  No 6.95 0.31999 0.04571