Table 2 Comparison of UtA parameters between SGA groups and non-SGA groups

The first trimester

 Mean RI

2

3158

0.06 (-0.04, 0.16) ^a

0.233

97.40%

  Sensitivity analysis

0.06 (-0.04, 0.16)

 Mean PI

6

9694

0.31 (0.19, 0.44) ^a

< 0.001

86.50%

  Sensitivity analysis

0.31 (0.19, 0.44)

 PI Z-score

2

3629

0.30 (0.18, 0.42) ^a

< 0.001

0.00%

  Sensitivity analysis

0.30 (0.18, 0.42)

The second trimester

 Notch presence

9

10974

2.54 (2.10, 3.08) ^b

< 0.001

0.00%

  Sensitivity analysis

2.54 (2.10, 3.08)

  Publication bias

Z = 0.36

0.974

 Mean PI

4

3543

0.21 (0.12, 0.30) ^a

< 0.001

54.80%

  Sensitivity analysis

0.21 (0.12, 0.30)

 Mean RI

3

4141

0.05 (0.05, 0.06) ^a

< 0.001

47.10%

  Sensitivity analysis

0.05 (0.05, 0.06)

The third trimester

 PI z-score

5

2918

0.62 (0.33, 0.91) ^a

< 0.001

80.60%

  Sensitivity analysis

0.62 (0.33, 0.91)

 PI MoM

2

13492

0.08 (0.06, 0.09) ^a

< 0.001

2.90%

  Sensitivity analysis

0.08 (0.06, 0.09)