Table 3 Primary and secondary outcomes

primary outcomes

The total number of vasopressor boluses(time)

1.0

[0.0, 2.5]

3.0

[1.5, 5.5]

2.0

[0.5, 3.5]

0.009

The total dose of phenylephrine(mg)

0.10

[0.00, 0.20]

0.30

[0.10, 0.55]

0.10

[0.05, 0.30]

0.017

The total dose of ephedrine(mg)

0.0

[0.0, 0.0]

0.0

[0.0, 0.0]

0.0

[0.0, 2.5]

0.637

secondary

outcomes

Antral CSA(cm²)

2.9

[1.6, 5.0]

3.0

[1.0, 6.1]

2.8

[1.7, 4.8]

0.978

Maternal venous

Glucose(mg/dL)

73.0

[68.5, 76.5]

74.0

[69.5, 80.5]

73.0

[66.5, 77.0]

0.531

Sodium(mEq/L)

134.0

[134.0, 135.5]

135.0

[133.5, 136.0]

134.0

[133.0, 135.0]

0.245

Total intravenous fluid(mL)

1300.0

[1150.0, 1425.0]

1200.0

[1100.0, 1425.0]

1250.0

[1125.0, 1600.0]

0.594

Amount of bleeding(mL)

1020.0

[696.0, 1371.0]

823.0

[592.0, 1023.0]

923.0

[768.0, 1193.0]

0.327

Urine Volume(mL)

200.0

[95.0, 350.0]

190.0

[100.0, 275.0]

160.0

[100.0, 325.0]

0.914

Operative time(min)

58.0

[53.5, 70.5]

57.0

[51.5, 58.5]

56.0

[49.0, 66.0]

0.668

Umbilical arterial

pH

7.3

[7.2, 7.3]

7.3

[7.2, 7.3]

7.3

[7.3, 7.3]

0.718

PCO₂(mmHg)

55.0

[46.0, 65.0]

57.0

[51.0, 63.5]

53.3

[50.6, 58.0]

0.659

PO₂(mmHg)

20.0

[14.0, 23.5]

17.2

[16.6, 21.2]

20.0

[15.9, 24.0]

0.801

BE(mmol/L)

-2.0

[-2.0, 0.0]

-1.0

[-3.7, 1.0]

-1.9

[-3.7, 0.9]

0.923