Your privacy, your choice

We use essential cookies to make sure the site can function. We also use optional cookies for advertising, personalisation of content, usage analysis, and social media.

By accepting optional cookies, you consent to the processing of your personal data - including transfers to third parties. Some third parties are outside of the European Economic Area, with varying standards of data protection.

See our privacy policy for more information on the use of your personal data.

for further information and to change your choices.

Skip to main content

Table 3 Patient outcomes before and after propensity score matching

From: Synthetic colloids as priming fluids in cardiopulmonary bypass and postoperative acute kidney injury: a propensity score-matched study

Variables

Before PSM

After PSM

The gelatin group (n = 1921)

The HES group (n = 12,522)

P

The gelatin group (n = 1880)

The HES group (n = 1880)

P

Primary outcome

 AKI

57 (3.0)

567 (4.5)

0.002

56 (3.0)

96 (5.1)

0.001

Secondary outcomes

 Perioperative RBCs transfusion, %

927 (48.3)

4964 (39.6)

 < 0.001

904 (48.1)

872 (46.4)

0.296

 Perioperative FFP transfusion, %

246 (12.8)

1411 (11.3)

0.049

243 (12.9)

243 (12.9)

1.000

 Perioperative Platelet transfusion, %

82 (4.3)

509 (4.1)

0.675

81 (4.3)

76 (4.0)

0.684

 Chest drainage volume on the first day after surgery, mL

350 (270, 500)

340 (250, 480)

0.001

360 (270, 500)

350 (250, 480)

0.008

 Total chest drainage volume, mL

740 (540, 1100)

710 (520, 1030)

 < 0.001

745 (540, 1100)

730 (530, 1060)

0.217

 MV time, h

15 (11, 17)

15 (11, 18)

0.139

15 (11, 17)

14 (11, 17)

0.117

 Cerebrovascular event

5 (0.3)

45 (0.4)

0.491

4 (0.2)

5 (0.3)

0.739

 IABP insertion

7 (0.4)

80 (0.6)

0.148

7 (0.4)

10 (0.5)

0.466

 CRRT

4 (0.2)

54 (0.4)

0.150

4 (0.2)

9 (0.5)

0.165

 ECMO insertion

1 (0.1)

10 (0.1)

0.681

1 (0.1)

0 (0)

0.317

 ICU LOS, d

2 (1, 4)

2 (1, 4)

0.821

2 (1, 4)

2 (1, 4)

0.765

 LOS, d

14 (11, 17)

14 (12, 17)

0.001

14 (11, 17)

14 (11, 17)

0.836

 In-hospital death

9 (0.5)

64 (0.5)

0.806

9 (0.5)

15 (0.8)

0.219

 ICU costs, RMB

14,034.89 (9195.39, 21,234.63)

13,743.63 (8645.27, 20,480.52)

0.004

14,059.29 (9185.88, 21,288.03)

14,470.15 (8983.57, 21,772.20)

0.548

 Hospital costs, RMB

116,812.18 (101,644.89, 139,005.49)

114,489.92 (99,029.049, 136,460.98)

 < 0.001

116,803.79 (101,688.57, 139,169.79)

1,186,499.33 (101,333.45, 138,828.94)

0.684

  1. Abbreviations: AKI acute kidney injury, CRRT continuous renal replacement therapy, ECMO extracorporeal membrane oxygenation, FFP fresh frozen plasma, HES hydroxyethyl starch, ICU intensive care unit, IABP intra-aortic balloon pump, LOS length of stay, MV mechanical ventilation, PSM propensity score matching, RBC red blood cell