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Table 1 Demographics and baseline hemodynamic data after propensity matcha

From: Closed-loop assisted versus manual goal-directed fluid therapy during high-risk abdominal surgery: a case–control study with propensity matching

Parameter

Manual

Closed-loop assisted

Absolute standardized difference (%)*

Age (yr)

61.5 ± 11.4

61.6 ± 12.8

1.3

Height (cm)

166 ± 10

166 ± 12

3.5

Weight (kg)

73.9 ± 17.5

73.9 ± 23.7

0.2

Sex

   

 Male

11

11

0.0

 Female

14

14

 

Specific surgical procedure

   

 Whipple

6

6

0.0

 Whipple + additional

6

6

 

 Distal pancreatectomy

3

3

 

 Liver resection

8

8

 

 Complex cholecystectomy

2

2

 

ASA Physical Status patient classification

   

  2

1

1

0.0

  3

21

21

 

  4

3

3

 

Baseline hemodynamic data

   

 Heart rate (bpm)

72 ± 12

73 ± 10

7.0

 Mean arterial pressure (mmHg)

88 ± 11

88 ± 10

5.5

 Stroke Volume Index

44 ± 12

44 ± 10

1.2

 Cardiac Index

3.1 ± 0.9

3.1 ± 0.8

4.8

  1. abpm, Beats per minute. Data are expressed as mean ± standard deviation for scalar data or as counts for categorical data. * Absolute standardized difference >10% is considered a significant imbalance in matching.
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