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Table 1 Demographics and clinical aspects of the patients in the two groups.

From: Effects of preoperative feeding with a whey protein plus carbohydrate drink on the acute phase response and insulin resistance. A randomized trial

Variable

Group CO

N (%)

Group CHO-P

N (%)

p

Sex

   

   Male

3 (33.3)

3 (37.5)

1.00

   Female

6 (66.7)

5 (62.5)

 

Age (years) (mean ± SEM)

41.0 ± 4.0

35.0 ± 6.0

0.41

Type of operation

   

   Open cholecystectomy

6 (66.7)

4(50)

0.71

   Video-cholecystectomy

2 (22.2%)

2 (25,0%)

 

   Inguinal hérnia repair

1 (11,1%)

2 (25,0%)

 

Duration of the operation (min) (mean ± SEM)

99.0 ± 11.0

94.0 ± 8.0

0.52

Type of anaesthesia

   

   General

4 (44.4)

3 (37.5)

0.78

   Epidural blockage

2 (22.2)

3 (37.5)

 

General+ epidural blockage

3 (33.3)

2 (25)

 

Duration of fasting (min) (mean ± SEM)

1014 ± 38

264 ± 9

0.001

Nutritional status

   

   Eutrophic

9 (100)

8 (100)

1.00

BMI* (kg/m2) (mean ± SEM)

30.7 ± 2.1

26.9 ± 1.5

0.19

ASA score

   

I

3 (33.3)

7 (87.5)

0.05

II

6 (66.7)

1(12.5)

 

Length of hospital stay (median and range)

1 (1-2)

1(1-2)

0.40

  1. * Body mass index, American Society of Aneshesiologists.