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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.