Basic information      
Age 43 yrs.  (33-55)    
Gender Height 105♀/30♂
1.67m  (1.6-1.73)
   
BMI 27.5 (23.4-31.0)    
  Caucasian 107 (79%)    
  Polynesian 18 (13%)  
  Asian 10 (8%)
Surgery type n   Duration (min) VRS awake median (IQR) VRSd1A median (IQR) PCAmg.h-1 median (IQR)
All     86 (67-117) 4 (0-8) 3 (1-5) 0.49 (0-1.49)
General 54   86.5 (72-127) 0 (0-5) 2 (0-5) 0.39 (0-1.2)
Gynaecological 65   83 (54-113) 6 (3-5) 3 (2-4) 0.98 (0.12-1.9)
Orthopaedic 16   99.5 (73-152) 0 (0-8) 4 (1-6) 0.03 (0-0.6)
VRSawake pain upon awakening; VRSd1A. VRS 20-24h postsurgery with light activity (e.g. coughing or movement); PCAmg.h-1 patient-controlled analgesia usage rate in mg.h-1; BMI – body mass index. Where appropriate values are expressed as median (interquartile range).
Table 2: Demographic, surgery and pain data (n=135).