Table 2

Metabolite ratios in the patient and reference populations

Study group (n)	PME:NTP	Pi:NTP	PDE:NTP
Healthy volunteers (n=23)	0.77 (0.20)	0.85 (0.26)	3.30 (0.55)
Biliary duct strictures (n=6)	0.72 (0.15)	0.92 (0.46)	4.00 (1.55)
Good graft function (n=12)	0.89 (0.24)	0.78 (0.24)	3.15 (0.58)
Chronic rejection (n=4)	1.11 (0.14)^** ^3-152	0.79 (0.27)	4.95 (0.78)^† ^3-153

Results expressed as mean (SD).
3-150 p<0.05, ^**p<0.01, ^†p<0.005 v healthy volunteers.
↵3-152 p<0.01 v control patients with biliary duct strictures.
↵3-153 p<0.005 v patients with good graft function.