Table 4.

The average age, Creatinine concentration, THP concentration and THP/Creat ratio in healthy subjects, stone patients

	No. of sample	Age (age range) (years)	Creatinine concentration (mmol/L)	THP concentration (μg/mL)	THP/Creat ratio (mg/mmol)
Healthy subjects	117	32 (18–86)	8.14 ± 0.40	53.65 ± 3.84	7.62 ± 0.50
Male	41	52 (19–86)	9.15 ± 0.74	37.66 ± 4.12	5.25 ± 0.68
Female	76	21 (18–60)	7.59 ± 0.46	62.28 ± 5.23a	8.89 ± 0.63b
Stone patients	58	52 (28–74)	7.94 ± 0.54	1.71 ± 0.19c	0.29 ± 0.04d
Male	34	52 (36–74)	7.50 ± 0.67	2.03 ± 0.26	0.35 ± 0.05
Female	24	52 (28–68)	8.57 ± 0.88	1.25 ± 0.24	0.21 ± 0.06

All the value expressed as mean ± SE.

^aSignificant compared with male healthy subjects, P = 0.0004

^bSignificant compared with male healthy subjects, P = 0.0002

^cSignificant compared with healthy subjects, P = 0.0001

^dSignificant compared with healthy subjects, P = 0.0003