Table 2.

Gamma-glutamyltranspeptidase-to-platelet ratio at different groups

Subgroup (age)	Gamma-glutamyltranspeptidase-to-platelet ratio (male)	Gamma-glutamyltranspeptidase-to-platelet ratio (female)	P value
20 ~ 29	0.27 (0.19–0.35)	0.14 (0.11–0.18) ∆∆	0.000
30 ~ 39	0.24 (0.18–0.32)	0.16 (0.13–0.21)*	0.000
40 ~ 49	0.21 (0.15–0.29) ∆	0.19 (0.15–0.25) ##	0.033
50 ~ 59	0.22 (0.16–0.32) ∆	0.21 (0.15–0.29)	0.204
60 ~ 69	0.20 (0.14–0.28) ∆	0.23 (0.17–0.31)	0.002
70 ~ 79	0.17 (0.12–0.25) ∆ #	0.21 (0.14–0.31)	0.001

^∆compared with group age 20 ~ 39 (P < 0.05) ^#compared with group age 20 ~ 69(P < 0.01)

^∆∆compared with group age 30 ~ 79(P < 0.05)*compared with group age 40 ~ 79 (P < 0.05)

^## compared with group age 50 ~ 79(P < 0.05)