表 3. Comparison of preoperative-to-postoperative changes in coagulation parameters between VTE and non-VTE groups.

VTE与非VTE患者术前后凝血指标变化程度比较

Parameter	Non-VTE (n = 265)	VTE (n = 42)	t	P
The abbreviations are explained in the note to Tablle 2.
PT/s	0.47 ± 1.03	0.63 ± 0.63	－0.990	0.323
APTT/s	0.36 ± 2.88	0.80 ± 2.83	－0.934	0.351
TT/s	－1.66 ± 8.52	－1.22 ± 1.09	－0.331	0.741
FIB /(g/L)	0.98 ± 1.91	1.29 ± 0.81	－1.038	0.300
D-dimer /(mg/L)	0.77 ± 2.10	2.73 ± 5.38	－4.248	< 0.001
PLT/(× 109 L-1)	－18.44 ± 55.62	－13.45 ± 34.04	－0.564	0.573
HGB/(g/L)	－11.86 ± 12.70	－14.14 ± 11.48	1.094	0.275