Table 2.

Prothrombin time and INR before and after valve replacement (second, x ± s)

Time (week)	Control group		Cases	Experimental group		Cases
	pro time	INR		pro time	INR
Before	7.12 ± 0.12	0.62 ± 0.02	8	6.56 ± 0.43	0.59 ± 0.02	9
After
1	7.0 ± 0.78	0.64 ± 0.06	8	6.18 ± 0.92	0.52 ± 0.08	9
2	7.53 ± 0.76	0.62 ± 0.04	8	6.42 ± 0.98	0.55 ± 0.96	9
4	7.78 ± 1.04	0.63 ± 0.05	6	7.97 ± 1.34	0.60 ± 0.01	9
8	7.10 ± 0.00	0.62 ± 0.02	3	6.83 ± 0.59	0.58 ± 0.05	9

Note: P > 0.05 vs all groups.

Abbreviation: INR, international normalized ratio.