Table 5. The frequency of the adverse events according to the occurrence of WRN.

	No WRN (N = 1047, 80.7%)	WRN (N = 250, 19.3%)	P-value
Admission rate within 1month (1) †	19.5% (N = 204)	22.0% (N = 55)	0.379
Admission rate within 3month (2) ††	27.9% (N = 292)	33.6% (N = 84)	0.075
Acute disease ††† within 1month (3)	24.6% (N = 258)	28.0% (N = 70)	0.292
Acute disease within 3month (4)	35.4% (N = 371)	38.8% (N = 97)	0.341
ER visit within 1month (5)	21.4% (N = 224)	24.0% (N = 60)	0.395
ER visit within 3month (6)	28.4% (N = 297)	32.0% (N = 80)	0.278
Sum of (1), (3), and (5)	43.9% (N = 460)	45.6% (N = 114)	0.671
Sum of (2), (4), and (6)	57.0% (N = 597)	60.0% (N = 150)	0.433

^†Post event (INR>3) 1 month.

^††Post event (INR>3) 3 month.

^†††Acute disease includes infectious disease, ischemic heart disease, cerebrovascular disease, injuries, and poisoning.