Table 1.

Summary of incidence of DVT and PE with potential risk factors

Parameter	DVT	PE	p value
Surgical (472)	0.42% (2)	0.21% (1)	0.82
Nonsurgical (700)	0.43% (3)	0.43% (3)
Age < 40 years (430)	0% (0)	0% (0)	0.068
Age ≥ 40 years (725)	0.69% (5)	0.55% (4)
BMI < 30 (632)	0.16% (1)	0.32% (2)	0.285
BMI ≥ 30 (518)	0.77% (4)	0.39% (2)
CHF (30)	0% (0)	3.33% (1)	0.016
NonCHF (1142)	0.44% (5)	0.26% (3)
History of DVT (1)	100% (1)	0% (0)	0
No prior history of DVT (1171)	0.34% (4)	0.34% (4)
History of PE (4)	0% (0)	0% (0)	0.985
No prior history of PE (1168)	0.43% (5)	0.34% (4)

DVT = deep vein thrombosis; PE = pulmonary embolism.