Observation of the effect of angiojet to treat acute lower extremity arterial embolization

Table 2 Comparison of age, pre-operation, body mass index and course of disease between the two groups (n, mean ± SD)

Groups	Age (yr)	Pre-operation ABI	BMI	Course of disease (h)
Control group (n = 34)	57-81 (69.94 ± 7.66)	0.21-0.46 (0.34 ± 0.06)	18.10-24.59 (21.79 ± 1.97)	2.70-63.93 (13.25 ± 10.87)
Observation group (n = 28)	55-83 (69.00 ± 7.29)	0.21-0.46 (0.33 ± 0.05)	18.19-24.62 (21.97 ± 1.88)	2.65-64.12 (13.21 ± 10.84)
t value	0.059	0.538	0.381	0.015
P value	0.956	0.592	0.705	0.989

ABI: Ankle brachial index; BMI: Body mass index.