Table 1 Analysis of the related factors of lower extremity deep vein thrombosis

sex

0.974

0.324

male

95(17.34%)

244

female

244(19.30%)

1020

age groups

14.336

0.014

18–40

2(11.11%)

16

41–60

12(11.32%)

94

61–70

32(12.65%)

224

71–80

119(21.64%)

431

81–90

150(19.84%)

606

>91

24(18.60%)

105

comorbidity

21.796

<0.001

0

3(2.77%)

105

1

23(17.97%)

105

2

54(16.88%)

266

≥ 3

259(20.62%)

997