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Table 1 Characteristics of LETM patients with and without DVT

From: Prevalence and risk factors of deep venous thrombosis in patients with longitudinally extensive transverse myelitis: one center data from China

Variable

Total

(N = 255)

With DVT

(N = 30)

Without DVT (N = 225)

P value

Age (years), mean ± SD

41.3 ± 13.93

53.73 ± 11.94

39.65 ± 13.34

< 0.001

Sex, n(%)

 Men

69

7(23.33%)

62(27.56%)

0.62

 Women

186

23(76.67%)

163(72.44%)

 

Inpatient stays (days), mean ± SD

20.47 ± 9.90

31.87 ± 17.68

18.95 ± 7.14

< 0.001

Inpatient costs (CNY), mean ± SD

19,627.22±14,019.56

38,178.44 ± 30,309.69

17,153.73 ± 7190.18

< 0.001

Comorbidity, n(%)

 Hematological abnormality (anemia, leukopenia)

13(5.10%)

1(3.33%)

12(5.33%)

0.64

 Connective tissue diseases

39(15.29%)

5(16.67%)

34(15.11%)

0.82

 Thyroid dysfunction

22(8.63%)

3(10.00%)

19(8.44%)

0.78

 Diabetes mellitus type 2

12(4.71%)

3(10.00%)

9(4.00%)

0.14

 Hypertension

27(10.59%)

5(16.67%)

22(9.78%)

0.25

 Dyslipidemia

80(31.37%)

5(16.67%)

75(33.33%)

0.06

 Smoking

42(16.47%)

9(30%)

33(14.67%)

0.06

Etiology, n(%)

 NMOSD

116(45.49%)

13(43.33%)

103(45.78%)

0.85

  First attack

68(26.67%)

6(20%)

62(27.56%)

0.38

  Relapses

48(18.82%)

7(23.33%)

41(18.22%)

 

 Infection

57(22.35%)

9(30%)

48(21.33%)

0.35

 CIS

47(18.43%)

4(13.33%)

43(19.11%)

0.62

 Vascular myelopathy

9(3.53%)

1(3.33%)

8(3.56%)

0.71

 Neoplastic

5(1.96%)

1(3.33%)

4(1.78%)

0.47

 Compressive

3(1.18%)

0

3(1.33%)

1.00

 Nutritional

3(1.18%)

0

3(1.33%)

1.00

 Neurosarcoidosis

2(0.78%)

0

2(0.89%)

1.00

 Idiopathic

13(5.10%)

2(6.67%)

11(4.89%)

0.66

Muscle strength of left leg, n (%)

 Grade 0

19(7.45%)

8(26.67%)

11(4.89%)

< 0.001

 Grade 1

7(2.75%)

2(6.67%)

5(2.22%)

 

 Grade 2

14(5.49%)

5(16.67%)

9(4.00%)

 

 Grade 3

25(9.80%)

4(13.33%)

21(9.33%)

 

 Grade 4

73(28.63%)

5(16.67%)

68(30.22%)

 

 Grade 5

117(45.88%)

6(20.00%)

111(49.33%)

 

Muscle strength of right leg, n (%)

 Grade 0

19(7.45%)

8(26.67%)

11(4.89%)

< 0.001

 Grade 1

10(3.92%)

4(13.33%)

6(2.67%)

 

 Grade 2

11(4.31%)

4(13.33%)

7(3.11%)

 

 Grade 3

21(8.24%)

4(13.33%)

17(7.56%)

 

 Grade 4

68(26.67%)

8(26.67%)

60(26.67%)

 

 Grade 5

126(49.41%)

2(6.67%)

124(55.11%)

 

Location of lesions, n (%)

 Cervical

204(80.00%)

25(83.33%)

179(79.56%)

0.63

 Thoracic

133(52.16%)

17(56.67%)

116(51.56%)

0.60

 Lumbar

8(3.14%)

1(3.33%)

7(3.11%)

1.00

Segments of lesions, mean ± SD

5.20 ± 3.56

6.77 ± 4.98

5 ± 3.30

0.06

Enhancement of lesions, n (%)

 Yes

115(45.10%)

13(43.33%)

102(45.33%)

0.60

 No

108(42.35%)

11(36.67%)

97(43.11%)

 

 Unknown

32(12.55%)

6(20.00%)

26(11.56%)

 

Internals between LETM symptoms onset and US screening(days), mean ± SD

18.45 ± 7.40

21.40 ± 10.26

18.07 ± 6.87

0.025

Coagulogram abnormal, n (%)

108(42.35%)

14(46.67%)

94(41.78%)

0.61

Baseline D-dimer elevated, n (%)

24(9.41%)

17(56.67%)

7(3.11%)

<0.001