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Table 3 Logistic regression analysis of D-dimer-related factors

From: Peripherally inserted central venous catheter in upper extremities leads to an increase in D-dimer and deep vein thrombosis in lower extremities

Factors

D-dimer

(> 0.5 mg/L)

D-dimer

(≤ 0.5 mg/L)

Univariate

Multivariate

n = 597

s = 763

OR (95 % CI)

P

OR (95 % CI)

P

PICC

80

21

5.467 (3.338–8.956)

0.000

3.354 (1.733–6.346)

0.000

Age (year, mean ± standard deviation)

61.91 ± 15.50

60.17 ± 14.46

1.008 (1.001–1.015)

0.033

1.014 (1.006–1.022)

0.001

Male

339

486

0.749 (0.602–0.932)

0.010

0.852 (0.670–1.082)

0.189

Malignant tumor

85

38

3.167 (2.126–4.720)

0.000

0.785 (0.430–1.435)

0.432

Recent surgery

158

64

3.931 (2.872–5.381)

0.000

4.944 (3.015–8.107)

0.000

Cerebral hemorrhage

58

41

1.895 (1.251–2.870)

0.003

1.245 (0.772–2.009)

0.369

Ischemic stroke

192

330

0.622 (0.497–0.778)

0.000

0.691 (0.531–0.901)

0.006

Parkinson’s disease

19

64

0.359 (0.213–0.606)

0.000

0.461 (0.266-0.800)

0.006

Infection

121

85

2.028 (1.500–2.740)

0.000

3.078 (2.218–4.271)

0.000

BMI ≥ 25

42

57

0.937 (0.620–1.148)

0.759

0.641 (0.400-1.026)

0.064

Unconsciousness

126

127

1.340 (1.019–1.762)

0.036

0.828 (0.579–1.184)

0.301

Critical illness

78

38

2.867 (1.915–4.294)

0.000

2.844 (1.754–4.613)

0.000

  1. Note: PICC refers to peripherally inserted central venous catheter; BMI refers to body mass index; malignant tumor refers to cases treated within the prior six months; recent surgery refers to neurosurgery (over two hours) performed within six months; critical illness refers to the circumstance where patients have a high risk of disease variation or death