Vascular Specialist International
Table. 2.

Table. 2.

Characteristics of patients with unfavorable outcomes (n=26)

Risk factor Unfavorable outcome
(n=26, 13.1%)
Univariate Multivariate
P-valuea P-valuea 95% CI
Age (y) 74.5±13.2 0.449 - -
≥71 19 (73.1) - 0.305 0.566-6.169
Body mass index 22.55±7.94 - - -
>25 5 (19.2) 0.126 0.890 0.255-3.277
Symptom of DVT and PE 20 (76.9) 0.227 0.415 0.501-5.343
Subjective leg symptom (edema) 10 (38.5) 0.650 - -
Subjective chest symptom 11 (42.3) 0.338 - -
Risk factor for VTE
History of VTE 2 (7.7) >0.999 - -
Immobilization ≥3 d 19 (73.1) 0.032 0.092 0.849-8.644
Recent surgery <4 wk 7 (26.9) 0.985 - -
Active malignancy and/or chemotherapy 8 (30.8) 0.329 0.457 0.464-5.518
Comorbidities
Hypertension 15 (57.7) 0.990 - -
Diabetes mellitus 11 (42.3) 0.102 0.637 0.443-3.777
Coronary artery disease 3 (11.5) 0.447 0.228 0.544-12.774
Chronic kidney disease 2 (7.7) 0.336 - -
Chronic heart failure 2 (7.7) 0.641 - -
Smoking 5 (19.2) 0.478 - -
Pneumonia 6 (23.1) 0.589 - -
Chronic obstructive pulmonary disease 4 (15.4) 0.266 0.456 0.082-3.072
All pulmonary disease 11 (42.3) 0.102 - -
Cerebrovascular accident 4 (15.4) 0.608 - -
Dementia 6 (23.1) 0.192 0.385 0.118-2.285
Vital sign
Pulse rate ≥110/min 13 (50.0) 0.001 <0.001 3.418-44.744
Systolic blood pressure <90 mmHg 20 (76.9) 0.001 - -
Respiratory rate ≥30/min 8 (30.8) 0.001 0.013 1.429-21.392
Body temperature <36°C 2 (7.7) 0.046 0.512 0.108-86.780
Types of VTE
Isolated DVT 7 (26.9) 0.605 - -
PE 19 (73.1) 0.605 - -
Inferior vena cava filter insertion 6 (23.1) 0.695 - -
Anticoagulation treatment 23 (88.8) 0.385 0.075 0.050-1.155
(n=23, 12.4%)
Novel oral anticoagulants (total n=185) 14 (60.9) 0.583 - -
(n=24, 18.0%)
Arterial saturation <90% (total n=133) 12 (50.0) 0.001 - -
(n=22, 13.9%)
Elevated D-dimer (total n=158) 22 (100.0) 0.594 - -
(n=24, 18.6%)
Elevated troponin I (total n=129) 11 (45.8) 0.030 - -

Values are presented as mean±standard deviation or number (%).

CI, confidence interval; DVT, deep venous thrombosis; PE, pulmonary embolism; VTE, venous thromboembolism; -, not available.

aChi-squared test or Fisher exact test, logistic regression model.

Vasc Specialist Int (2021) 37:46 https://doi.org/10.5758/vsi.210041
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