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Table 2 Time-to-disposition according to different patient and environmental factors

From: Determinants of time-to-disposition in patients who underwent CT for pulmonary embolism: a retrospective study

Variables

Median Time to Disposition (Hours)

P value a

Meeting the Four-Hour Target (%)

P value a

Patient Factors

Age

<  50 years

5.2

0.87

37

0.75

≥ 50 years

5.4

39

Gender

Male

4.5

0.09

45

0.09

Female

5.4

33

Charlson Comorbidity Index

0

4.8

0.32

40

1.00

1–2

5.4

35

3–4

6.2

21

≥ 5

4.5

43

Clinical Symptoms

Asymptomatic

6.8

0.34

22

0.35

Dyspnea

5.0

0.29

39

0.23

Chest Pain

5.0

0.45

40

0.41

Cough

5.2

0.46

37

0.97

Hemoptysis

3.1

0.11

86

0.01

Leg Pain or Swelling

4.7

0.38

48

0.26

Syncope

5.6

0.82

29

0.64

Clinical Signs

Tachycardia

4.9

0.69

39

0.55

Hypoxia

4.2

0.04

46

0.11

Hypotension

4.4

0.34

17

0.29

Altered Consciousness

3.1

0.01

64

0.03

D-Dimer Assay

Ordered

5.3

0.43

34

0.37

Not Ordered

4.9

39

CT-PA Report

Positive for PE

3.8

0.02

53

0.04

Negative for PE

5.3

34

Environmental Factors

Year of Presentation

2018

5.3

0.86

38

0.87

2019

5.2

36

Month of Presentation

October (Beginning of Academic Year)

5.5

0.88

37

0.62

Other Months

5.2

44

Day of Presentation

Weekday

5.6

0.01

34

0.047

Weekend

4.1

48

Shift Period

Morning

4.6

1.00

42

1.00

Evening

5.2

37

Night

5.5

33

  1. Abbreviation: N number of encounters, CT-PA Computed tomography pulmonary angiography, PE Pulmonary embolism, ED Emergency department
  2. a P value in bold when significant