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Official Journal of the Italian Society of Orthopaedics and Traumatology

Table 3 Results

From: Risk factors for preoperative deep venous thrombosis in hip fracture patients: a meta-analysis

Factors

I2 (%)

P

OR

95% CI

P

    

Lower

Upper

 

Age

0

0.52

0.13

0.06

0.21

0.0003

 60–70 years vs > 90 years

0

0.32

0.04

0.01

0.32

0.002

 70–80 years vs > 90 years

0

0.84

0.25

0.10

0.60

0.002

 80–90 years vs > 90 years

0

0.83

0.23

0.09

0.63

0.004

 60–70 years vs 70–80 years

35

0.22

0.73

0.44

1.22

0.23

 60–70 years vs 80–90 years

28

0.25

0.77

0.47

1.27

0.31

 70–80 years vs 80–90 years

0

0.99

1.02

0.68

1.52

0.93

Sex

22

0.16

0.82

0.72

0.92

0.0009

Body mass index

0

0.92

0.07

− 0.03

0.17

0.19

  < 18.5 kg/m2 vs > 28 kg/m2

0

0.84

0.46

0.24

0.90

0.02

 24.0–27.9 kg/m2 vs > 28 kg/m2

0

0.38

0.59

0.39

0.91

0.02

 < 25 kg/m2 vs > 25 kg/m2

0

0.37

1.14

0.55

2.33

0.23

  < 18.5 kg/m2 vs 18.5–23.9 kg/m2

0

0.58

1.00

0.62

1.61

1.00

  < 18.5 kg/m2 vs 24.0–27.9

0

0.81

0.81

0.50

1.32

0.40

 18.5–23.9 kg/m2 vs 24.0–27.9 kg/m2

0

0.75

0.79

0.62

1.01

0.06

 18.5–23.9 kg/m2 vs > 28 kg/m2

0

0.60

0.71

0.45

1.12

0.14

Type of hip fracture

      

 Intertrochanteric fracture vs femur neck fracture

0

0.89

1.43

1.20

1.72

 < 0.0001

 Intertrochanteric fracture vs subtrochanteric fracture

0

0.53

0.28

0.14

0.55

0.0003

 Femur neck fracture vs subtrochanteric fracture

0

0.48

0.34

0.19

0.60

0.0002

 Time from injury to surgery

0

0.76

2.06

1.40

2.72

 < 0.00001

  ≥ 5 days vs < 5 days

0

0.68

4.54

2.50

8.25

 < 0.00001

 Time from injury to admission

0

0.49

0.54

0.44

0.65

 < 0.00001

 Location

0

0.36

1.07

0.72

1.58

0.75

 Allergy

0

0.95

0.97

0.67

1.40

0.86

 Smoking

0

0.50

1.45

1.11

1.89

0.007

 Thrombosis history

0

0.52

5.28

2.85

9.78

 < 0.00001

 Anti-platelet drug

12

0.32

0.51

0.30

0.85

0.01

 Injury side

0

0.84

0.84

0.68

1.03

0.09

 Injury mechanism

0

0.54

0.58

0.38

0.87

0.009

ASA class

      

 ASA III and ASA IV

7

0.34

0.51

0.17

1.53

0.23

 ASA I and ASA II

0

0.84

0.39

0.21

0.70

0.002

 ASA I and ASA III

0

0.65

0.31

0.17

0.58

0.0002

 ASA I and ASA IV

0

0.50

0.13

0.13

0.03

0.49

 ASA III and ASA IV

0

0.90

0.21

0.06

0.79

0.02

 Hypertension

0

0.55

1.03

0.91

1.16

0.63

 Diabetes

0

0.75

1.13

0.90

1.42

0.28

 Coronary heart disease

0

0.55

1.25

1.07

1.47

0.006

 Cerebrovascular accident

0

0.52

1.09

0.92

1.30

0.32

 Cancer

0

0.75

0.84

0.60

1.18

0.33

 Dementia

4

0.37

1.72

1.10

2.67

0.02

 Liver and kidney Disease

0

0.41

1.91

1.12

3.25

0.02

 Liver disease

0

0.53

0.91

0.53

1.57

0.75

 Kidney disease

0

0.42

1.26

0.84

1.88

0.26

 Pulmonary disease

0

0.57

1.55

1.07

2.33

0.02

 Arrhythmia

0

0.61

1.14

0.79

1.63

0.48

 Stroke

0

0.66

1.02

0.64

1.64

0.92

 Alzheimer’s disease

0

0.44

1.52

0.78

2.97

0.22

 Hemoglobin

6

0.38

− 0.32

− 0.43

− 0.21

 < 0.00001

 Platelet

0

0.56

2.03

− 7.46

11.52

0.68

 Activated partial thromboplastin time

0

0.51

− 0.37

− 0.78

0.04

0.08

 Prothrombin time

0

0.86

0.15

0.00

0.30

0.05

 Fibrinogen

0

0.73

0.20

0.08

0.32

0.0009

 D-dimer

0

0.88

− 0.20

− 0.97

0.58

0.62

 C-reactive protein

0

0.56

5.95

1.04

10.85

0.01

 Albumin

0

0.74

1.42

1.10

1.82

0.006