Skip to main content

Table 2 Comorbidities and treatments before and after the stabilised IPTW using propensity scores

From: Polymyxin B-immobilised fibre column treatment for acute exacerbation of idiopathic pulmonary fibrosis patients with mechanical ventilation: a nationwide observational study

Variables

All patients

Patients after IPTW estimation

PMX group

(n = 199)

%

mPSL alone group

(n = 5417)

%

SMD

PMX group

(n = 196)

%

mPSL alone group

(n = 5435)

%

SMD

Comorbidity

 Bronchial asthma

10

5.0

259

4.8

1.1

6

3.1

260

4.8

 − 7.8

 Chronic obstructive pulmonary disease

6

3.0

292

5.4

 − 11.8

5

2.4

287

5.3

 − 14.5

 Pneumonia

32

16.1

1033

19.1

 − 7.9

40

20.2

1028

18.9

3.4

 Pulmonary embolism

0

0.0

37

0.7

 − 11.7

37

18.7

37

0.7

 − 11.6

 Bronchiectasis

4

2.0

149

2.8

 − 4.9

5

2.6

147

2.7

 − 0.9

 Pneumothorax

2

1.0

41

0.8

2.7

1

0.5

42

0.8

 − 2.4

 Lung cancer

14

7.0

457

8.4

 − 5.2

22

11.2

454

8.4

10.5

 Other types of cancera

7

3.5

408

7.5

 − 17.6

11

5.7

400

7.4

 − 7.4

 Disseminated intravascular coagulation

39

19.6

473

8.7

31.5

30

15.3

506

9.3

17.3

 Chronic heart failure

28

14.1

1125

20.8

 − 17.7

38

19.3

1118

20.6

 − 3.4

 Acute coronary syndrome

9

4.5

404

7.5

 − 12.4

15

7.6

398

7.3

1.3

 Diabetes mellitus

48

24.1

1452

26.8

 − 6.2

58

29.6

1450

26.7

6.7

 Stroke

6

3.0

294

5.4

 − 12.0

15

7.5

290

5.3

11.0

 Renal failure

55

27.6

543

10.0

46.2

31

15.8

594

10.9

12.8

 Liver dysfunction

9

4.5

276

5.1

 − 2.7

13

6.4

276

5.1

6.3

 Gastroesophageal reflux disease

15

7.5

687

12.7

 − 17.1

24

12.4

677

12.4

 − 0.2

 Urinary tract infection

2

1.0

47

0.9

1.4

2

1.1

47

0.9

2.6

Treatment within 3 days after hospitalisation

 Haemodialysis

40

20.1

144

2.7

57.0

8

4.0

192

3.5

1.3

 High-flow nasal cannula oxygen therapy

7

3.5

204

3.8

 − 1.3

5

2.3

205

3.8

 − 7.5

 Ampicillin/sulbactam

18

9.0

745

13.8

 − 14.8

31

15.9

737

13.6

7.5

 Tazobactam/piperacillin

27

13.6

991

18.3

 − 12.9

42

21.3

985

18.1

8.8

 Broad spectrum β-lactam antibioticsb

133

66.8

2837

52.4

29.8

105

53.6

2880

53.0

1.3

 Fluoroquinolone

99

49.7

1723

31.8

37.1

51

25.8

1772

32.6

 − 14.0

 Anti-MRSA drug

4

2.0

99

1.8

1.3

3

1.4

99

1.8

 − 3.4

 Noradrenaline

0

0.0

75

1.4

 − 16.8

82

41.8

82

1.5

 − 18.3

 Hydrocortisone

3

1.5

119

2.2

 − 5.1

2

0.9

118

2.2

 − 9.1

 Cyclophosphamide (intravenous)

17

8.5

138

2.5

26.4

5

2.8

155

2.9

 − 0.5

 Tacrolimus

3

1.5

51

0.9

5.1

1

0.6

53

1.0

 − 3.5

 Pirfenidone

7

3.5

93

1.7

11.3

1

0.6

96

1.8

 − 7.4

 Nintedanib

1

0.5

42

0.8

 − 3.4

0

0.1

41

0.8

 − 7.9

 Furosemide

52

26.1

1720

31.8

 − 12.4

67

34.1

1712

31.5

5.8

  1. Data were presented as n (%)
  2. IPTW, inverse probability of treatment weighting; PMX, polymyxin B-immobilised fibre column; mPSL, methylprednisolone; SMD, standardised mean difference; MRSA, methicillin-resistant Staphylococcus aureus
  3. aDetailed information in Additional file 2: Table S1
  4. bThird-generation cephalosporin, fourth-generation cephalosporin and carbapenem