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Table 1 Clinical and spirometric characteristics at baseline. Description and comparison between the three groups

From: Late viral or bacterial respiratory infections in lung transplanted patients: impact on respiratory function

 

Total

VIG

BIG

CG

p-value

N = 99

N = 38

N = 25

N = 36

Main characteristics

 Age in years, median (IQR)

57.5 (48.6–62.0)

57.7 (52.4–60.3)

57.7 (46.2–62.0)

56.3 (49.9–63.3)

0.92

 Masculine gender, n (%)

64 (65)

27 (71)

18 (72)

19 (53)

0.17

Comorbidities at enrollment

 Renal dysfunction, n (%)

9 (9)

8 (21)

1 (4)

0 (0)

0.01

 Diabetes mellitus, n (%)

63 (64)

23 (61)

20 (80)

20 (56)

0.13

 Arterial hypertension, n (%)

53 (54)

22 (58)

14 (56)

17 (47)

0.63

Underlying respiratory diseases

 Bronchial dilatation (%)

6 (6)

2 (5)

3 (12)

1 (3)

0.38

 Emphysema/COPD (%)

30 (30)

14 (37)

8 (32)

8 (22)

0.38

 Alpha-1 antitrypsine deficiency (%)

8 (8)

2 (5)

2 (8)

4 (11)

0.74

 Pulmonary fibrosis (%)

42 (42)

15 (40)

10 (40)

17 (47)

0.77

 Other interstitial disease (%)

13 (13)

5 (13)

2 (8)

6 (17)

0.65

Immunosuppresive therapy

 Tacrolimus (%)

89 (90)

35 (92)

24 (96)

30 (83)

0.27

 Mycophenolate mofetil (%)

83 (84)

31 (82)

24 (96)

29 (81)

0.41

Graft features

 Second graft (%)

3 (3)

2 (5)

1 (4)

0 (0)

0.47

 Bilateral lung transplant (%)

26 (26)

9 (24)

8 (32)

9 (25)

0.75

 Prior viral respiratory infection (%)

6 (6)

2 (5)

3 (12)

1 (3)

0.38

 Treatment for AR 3 months prior to inclusion (%)

12 (12)

9 (23)

3 (12)

0 (0)

< 0.01

Spirometric characteristics

 Last FEV-1 (mL/s)

1670 (1410–2100)

1670 (1410–2210)

1620 (1410–2100)

1770 (1498–2062)

0.49

 BOS prior to enrollmenta (all stage) (%)

13 (13)

9 (24)

3 (12)

1 (3)

0.02

  1. Abbreviations: AR acute rejection; BIG bacterial infections group; CG control group; COPD Chronic obstructive pulmonary disease; FEV-1 forced expiratory volume in 1 s; VIG viral infections group
  2. a last FEV-1/best FEV-1