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Table 3 Clinical characteristics of candidates with IPF (n = 57) and non-IPF ILD (n = 57)

From: Waiting time and mortality rate on lung transplant candidates in Japan: a single-center retrospective cohort study

 

IPF (n = 57)

non-IPF ILD (n = 57)

p value

Age, median (IQR)

50 (44–56)

47 (37–52)

0.039

Sex, male (%)

45 (78.9)

32 (56.1)

0.016

Body mass index (kg/m2), median (IQR)

22.6 (18.8–26.2)

19.8 (16.4–24.5)

0.053

Pre-transplant condition, n (%)

  

History of malignancy

3 (5.3)

7 (12.3)

0.321

Connective tissue disorders

2 (3.5)

33 (57.9)

< .001

Supplemental oxygen

44 (77.2)

48 (84.2)

0.476

Pulmonary function, median (IQR)

  

Predicted FVC

49.0 (32.9–64.9)

43.7 (29.9–56.8)

0.314

6 min walk (m)

273 (138–369)

300 (203–370)

0.449

Estimated RVP (mmHg)

34 (23–47)

35 (25–47)

0.849

Laboratory values, median (IQR)

  

Hemoglobin (g/dL)

14.0 (12.6–15.1)

13.5 (12.3–15.0)

0.399

Albumin (g/dL)

3.8 (3.5–4.1)

3.9 (3.6–4.1)

0.444

Creatinine (mg/dL)

0.72 (0.61–0.83)

0.90 (0.55–0.81)

0.116

Outcomes, n (%)

  

0.039

Transplanted

13 (22.8)

18 (31.6)

 

Dead

35 (61.4)

23 (40.4)

 

Waiting (on March 2021)

9 (15.8)

16 (28.1)

 

Wait time, median day (IQR)

  

Time to transplant (n = 13, 18)

738 (291–913)

651 (464–850)

0.977

Time to death (n = 35, 23)

278 (98–512)

396 (122–514)

0.623

Time to events/censoring (n = 57, 57)

378 (160–572)

495 (226–646)

0.267

  1. FVC forced vital capacity, ILD Interstitial lung disease, IPF idiopathic pulmonary fibrosis, IQR interquartile range, RVP right ventricular pressure