Table 2 Participant characteristics

From: Harnessing deep learning to detect bronchiolitis obliterans syndrome from chest CT

 

Non-BOS

BOS

p-value

Test

Sex (male/female)

22/27

9/17

0.54

Chi-squared independence test

Age at transplantation

M = 47.75

SD = 13.77

N = 49

M = 46.77

SD = 15.74

N = 26

0.78

Student’s t-test for independent samples

FEV1

3 months after TX

M = 0.99

SD = 0.09

N = 39

M = 0.95

SD = 0.11

N = 20

0.12

Student’s t-test for independent samples

FEV1 30 months after TX

M = 0.95

SD = 0.05

N = 34

M = 0.85

SD = 0.17

N = 21

0.02

Welch’s t-test for independent samples

  1. Characteristics of patients with or without BOS including sex, age, and FEV1 relative to best FEV1 at 3 or 30 months post lung transplant.
  2. N lower than 26 for BOS patients and 49 for non-BOS patients means that, for some patients, no PFT has been recorded within 1 month of the query date.
  3. M mean, SD standard deviation, N number of patients, TX transplant, BOS bronchiolitis obliterans syndrome, FEV1 forced expiratory volume in the first second; We report the FEV1 relative to patientʼs previous best FEV1.
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