Skip to main content

Table 4 Baseline characteristics of patients according to their FEV1 at T0

From: Diisocyanate-induced asthma in Switzerland: long-term course and patients’ self-assessment after a 12-year follow-up

 

FEV1 ≥ 80% pred. (n = 28)

FEV1 < 80% pred. (n = 7)

p-value

Age

38 ± 13

42 ± 10

0.44

FEV1/FVC

77 ± 8

72 ± 11

0.20

Current smoking

8 (29%)

2 (29%)

1.0

Pack years*

7 (15)

20 (13)

0.37

Total exposure time (months)

51 (99)

53 (129)

0.68

Symptomatic exposure time (months)

13 (34)

8 (14)

0.22

  1. Legend: FVC = forced expiratory vital capacity. FEV1 = forced expiratory volume in 1 second. *Pack-years for smokers and ex-smokers added.
  2. Data is presented as mean ± SD, median and interquartile range (IQR) or number (%).