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 (%).