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. 2017 Oct 1;8(4):207–216. doi: 10.15171/ijoem.2017.1100
Table 4: Pulmonary function indices of catering staff and unexposed group (before and after exposure). Values are mean (SD) percent predicted value.
Index Kitchen workers Comparison group (n=60) p value
Pre-shift
(n=60)
Post-shift
(n=60)
Pre-shift vs
post-shift
exposed group
Pre-shift exposed vs
unexposed group
post-shift exposed vs
unexposed group
VC 93.6 (11.3) 85 (8.9) 93.5 (11.3) <0.001 0.941 <0.001
FVC 91 (11.3) 86.5 (11.1) 92 (11.2) <0.001 0.636 0.014
FEV1 90 (10.7) 85.4 (11.7) 90.8 (17.5) <0.001 0.795 0.008
PEF 93.3 (19.5) 89.9 (20.2) 97.8 (17.8) 0.051 0.180 0.007
FEV1/FVC 83 (8.3) 82 (9.4) 82.3 (6.3) 0.682 0.734 0.826
FEV1/VC 77.4 (11.7) 80.6 (10.2) 78.2 (14.1) 0.008 0.597 0.328