Table 1

Individual absolute values of the median power frequency (MPF) at frontal locations (Fp1) and central location (C3) at pre- and post-exposure measurements (3 min each).
Nr
 MPF at Fp1 (Hz)
 MPF at C3 (Hz)

Sham
 Diesel
 Sham
 Diesel

pre
 post
 pre
 post
 pre
 post
 pre
 post
1
 5.7
 7.6
 6.4
 8.0
 6.5
 8.7
 6.9
 9.4
2
 7.1
 8.3
 8.7
 12.6
 7.8
 6.1
 9.5
 11.2
3
 7.8
 8.5
 7.4
 8.4
 9.7
 8.4
 6.7
 10.2
4
 8.3
 7.7
 8.7
 9
 11.5
 9.9
 9
 9.6
5
 9.2
 9.1
 9.8
 8.4
 10.5
 12.3
 9.7
 9.2
6
 7.1
 10.7
 8.9
 11
 11
 11
 9.0
 11.9
7
 15.3
 12.7
 9.3
 14.4
 15.1
 13.6
 7.9
 9.1
8
 10.2
 11
 7.4
 11.3
 7.6
 9.1
 8.3
 9.3
9
 7.5
 7.3
 6.6
 7.1
 7
 6.3
 7.2
 8.0
10
 6.7
 7
 8.9
 11.2
 11.2
 12.3
 7.4
 9.1
Mean
 8.5
 9.0
 8.2
 10.1a
 9.9
 9.8
 8.2
 9.7a
SD
 2.7
 1.9
 1.2
 2.3
 2.6
 2.6
 1.1
 1.1

Measurements were done before entering the exposure chamber and after completion of post-exposure interval, in exposure conditions sham and diesel.

a) Significantly different from pre-exposure, P < 0.02, Wilcoxon paired test

Crüts et al. Particle and Fibre Toxicology 2008 5:4   doi:10.1186/1743-8977-5-4