Table 3.

Activation of neutrophils from all divers in both groups. Data are the mean ± SD (n = sample number) % of neutrophils (identified in the flow cytometer based on CD66b expression) expressing myeloperoxidase (MPO) and CD18 above a threshold value as an index of cell activation. Pre- and post-day 1 are values from the deep and shallow groups, and those in the third column reflect values from the shallow group, and the statistical analysis compared against the values only takes this group into account (pre- and post-day 1 as repeated measures ANOVA. (* p < 0.001 vs. pre-dive, RM-ANOVA).

	Pre-Dive	Post-Day 1	Post Day 7
% MPO	8.7 ± 4.0 (13)	8.7 ± 6.1 (13)	10.7 ± 5.4 (6) *
% CD18	2.1 ± 1.9 (13)	4.5 ± 3.4 (13)	3.7 ± 4.7 (6)