Table 1.

Summarized results of the test for linear trend in ST secretory responses to Hz over a 24 h time-course^a

Factors tested	Slope	R2	P valueb
CXCL8	0.223	0.161	0.0008
CCL3	0.14	0.12	0.009
CCL4	0.212	0.214	<0.0001
sICAM	0.232	0.178	0.0019
MIF	0.143	0.08	0.097
sTNFR1	0.043	0.016	0.46
sTNFR2	0.05	0.025	0.293
TNF	0.097	0.117	0.008

^aFor data shown in Figure 3.

^bSignificant values are in bold.