Table 5.

Wilcoxon Signed Ranks Tests for Heart Rate (HR), Stroke Volume (SV) and Total Arterial Compliance (CwK).

Test Statisticsa
	HR during smoking vs HR at rest	HR following caffeine consumption vs HR during smoking	SV following caffeine consumption vs SV at rest	SV following caffeine consumption vs SV during smoking	CwK during smoking vs CwK at rest	CwK following caffeine consumption vs CwK at rest
	Group B	Group D	Group C	Group D	Group B	Group C
Z	−6.782b	−5.457b	−4.362b	−3.807b	−6.526b	−6.722b
Asymp. Sig. (2-tailed)	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001

^aWilcoxon Signed Ranks Test,.

^bGrouping Variable: Groups.