Table 3.

Linear associations of PSS with cardiovascular and endocrine parameters at rest, with their change from rest to stress (response) and with cognitive performance measures during stress, in men and women

	Women (n = 45)				Men (n = 43)				Sex differences
	Rest	P	Response	P	Rest	P	Response	P	P (rest)	P (response)
HR	−0.19	0.15	0.17	0.09	0.01	0.92	−0.24	0.02	0.28	0.004
SVi	−0.22	0.08	0.11	0.16	−0.03	0.79	−0.13	0.11	0.29	0.04
COi	−0.28	0.02	0.21	0.054	0.03	0.80	−0.34	0.002	0.07	< 0.001
TPRi	0.31	0.03	−0.21	0.03	−0.02	0.91	0.18	0.07	0.11	0.006
TACi	−0.04	0.75	0.02	0.89	−0.09	0.49	0.09	0.49	0.80	0.69
SBP	−0.13	0.33	0.09	0.32	0.03	0.83	−0.19	0.04	0.40	0.03
MBP	−0.02	0.88	0.05	0.63	−0.02	0.91	−0.14	0.15	0.97	0.18
DBP	−0.07	0.61	0.10	0.32	0.03	0.81	−0.14	0.17	0.60	0.10
CPi	−0.22	0.048	0.19	0.09	0.03	0.78	−0.36	0.002	0.09	< 0.001
Cortisol	0.04	0.83	−0.27	0.01	−0.05	0.77	0.04	0.73	0.72	0.047
Questions answered	—	—	0.29	0.04	—	—	−0.10	0.46	—	0.04
Questions correct	—	—	0.30	0.04	—	—	−0.09	0.51	—	0.03
Time to answer	—	—	−0.23	0.09	—	—	0.19	0.18	—	0.12

HR, heart rate; SVi, stroke volume index; COi, cardiac index; TPRi, total peripheral resistance index; TACi, total arterial compliance index; SBP, systolic blood pressure; MBP, mean blood pressure; DBP, diastolic blood pressure; CPi, cardiac power index. Indexed variables were adjusted for body surface area. Relationships are expressed as standard deviation (SD) of each parameter per SD of PSS score and result from multilevel regression models, adjusted for age, menstrual phase and percentage body fat.