Table 1: Subject demographics and clinical characteristics ( )1.

Normal cortisol ( )High cortisol
( )
Statistic
( or )
value2  ( )*

Sociodemographics
 Age, years, mean (SD)67 (12)65 (11)0.620.43
 Gender, % male ( )92.3 (24)80 (24)1.720.19
 Marital status, % married ( )88.5 (23)73.3 (22)1.620.20
 Ethnicity, % Caucasian ( )84.6 (22)93.3 (28)1.020.31
 Employment, % employed ( )42.3 (11)30 (9)0.030.86
 Total education, years, mean (SD)16.5 (3)17 (3.5)0.590.45
 Time since acute coronary event (wks)21.3 (40.9)28.4 (77.9)0.180.68
Vascular risk factors, % ( )
 Hypertension53.8 (14)63.3 (19)0.520.47
 Hyperlipidemia100 (26)100 (30)
 Diabetes7.7 (2)16.7 (5)1.030.31
 BMI, kg/m2, mean (SD)27.1 (5.0)27.4 (3.5)0.100.75
 Waist, cm, mean (SD)96.2 (10.1)98.8 (8.8)1.130.29
Cardiac history, % ( )
 PCI57.7 (15)43.3 (13)1.150.28
 CABG23.1 (6)50 (15)4.310.04*
 MI57.7 (15)40 (12)1.750.19
Cardiopulmonary fitness parameters
 Maximum heart rate, bpm, mean (SD)118.0 (18.1)121.2 (21.7)0.360.55
 Maximum systolic blood pressure,
mm Hg, mean (SD)
175.7 (23.5)176.6 (27.0)0.020.90
 Maximum diastolic blood pressure,
mm Hg, mean (SD)
76.2 (9.0)79.9 (11.1)1.860.18
 Maximal oxygen uptake, mL/kg/min, mean (SD)19.7 (4.5)19.6 (4.6)0.0010.98
Concomitant medications, % ( )
 Beta-blocker80.8 (21)70 (21)0.860.35
 Calcium channel blocker26.9 (7)10 (3)2.720.10
 Diuretics23.1 (6)20 (6)0.080.78
 Antihypertensives50 (13)63.3 (19)1.010.32
 Statins100 (26)100 (30)
 Antidiabetics3.8 (1)16.7 (5)2.390.12
 Antidepressants3.8 (1)10 (3)0.800.37
 Anxiolytics11.5 (3)3.3 (1)1.410.23
Psychosocial assessments
 PSS, average over one year (SD)19.8 (11.4)18.6 (10.7)0.160.69
 Depression, % ( )26.9 (7)30 (9)0.070.80

1PCI: percutaneous coronary intervention; CABG: coronary artery bypass graft; MI: myocardial infarction; bpm: beats per minute; PSS: perceived stress scale.
2Two-tailed significance in Pearsons or one-way ANOVA.