Table 1

Subject characteristics at time of exercise test, per peak systolic blood pressure reference category

Low SBPpeak
(<10 th)
Normal SBPpeak
(10th −90th)
High SBPpeak
(>90 th)
P value*
No. subjects (%)1644 (23)5094 (71)426 (6)
Age, years57.5±9.558.6±10.855.1±11.4<0.001
Height, m1.76±0.081.76±0.081.77±0.080.026
BMI, kg/m227.9±5.228.7±5.129.7±5.2<0.001
METs7.8±3.19.0±3.49.9±3.6<0.001
SBPrest, mm Hg118±13135±18149±19<0.001
DBPrest, mm Hg76±1083±1089±11<0.001
SBPpeak, mm Hg147±12187±16232±13<0.001
Delta SBP, mm Hg29±1352±1983±20<0.001
SBP/MET-slope, mm Hg/MET5.1±3.37.6±4.411.5±6.7<0.001
Smoking, n (%)880 (54)2509 (49)201 (47)0.005
Diabetes mellitus, n (%)217 (13)718 (14)71 (17)0.095
Hypertension, n (%)864 (53)3050 (60)282 (66)<0.001
Previous CAD, n (%)542 (33)1008 (20)53 (12)<0.001
Hyperlipidaemia, n (%)606 (37)1984 (39)168 (39)0.29
Beta-blocker medication, n (%)507 (31)902 (18)49 (12)<0.001
Stroke, n (%)52 (3)133 (3)10 (2)0.43
Claudication, n (%)61 (4)200 (4)9 (2)0.17
COPD, n (%)85 (5)230 (5)11 (3)0.07
  • *P value for statistical comparison across all three groups with one-way ANOVA (means) or χ2 test (proportions). Reference values from FRIEND (Fitness Registry and the Importance of Exercise: A National Database) published in Sabbahi et al.18

  • ANOVA, analysis of variance; BMI, body mass index; CAD, coronary artery disease; COPD, chronic obstructive pulmonary disease; DBP, diastolic blood pressure; MET, metabolic equivalent; SBP, systolic blood pressure.