2015 (no mask) (n=378) | 2021 (with mask) (n=378) | P value after matching | |
Resting systolic BP | 136.7±16.8 | 135.4±16.7 | 0.20 |
Resting HR | 80.4±14.0 | 81.7±15.7 | 0.20 |
Peak systolic BP | 163.4±17.5 | 162.7±17.7 | 0.62 |
Peak HR | 151.5±15.0 | 152.4±16.6 | 0.45 |
METs | 8.55±2.4 | 8.55±2.7 | 0.99 |
Significant ischaemia | 25 | 29 | 0.67 |
Abnormal segments | 5.9±3 | 6.4±3 | 0.48 |
Positive predictive value | 75% | 80.7% | 0.7 |
Rate pressure product | 24 788±3775 | 24 808±3771 | 0.94 |
BP, blood pressure; HR, heart rate; MET, metabolic equivalent.