Table 3.
Cardiopulmonary exercise test characteristics after propensity score matching.
| Characteristic | Pre-pandemic | During-pandemic | Post-pandemic | P |
|---|---|---|---|---|
| n = 1,503 | n = 1,503 | n = 1,503 | ||
| Peak VO2, L/min | 1.14 (0.31) | 1.12 (0.34) | 1.17 (0.35)*,† | < 0.001 |
| Peak VO2/kg, ml/min/kg | 15.56 (3.74) | 15.07 (4.09)* | 15.69 (4.04)† | < 0.001 |
| Peak METs | 4.44 (1.07) | 4.31 (1.17)* | 4.48 (1.15)† | < 0.001 |
| AT METs | 3.43 (0.46) | 3.37 (0.56)* | 3.38 (0.60)* | 0.006 |
| AT VO2/kg, ml/min/kg | 10.88 (2.03) | 10.73 (2.33) | 11.25 (2.41)*,† | < 0.001 |
| AT O2 pulse, ml/min/beat | 8.11 (1.70) | 7.82 (1.96)* | 8.01 (2.04)† | < 0.001 |
| Peak O2 pulse, ml/min/beat | 9.69 (2.31) | 9.27 (2.49)* | 9.38 (2.55)* | < 0.001 |
| Borg score | 16.13 (1.38) | 16.28 (2.34) | 14.95 (5.31)*,† | < 0.001 |
| Weber Grade, No. (%) | < 0.001 | |||
| A | 197 (13.11%) | 162 (10.78%) | 221 (14.70%)§ | |
| B | 574 (38.19%) | 579 (38.52%) | 599 (39.85%)‡ | |
| C | 676 (44.98%) | 630 (41.92%)‡ | 596 (39.65%) | |
| D | 56 (3.73%) | 132 (8.78%)‡ | 87 (5.79%)‡,§ |
Bold value indicates a statistically significant difference.
A p-values of the relationship trends of the three groups of variables are also given in the table.
Symbols denote significant differences from the pre-pandemic group (*P <.05; and ‡P <.0167), during-pandemic group (†P <.05 and §P <.0167).
Data are mean ± SD, median (interquartile range), or number (%).
Abbreviations: Peak VO2, peak oxygen uptake; Peak VO2/kg, peak oxygen uptake per kilogram; Peak METs, peak Metabolic Equivalent; AT VO2/kg, oxygen uptake per kilogram at anaerobic threshold; AT O2 pulse, Oxygen pulse at anaerobic threshold; Peak O2 pulse, Peak Oxygen pulse.