Table 4.
Heart Rate Recovery Distribution in the Pure Cohort
| Age: 30 to 39 (N=1056) | Age: 40 to 49 (N=2967) | Age: 50 to 59 (N=2390) | Age: 60 to 69 (N=1116) | Age 70 to 79 (N=323) | P Value | |
|---|---|---|---|---|---|---|
| Resting HR, bpm | 76.1±12.72 | 74.8±12.41 | 74.6±12.11 | 75.1±12.11,2 | 73.8±11.11 | <0.001 |
| Peak exercise HR, bpm | 182.4±11.45 | 176.4±11.94 | 168.6±12.93 | 159.1±13.72 | 149.4±14.61 | <0.001 |
| Female (%) | 327 (31.0)1 | 990 (33.4)1,2 | 880 (36.8)2 | 509 (45.6)3 | 147 (45.5)3 | <0.001 |
| HR‐lowering drug use (%) | 23 (2.2)1,2 | 54 (1.8)1 | 60 (2.5)1,2 | 43 (3.8)2 | 23 (7.1)3 | <0.001 |
| Mean HR recovery, bpm | 22.9±8.34 | 22.3±8.24 | 21.1±8.03 | 18.4±7.42 | 14.9±7.31 | <0.001 |
| Median HR recovery, bpm | 22 | 22 | 21 | 18 | 14 | |
| Interquartile range, bpm | 17–28 | 17–27 | 16–26 | 13–23 | 10–20 | |
| HR recovery <13 bpm | 87 (8.4)1 | 298 (10.0)1 | 311 (13.0)2 | 240 (21.5)3 | 134 (41.5)4 | <0.001 |
Continuous data are presented as mean±SD; categorical data as number (percentage of sample). Pure cohort created by excluding patients with hypertension, diabetes mellitus, current smoking, obesity (BMI ≥30 kg/m2), and poor cardiorespiratory fitness (functional aerobic capacity <80% age‐sex predicted). Different superscripts indicate a statistically significant difference between groups. Superscript 1 is arbitrarily set at the lowest value for each variable. HR indicates heart rate.