Table 3.
Percent changes from baseline in physiological and sleep metrics for 6 days postvaccine dose 2 (n=13).
| Metrics | Day 1, mean percent change (SD) | Day 2, mean percent change (SD) | Day 3, mean percent change (SD) | Day 4, mean percent change (SD) | Day 5, mean percent change (SD) | Day 6, mean percent change (SD) |
| Heart rate variability | –9.25 (22.69) | 7.48 (32.44) | –1.30 (19.44) | –5.56 (13.70) | –7.76 (13.12) | 2.19 (30.22) |
| Resting heart rate | 4.20 (9.42) | 0.82 (8.27) | –0.15 (5.15) | 1.37 (6.17) | 4.63 (10.38) | 1.70 (12.83) |
| Respiratory rate | 0.19 (4.10) | 1.07 (6.44) | –0.26 (4.00) | 0.15 (3.22) | –0.54 (3.63) | 0.13 (3.06) |
| Hours of sleep | –2.10 (26.18) | 5.33 (17.71) | 6.06 (23.84) | 9.22 (28.37) | –4.58 (20.45) | 0.49 (12.30) |
| Percent of REMa sleep | 13.79 (45.88) | –8.73 (39.57) | 12.67 (36.41) | 0.64 (37.99) | 6.12 (32.02) | –8.35 (43.06) |
| Percent of deep sleep | 4.00 (25.02) | –1.70 (19.21) | 3.56 (20.31) | –6.01 (22.09) | 3.42 (21.31) | –11.37 (24.40) |
aREM: rapid eye movement.