Table 2.
Percent changes from baseline in physiological and sleep metrics for 6 days postvaccine dose 1 (n=18).
| 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 | –13.44 (13.62) | –3.74 (34.63) | 4.21 (27.23) | –1.32 (30.39) | –4.35 (26.79) | –2.80 (27.46) |
| Resting heart rate | 2.73 (5.50) | –1.10 (6.93) | –2.23 (7.31) | 0.72 (8.80) | 0.26 (8.68) | 2.02 (11.48) |
| Respiratory rate | 0.16 (1.95) | 1.34 (1.98) | –0.23 (2.70) | 0.02 (3.81) | –1.73 (2.56) | –1.04 (2.29) |
| Hours of sleep | –8.41 (22.96) | 5.00 (18.27) | 9.41 (21.60) | 7.74 (17.81) | 3.21 (24.38) | –3.21 (27.54) |
| Percent of REMa sleep | –4.94 (37.65) | –6.53 (30.06) | –5.13 (33.34) | –6.70 (19.62) | –2.70 (31.10) | –16.98 (29.41) |
| Percent of deep sleep | 9.64 (26.30) | 3.08 (23.00) | 4.11 (12.66) | 4.58 (15.28) | –6.05 (19.58) | –2.38 (17.53) |
aREM: rapid eye movement.