Table 2 24-hour ambulatory blood pressure monitoring and Holter analysis for heart rate variability with each visit.
| Without Mask | With Mask | ||
|---|---|---|---|
| 24 hour | SBP, mmHg |
106 (100 – 112) |
106 (101 – 111) |
| DBP, mmHg |
69 (66 – 73) |
70 (67 – 73) | |
| MAP, mmHg |
82 (79 – 86) |
82 (78 – 86) | |
| Heart rate, bpm |
74 (70 – 77) |
72 (68 – 76) | |
| Night | SBP, mmHg |
100 (93 – 107) |
101 (95 – 106) |
| DBP, mmHg |
63 (60 – 67) |
64 (61 – 67) | |
| MAP, mmHg |
76 (73 – 79) |
75 (71 – 79) | |
| Heart rate, bpm |
64 (61 – 67) |
61 (58 – 65) | |
| Day | SBP, mmHg |
110 (104 – 116) |
109 (104 – 114) |
| DBP, mmHg |
73 (69 – 76) |
73 (70 – 76) | |
| MAP, mmHg |
85 (81 – 88) |
85 (81 – 89) | |
| Heart rate, bpm |
79 (74 – 84) |
78 (73 – 82) | |
| Heart rate variability | Data validity, % | 95.9 | 95.0 |
| Average NN interval, ms |
829 (789 – 869) |
850 (805 – 896) | |
| pNN50, % |
15.9 (10.7 – 21.0) |
17.9 (14.2 – 21.6) | |
| RMSSD, ms |
35.1 (29.2 – 41.0) |
37.1 (32.2 – 42.0) | |
| SDNN, ms |
61.2 (54.9 – 67.5) |
65.6* (59.0 – 72.2) | |
| Triangular Index |
12.9 (11.9 – 13.9) |
13.8 (13.0 – 14.5) | |
| LF-power, ms2 |
816 (628 – 1004) |
919* (717 – 1122) | |
| HF-power, ms2 |
460 (325 – 595) |
485 (400 – 569) | |
| LFn, ms |
62.8 (56.7 – 68.9) |
64.5 (60.6 – 68.4) | |
| HFn, ms |
29.2 (25.5 – 32.8) |
30.0 (27.0 – 33.1) | |
| HF/LF ratio |
0.738 (0.507 – 0.970) |
0.680 (0.519 – 0.842) |