Table 1.
Clinical and TWA Parameters (mean ± SD) for the 142 Control Healthy Subjects (77 Males and 65 Females)
| Control Population (142) | Control Males (77) | Control Females (65) | P‐Value | |
|---|---|---|---|---|
| SAP (mmHg) | 108 ± 35 | 112 ± 32 | 104 ± 40 | NS |
| DAP (mmHg) | 68 ± 23 | 72 ± 20 | 66 ± 25 | NS |
| BMI (kg/m2) | 24 ± 5 | 25 ± 3 | 24 ± 7 | NS |
| Age (year) | 39 ± 15 | 37 ± 13 | 40 ± 17 | NS |
| MNN (ms) | 886 ± 139 | 927 ± 144 | 837 ± 116 | <10−4 |
| SDNN (ms) | 24 ± 17 | 27 ± 19 | 22 ± 15 | NS |
| Mean TWA duration (beat) | 58 ± 15 | 52 ± 14 | 65 ± 13 | <10−6 |
| Mean TWA amplitude (μV) | 35 ± 12 | 35 ± 12 | 34 ± 11 | NS |
| Mean TWA product (beat·μV) | 2085 ± 899 | 1913 ± 772 | 2290 ± 998 | NS |
| TWA duration SD (beat) | 9 ± 3 | 10 ± 4 | 9 ± 2 | NS |
| TWA amplitude SD (μV) | 6 ± 4 | 7 ± 4 | 5±3 | NS |
| TWA product SD (beat·μV) | 523 ± 289 | 539 ± 327 | 505 ± 238 | NS |
P‐value refers to statistical comparison between control‐male and control‐female groups. P < 10−4 and P < 10−6, statistical significance (unpaired Student's t‐test with Bonferroni's method).
NS: no significant difference (P ≥ 0.006).