Table 1. Descriptive characteristics of participants.
| Characteristics | Participants (n = 35) |
|---|---|
| Age (SD) | 36.6 (7.2) |
| Race/ethnicity (n, %) | |
| NH White | 20 (57.1) |
| NH Black | 5 (14.3) |
| Hispanic/Latino | 9 (25.7) |
| Missing | 1 (2.9) |
| BMI | 30.6 (5.7) |
| HRV measures (SD) | |
| RMSSDa (ms) | 31.18 (19.19) |
| STD RRb (ms) | 38.04 (16.63) |
| Ln LFc | 6.39 (1.12) |
| Ln HFd | 5.67 (1.47) |
a Root mean square of successive RR interval difference.
b standard deviation of RR intervals.
c natural logarithm transformed values of absolute powers of low frequency bands.
d natural logarithm transformed values of absolute powers of high frequency bands.