TABLE 1.
Means (SD) of primary study variables.
| Age (years) | 19.51 (1.46) |
| BMI (kg/m2) | 24.10 (4.16) |
| Resting IBI (ms) | 840.39 (131.58) |
| Resting HF-peak (Hz) | 0.232 (0.060) |
| Resting RMSSD (ms) | 54.79 (30.62) |
| Resting lnRMSSD (ln[ms]) | 3.88 (0.479) |
| HF-peakMEAN (Hz) | −0.038 (0.051) |
| HF-peakSD (Hz) | 0.069 (0.041) |
| ReactivityMEAN (ms) | 1.21 (10.38) |
| ReactivitySD (ms) | 12.37 (8.15) |
| lnReactivitySD (ln[ms]) | 2.33 (0.605) |
| InterferenceMEAN (ms) | 130.35 (78.38) |
| InterferenceSD (ms) | 100.00 (53.55) |
BMI, body mass index; IBI, interbeat interval; HF-peak, peak frequency in high-frequency (AR) spectral band of AR time-frequency analysis of IBI time series; RMSSD, root mean square of successive differences in interbeat intervals; HF-peakMEAN, mean of HF-peak reactivity scores; HF-peakSD, SD of HF-peak reactivity scores across socioemotional conditions; ReactivityMEAN, mean of RMSSD reactivity scores; ReactivitySD, SD of RMSSD reactivity scores; lnReactivitySD, natural logarithm of the SD of RMSSD reactivity scores; InterferenceMEAN, mean of Stroop interference scores; InterferenceSD, SD of Stroop interference scores.