Table 3 Bivariate linear regression analyses
HRV-biofeedback (n=15) | Control (n=12) | |||
|---|---|---|---|---|
Unstandardized B coefficient | p- value | Unstandardized B coefficient | p-value | |
Demographic factors | ||||
Age | 0.07 | 0.35 | <0.01 | 0.89 |
Gender | 1.79 | 0.16 | 0.00 | 1.00 |
Smoking | 0.67 | 0.32 | 0.20 | 0.78 |
Psychometric characteristics | ||||
Craving at baseline | 0.02 | 0.59 | -0.01 | 0.93 |
Craving post-intervention | 0.01 | 0.79 | 0.04 | 0.71 |
Anxiety at baseline | -0.10 | 0.93 | 0.16 | 0.29 |
Anxiety post-intervention | -0.03 | 0.73 | 0.06 | 0.79 |
Depression at baseline | -0.03 | 0.66 | 0.03 | 0.70 |
Depression post-intervention | -0.08 | 0.33 | >0.01 | 0.95 |
Heart rate variability | ||||
CVNN at baseline | -0.65 | 0.17 | -1.07 | 0.16 |
CVNN post-intervention | -0.54 | 0.26 | -0,79 | 0.21 |
HF at baseline | <-0.01 | 0.26 | <-0.01 | 0.41 |
HF post-intervention | <-0.01 | 0.26 | <-0.01 | 0.30 |
LF at baseline | <-0.01 | 0.23 | <-0.01 | 0.22 |
LF post-intervention | 0.00 | 0.79 | <-0.01 | 0.48 |
TP at baseline | 0 | 0.46 | <0.01 | 0.75 |
TP post-intervention | <0.01 | 0.79 | <-0.01 | 0.32 |