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Table 3 Bivariate linear regression analyses

From: Effect of short-term heart rate variability biofeedback on long-term abstinence in alcohol dependent patients – a one-year follow-up

  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
  1. Regression analyses in patients who completed follow-up did not reveal any predictors of abstinence among demographic, psychometric or HRV parameters both in patients who have been treated with HRV-biofeedback and controls. “Craving” refers to the Obsessive Compulsive Drinking Scale score. “Anxiety” and “Depression” refer to scores of subscales Anxiety and Depression from the Symptom Checklist-90
  2. CVNN coefficient of variation of R-R intervals, HF high frequency, LF low frequency, TP total power