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Table 2 Bootstrapped Bias-corrected and Accelerated 95% confidence intervals of B for regression equations regarding change scores of depressive rumination, intrusive thoughts on the breathing focus task and positive rumination

From: The effect of mindfulness-based cognitive therapy on rumination and a task-based measure of intrusive thoughts in patients with bipolar disorder

  B Bias SE p-value BCa 95% CI of B
Lower Upper
Broodings subscale of RRS: RRS_br.T1–RRS_br.T0 = group + intercept
 Constant 1.58 − 0.005 1.32 0.25 − 1.09 4.19
 Group (MBCT + TAU vs TAU) − 2.11 0.005 0.92 0.035 − 3.93 − 0.33
Negative intrusive thoughts on the BFT: BFT.neg.T1–BFT.neg.T0 = group + intercept
 Constant 2.00 0.005 1.00 0.064 0.20 3.98
 Group (MBCT + TAU vs TAU) − 1.47 − 0.003 0.64 0.033 − 2.76 − 0.26
Neutral intrusive thoughts on the BFT: BFT.neutral.T1–BFT.neutral.T0 = group + intercept
 Constant − 2.60 − 0.035 1.17 0.055 − 4.93 − 0.47
 Group (MBCT + TAU vs TAU) 1.93 0.023 0.84 0.047 0.29 3.78
Positive intrusive thoughts on the BFT: BFT.pos.T1–BFT.pos.T0 = group + intercept
 Constant −  0.13 − 0.005 1.32 0.92 − 2.73 2.38
 Group (MBCT + TAU vs TAU) 0.33 0.007 1.01 0.75 − 1.61 2.55
Total intrusive thoughts on the BFT: BFT.total.T1–BFT.total.T0 = group + intercept
 Constant − 0.73 0.023 1.60 0.67 − 3.94 2.52
 Group (MBCT + TAU vs TAU) 0.80 − 0.009 1.17 0.51 − 1.48 3.07
Emotion-focused subscale of RPA: RPA_ER.T1–RPA_ER.T0 = group + intercept
 Constant 0.71 − 0.013 1.44 0.63 − 1.80 3.31
 Group (MBCT + TAU vs TAU) − 0.18 0.009 0.80 0.82 − 1.93 1.56
Self-focused subscale of RPA: RPA_SR.T1–RPA_SR.T0 = group + intercept
 Constant 2.39 0.015 1.45 0.11 − 0.55 5.36
 Group (MBCT + TAU vs TAU) − 1.59 − 0.006 0.94 0.11 − 3.40 0.23
  1. B unstandardized regression coefficient, SE standard error, BCa bias-corrected and accelerated
  2. BFT breathing focus task, RRS ruminative response scale, RPA responses to positive affect, T0 baseline
  3. T1 post-treatment, MBCT mindfulness-based cognitive therapy, TAU treatment as usual