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Table 5 Meta-regression analysis showing association between anxiety, distress and depression outcome and density of dosage of interventions

From: Effectiveness of relaxation techniques ‘as an active ingredient of psychological interventions’ to reduce distress, anxiety and depression in adolescents: a systematic review and meta-analysis

Covariate Coefficient Standard error Z-value P
Anxiety
 Intercept − 0.29 0.14 − 2.10 0.04
 Number of sessions 0 0.010 − 0.40 0.69
 Duration of sessions 0 0 − 1.54 0.12
 Duration of programme 0.03 0.03 0.86 0.40
Distress
 Intercept − 0.48 0.24 − 1.98 0.05
 Number of sessions 0.02 0.01 1.61 0.11
 Duration of sessions 0 0 − 1.46 0.14
 Duration of programme − 0.01 0.01 − 0.70 0.49
Depression
 Intercept − 0.015 0.22 − 0.71 0.48
 Number of sessions − 0.01 0.01 − 0.93 0.35
 Duration of sessions 0 0.0 − 0.66 0.51
 Duration of programme 0 0.01 0.27 0.79
  1. Anxiety R2 analog = 44%, Distress R2 analog = 0.47, Depression R2 analog = 0.05