FIGURE 2.

Forest plot and risk of bias inherent in the summary effect for somatic symptom severity (post-treatment). g > 0 indicates more favorable outcomes in the intervention group. ABM = attention bias modification; CBT = cognitive-behavioral therapy; cLBP = chronic low back pain; cP = chronic pain; cPP = chronic postoperative pain; cWS = chronic whiplash syndrome; ICF = idiopathic chronic fatigue; PCP = primary care physician; SD = somatoform disorder; TMJD = temporomandibular joint disorder. Study-level biases are weighted according to the meta-analytic weights. One cluster-randomized study was included in this meta-analysis (59). There was a high risk of bias arising from the timing of identification and recruitment of individual participants in relation to timing of randomization in this study (not depicted).