6-month follow-up of rates of clinically significant distress and alcohol use problems of surgical patients with interest in psychotherapy (n = 193) and surgical patients without interest in psychotherapy (n = 964).⁺

+<p>McNemar’s test; T1: Preoperative baseline assessment; T2: Postoperative 6 months follow-up; n (%); statistical significance of Bonferroni correction: p<0.0045.</p><p>A case with clinically significant distress was defined as a patient scoring above the cut off score of a given questionnaire (see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0051167#pone-0051167-t001" target="_blank">Table 1</a> for cut off scores of all measures).</p>++<p>Number ranges for the specific variables from 185 to 191 (patients interested in therapy contacts), and from 907 to 943 (patients not interested in therapy contacts) because of missing data.</p>a)<p>BSI: Brief Symptom Inventory; GSI: General severity index;</p>b)<p>WHO-5: World Health Organization 5-item Well-Being Index;</p>c)<p>PHQ-2: Patient Health Questionnaire-4, depression subscale;</p>d)<p>CES-D: Center for Epidemiologic Studies Depression Scale;</p>e)<p>GAD-2: Patient Health Questionnaire-4, anxiety subscale;</p>f)<p>AUDIT: Alcohol Use Disorder Identification Test, AUDIT-C: AUDIT subscore for score for risky alcohol consumption.