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Table 2 Outpatient, emergency and total treatment costs (EUR) per patient, week 0–19 (trial), week 20–71 (follow-up) and week 0–71 (entire period)

From: Cost-effectiveness of dialectical behaviour therapy vs. enhanced usual care in the treatment of adolescents with self-harm

  Week 0–19 Week 20–71 Week 0–71
DBT-A EUC Mean diff (SE) p DBT-A EUC Mean diff (SE) p DBT-A EUC Mean diff (SE) p
Mean (SD) Mean (SD) Mean (SD) Mean (SD) Mean (SD) Mean (SD)
Outpatient costs 15,850 (5758) 9566 (5782) 6284 (1333) 0.000a 5367 (7079) 9938 (9894) − 4571 (1969) 0.010 21,217 (10,906) 19,504 (14,291) 1713 (2892) 0.555b
Emergency treatment costsa 349 (1726) 3651 (21,644) − 3303 (3476)   541 (2996) 6757 (22,503) − 6215 (3682)   890 (4701) 10,408 (30,440) − 9518 (4803) 0.261
Emergency treatment costs, hospitalizations excluded 24 (73) 90 (187) − 66 (33)   63 (171) 20 (74) 43 (30)   87 (206) 110 (217) − 23 (46) 0.659
Emergency treatment: number of patients and incidents 6 patients (2 inpatients) 10 incidents 10 patients (2 inpatients) 23 incidents    8 patients (1 inpatient) 11 incidents 8 patients (6 inpatients) 10 incidents    11 patients (3 inpatients) 21 incidents 13 patients (8 inpatients) 33 incidents   
Total treatment costs 16,199 (6669) 13,217 (23,006) 2981 (3839) 0.000 5909 (8266) 16,695 (27,042) − 10,787 (4582) 0.007 22,107 (13,358) 29,912 (40,179) − 7805 (6860) 0.508
  1. a Costs of emergency treatment due to self-harm or risk of self-harm, including GP consultations, emergency department visits and hospitalizations
  2. b t test. Other tests of p values of mean difference are tested by Mann–Whitney U