does dialectical behavior therapy have a 75% response rate and 30 to 40% dropout?
“The response rate is approximately 75%, but it has a 30 to 40% drop-out rate and this relates to its biggest limitation.”
a host, a psychiatry resident said on PsychEd: Educational Psychiatry Podcast, 2026-11-01, at 06:19. hear it in context →
the episode: PsychEd Shorts 18: Overview of Psychotherapeutic Techniques (at 06:19). we link the show's own page; we do not re-host audio.
first, the part that holds
dropout is a real and well-documented problem in dialectical behavior therapy: more than one in four people who start it in randomized trials don't finish, and routine-care programs can lose closer to 40%. a figure near 75% also exists in the literature: 77% in one outpatient study, though it covers only the people who finished and were reassessed.
what we found when we went and looked
we found no pooled "response rate" for dialectical behavior therapy anywhere near 75%. the largest single cohort we read (1,423 inpatients with borderline personality disorder) reported a 45% response rate, with 31% unchanged and 11% worse. the 77% figure we did find comes from one uncontrolled outpatient study in berlin. it counts 24 of the 31 completers who had diagnostic data, which is 31% of the 78 people who started. for dropout, a meta-analysis of 40 randomized trials put the weighted mean at 28.0% (95% ci 23.6 to 32.9). an earlier meta-analysis found 27.3%. so 30 to 40% sits at or above the top of the trial range, though it fits some routine-care settings, like the berlin study's roughly 40%.
assertion by assertion
| assertion | verdict | what the record says |
|---|---|---|
| dialectical behavior therapy has a response rate of approximately 75% | overstated | no meta-analysis we read reports a pooled response rate. in the largest cohort (1,423 inpatients, 3-month program), 45% responded by the reliable change index, 31% were unchanged, 11% deteriorated and about 15% reached general-population symptom levels. the closest number to 75% is 77% of 31 completers with data in one uncontrolled outpatient study, which is 24 of 78 starters (31%). response definitions differ across studies, so no single number covers dialectical behavior therapy as a whole. [1][3] |
| dialectical behavior therapy has a dropout rate of 30 to 40% | overstated | a meta-analysis of 40 randomized trials found a weighted mean dropout of 28.0% (95% ci 23.6 to 32.9). an earlier meta-analysis of dialectical behavior therapy for borderline personality disorder found 27.3% from pre- to post-treatment. the speaker's range starts near the upper confidence bound of the trial estimate. it fits some routine-care data: about 40% (31 of 78) left the berlin outpatient study within a year. the inpatient cohort lost a further 10%. [1][2][3] |
| dropout is the biggest limitation of dialectical behavior therapy | unverifiable | no source ranks dialectical behavior therapy's limitations, so 'biggest' is a judgment, not a measured quantity. the trial record also says dropout is not specific to it: the 40-trial meta-analysis found its dropout did not differ significantly from control treatments, and the cochrane review found that borderline-specific psychotherapies as a group did not reduce attrition compared with usual treatment. the cochrane review rates all of dialectical behavior therapy's benefit findings as low-quality evidence, which could count as a limitation too. [2][4] |
both directions
for the speaker: dropout is a recognized weak point: the 40-trial meta-analysis concludes that more than one in four patients drop out in randomized trials. routine care can be worse: the berlin outpatient study lost about 40% of starters in the first year, which matches the top of the speaker's range. a near-75% "good outcome" figure is in the literature (77% no longer meeting borderline criteria at one year), so the number has a real origin even though it covers a narrow group. the cochrane review found dialectical behavior therapy beat usual treatment on borderline severity, self-harm and psychosocial functioning.
against: the largest cohort we found reported 45% response, not 75%. the 77% figure counts only people who finished and were reassessed (31 of 78 starters), so 31% of everyone who started is the fairer denominator. presenting 75% response next to 30 to 40% dropout implies the two describe the same population, but the high figure excludes the dropouts. the pooled trial dropout of 28.0% falls below the speaker's range. dropout in dialectical behavior therapy trials is about the same as in the comparison treatments. the cochrane review rates all its findings as low-quality evidence.
what this cannot say
"response" has no standard definition in this field (reliable change, remission, no longer meeting criteria, symptom thresholds), so a single response rate can't be checked against one pooled number. the speaker may be drawing on a specific study or definition we didn't find. we read abstracts and one full-text article, not every trial in the meta-analyses. the 77% and 45% figures come from uncontrolled cohorts in germany and may not carry over to other settings or other diagnoses. dropout definitions vary between trials, though the meta-analysis found definition did not significantly change the rate.
sources, each one fetched and read
- Effectiveness, response, and dropout of dialectical behavior therapy for borderline personality disorder in an inpatient setting. Behaviour Research and Therapy, 2013;51(8):411-6. PMID 23727659 What we read there: "We studied 1423 consecutively admitted individuals with BPD... The response rate was 45%; 31% remained unchanged, and 11% deteriorated. Approximately 15% showed a symptom level equivalent to that of the general population. A further 10% of participants dropped out." Fetched 2026-11-01 (HTTP 200). https://pubmed.ncbi.nlm.nih.gov/23727659/
- A systematic review and meta-analysis of dropout rates from dialectical behaviour therapy in randomized controlled trials. Cognitive Behaviour Therapy, 2020;49(3):181-196. PMID 31204902 What we read there: 40 randomized trials; "The weighted mean dropout rate was 28.0% (95% CI = 23.6, 32.9)"; dropout did not differ significantly from control interventions; dropout was higher in trials that used telephone coaching and a consultation team. Fetched 2026-11-01 (HTTP 200). https://pubmed.ncbi.nlm.nih.gov/?term=Dixon+Linardon+dropout+dialectical+behaviour+therapy
- Effectiveness of dialectic behavioral therapy in routine outpatient care: the Berlin Borderline Study. Borderline Personality Disorder and Emotion Dysregulation, 2014;1:20. doi:10.1186/2051-6673-1-20 What we read there: "n=78 patients started the study, 47 patients completed one year of treatment." "SCID-II ratings for BPD features were obtained only for n=31 participants at t3. Of those 31 patients, n=24 (77%) did no longer meet DSM-criteria for BPD." Fetched 2026-11-01 (HTTP 200). https://pmc.ncbi.nlm.nih.gov/articles/PMC4579507/
- Psychological therapies for people with borderline personality disorder. Cochrane Database of Systematic Reviews, 2020;5:CD012955. PMID 32368793 What we read there: compared with usual treatment, dialectical behavior therapy reduced borderline severity (SMD -0.60, 3 trials, 149 participants) and self-harm (SMD -0.28, 7 trials, 376 participants); "All findings are based on low-quality evidence"; borderline-specific psychotherapy "did not reduce attrition compared with TAU." Fetched 2026-11-01 (HTTP 200). https://pubmed.ncbi.nlm.nih.gov/32368793/
speakers are described by role, not named. one sentence is quoted under fair use, with attribution and a link to the original at the timestamp; we do not re-host audio or video. nothing on this page is a reason to start, stop or change a medication. if you have the file behind anything marked unverifiable, the research board is where people can answer. adam