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The long-term effectiveness of cognitive behavior therapy for psychosis within a routine psychological therapies service

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The long-term effectiveness of cognitive behavior therapy for psychosis within a routine psychological therapies service. / Peters, Emmanuelle; Crombie, Tessa; Agbedjro, Deborah; Johns, Louise C; Stahl, Daniel; Greenwood, Kathryn; Keen, Nadine; Onwumere, Juliana; Hunter, Elaine; Smith, Laura; Kuipers, Elizabeth.

In: Frontiers in Psychology, Vol. 6, 1658, 29.10.2015.

Research output: Contribution to journalArticle

Harvard

Peters, E, Crombie, T, Agbedjro, D, Johns, LC, Stahl, D, Greenwood, K, Keen, N, Onwumere, J, Hunter, E, Smith, L & Kuipers, E 2015, 'The long-term effectiveness of cognitive behavior therapy for psychosis within a routine psychological therapies service', Frontiers in Psychology, vol. 6, 1658. https://doi.org/10.3389/fpsyg.2015.01658

APA

Peters, E., Crombie, T., Agbedjro, D., Johns, L. C., Stahl, D., Greenwood, K., ... Kuipers, E. (2015). The long-term effectiveness of cognitive behavior therapy for psychosis within a routine psychological therapies service. Frontiers in Psychology, 6, [1658]. https://doi.org/10.3389/fpsyg.2015.01658

Vancouver

Peters E, Crombie T, Agbedjro D, Johns LC, Stahl D, Greenwood K et al. The long-term effectiveness of cognitive behavior therapy for psychosis within a routine psychological therapies service. Frontiers in Psychology. 2015 Oct 29;6. 1658. https://doi.org/10.3389/fpsyg.2015.01658

Author

Peters, Emmanuelle ; Crombie, Tessa ; Agbedjro, Deborah ; Johns, Louise C ; Stahl, Daniel ; Greenwood, Kathryn ; Keen, Nadine ; Onwumere, Juliana ; Hunter, Elaine ; Smith, Laura ; Kuipers, Elizabeth. / The long-term effectiveness of cognitive behavior therapy for psychosis within a routine psychological therapies service. In: Frontiers in Psychology. 2015 ; Vol. 6.

Bibtex Download

@article{9ae30be011964c1db8ecc18e3269f8ab,
title = "The long-term effectiveness of cognitive behavior therapy for psychosis within a routine psychological therapies service",
abstract = "Randomised controlled trials (RCTs) have shown the efficacy of CBTp, however, few studies have considered its long-term effectiveness in routine services. This study reports the outcomes of clients seen in a psychological therapies clinic, set up following positive results obtained from an RCT (Peters et al., 2010). The aims were to evaluate the effectiveness of CBTp, using data from the service's routine assessments for consecutive referrals over a 12 years period, and assess whether gains were maintained at a 6+ months' follow-up. Of the 476 consenting referrals, all clients (N = 358) who received ≥5 therapy sessions were offered an assessment at four time points (baseline, pre-, mid-, and end of therapy) on measures assessing current psychosis symptoms, emotional problems, general well-being and life satisfaction. A sub-set (N = 113) was assessed at a median of 12 months after finishing therapy. Following the waiting list (median of 3 months) clients received individualized, formulation-based CBTp for a median number of 19 sessions from 121 therapists with a range of experience receiving regular supervision. Clients showed no meaningful change on any measure while on the waiting list (Cohen's d <= 0.23). In contrast, highly significant improvements following therapy, all of which were significantly greater than changes during the waiting list, were found on all domains assessed (Cohen's d: 0.44-0.75). All gains were maintained at follow-up (Cohen's d: 0.29-0.82), with little change between end of therapy and follow-up (Cohen's d <= 0.18). Drop-out rate from therapy was low (13{\%}). These results demonstrate the positive and potentially enduring impact of psychological therapy on a range of meaningful outcomes for clients with psychosis. The follow-up assessments were conducted on only a sub-set, which may not generalize to the full sample. Nevertheless this study is the largest of its kind in psychosis, and has important implications for the practice of CBTp in clinical services.",
author = "Emmanuelle Peters and Tessa Crombie and Deborah Agbedjro and Johns, {Louise C} and Daniel Stahl and Kathryn Greenwood and Nadine Keen and Juliana Onwumere and Elaine Hunter and Laura Smith and Elizabeth Kuipers",
year = "2015",
month = "10",
day = "29",
doi = "10.3389/fpsyg.2015.01658",
language = "English",
volume = "6",
journal = "Frontiers in Psychology",
issn = "1664-1078",
publisher = "Frontiers Media S.A.",

}

RIS (suitable for import to EndNote) Download

TY - JOUR

T1 - The long-term effectiveness of cognitive behavior therapy for psychosis within a routine psychological therapies service

AU - Peters, Emmanuelle

AU - Crombie, Tessa

AU - Agbedjro, Deborah

AU - Johns, Louise C

AU - Stahl, Daniel

AU - Greenwood, Kathryn

AU - Keen, Nadine

AU - Onwumere, Juliana

AU - Hunter, Elaine

AU - Smith, Laura

AU - Kuipers, Elizabeth

PY - 2015/10/29

Y1 - 2015/10/29

N2 - Randomised controlled trials (RCTs) have shown the efficacy of CBTp, however, few studies have considered its long-term effectiveness in routine services. This study reports the outcomes of clients seen in a psychological therapies clinic, set up following positive results obtained from an RCT (Peters et al., 2010). The aims were to evaluate the effectiveness of CBTp, using data from the service's routine assessments for consecutive referrals over a 12 years period, and assess whether gains were maintained at a 6+ months' follow-up. Of the 476 consenting referrals, all clients (N = 358) who received ≥5 therapy sessions were offered an assessment at four time points (baseline, pre-, mid-, and end of therapy) on measures assessing current psychosis symptoms, emotional problems, general well-being and life satisfaction. A sub-set (N = 113) was assessed at a median of 12 months after finishing therapy. Following the waiting list (median of 3 months) clients received individualized, formulation-based CBTp for a median number of 19 sessions from 121 therapists with a range of experience receiving regular supervision. Clients showed no meaningful change on any measure while on the waiting list (Cohen's d <= 0.23). In contrast, highly significant improvements following therapy, all of which were significantly greater than changes during the waiting list, were found on all domains assessed (Cohen's d: 0.44-0.75). All gains were maintained at follow-up (Cohen's d: 0.29-0.82), with little change between end of therapy and follow-up (Cohen's d <= 0.18). Drop-out rate from therapy was low (13%). These results demonstrate the positive and potentially enduring impact of psychological therapy on a range of meaningful outcomes for clients with psychosis. The follow-up assessments were conducted on only a sub-set, which may not generalize to the full sample. Nevertheless this study is the largest of its kind in psychosis, and has important implications for the practice of CBTp in clinical services.

AB - Randomised controlled trials (RCTs) have shown the efficacy of CBTp, however, few studies have considered its long-term effectiveness in routine services. This study reports the outcomes of clients seen in a psychological therapies clinic, set up following positive results obtained from an RCT (Peters et al., 2010). The aims were to evaluate the effectiveness of CBTp, using data from the service's routine assessments for consecutive referrals over a 12 years period, and assess whether gains were maintained at a 6+ months' follow-up. Of the 476 consenting referrals, all clients (N = 358) who received ≥5 therapy sessions were offered an assessment at four time points (baseline, pre-, mid-, and end of therapy) on measures assessing current psychosis symptoms, emotional problems, general well-being and life satisfaction. A sub-set (N = 113) was assessed at a median of 12 months after finishing therapy. Following the waiting list (median of 3 months) clients received individualized, formulation-based CBTp for a median number of 19 sessions from 121 therapists with a range of experience receiving regular supervision. Clients showed no meaningful change on any measure while on the waiting list (Cohen's d <= 0.23). In contrast, highly significant improvements following therapy, all of which were significantly greater than changes during the waiting list, were found on all domains assessed (Cohen's d: 0.44-0.75). All gains were maintained at follow-up (Cohen's d: 0.29-0.82), with little change between end of therapy and follow-up (Cohen's d <= 0.18). Drop-out rate from therapy was low (13%). These results demonstrate the positive and potentially enduring impact of psychological therapy on a range of meaningful outcomes for clients with psychosis. The follow-up assessments were conducted on only a sub-set, which may not generalize to the full sample. Nevertheless this study is the largest of its kind in psychosis, and has important implications for the practice of CBTp in clinical services.

U2 - 10.3389/fpsyg.2015.01658

DO - 10.3389/fpsyg.2015.01658

M3 - Article

C2 - 26579041

VL - 6

JO - Frontiers in Psychology

JF - Frontiers in Psychology

SN - 1664-1078

M1 - 1658

ER -

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