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Dr Catrin Lewis
Research Associate, Division of Psychological Medicine and Clinical Neurosciences
Overview
My research focuses on the development and evaluation of psychological interventions for trauma related disorders. Working within the Intervention Development workstream of the National Centre for Mental Health (NCMH) I have extensive experience of working alongside experts by lived experience to develop novel interventions using mixed method approaches. My PhD involved developing and pilot testing Spring a novel guided internet-based programme for PTSD which is now being implemented in the NHS. I am currently working on the development of similar interventions for Prolonged Grief Disorder, Complex PTSD and a bespoke version of Spring for military veterans. I have conducted several Cochrane reviews and worked for the National Institute for Health and Care Excellence (NICE) to produce Clinical Practice guidelines. I was a member of the International Society for Traumatic Stress Studies (ISTSS) treatment guidelines committee, taking a lead in synthesising the evidence for psychological therapies. I also have an interest in sleep disturbance related to PTSD, and PTSD as a comorbidity of other disorders.
Publication
2025
- Olff, M. et al. 2025. The impact of trauma and how to intervene: a narrative review of psychotraumatology over the past 15 years. European Journal of Psychotraumatology 16(1), article number: 2458406. (10.1080/20008066.2025.2458406)
2024
- Gelezelyte, O., Guogaite, G., Nomeikaite, A., Bisson, J. I., Lewis, C. and Kazlauskas, E. 2024. Efficacy of an internet-based guided trauma-focused intervention in reducing ICD-11 posttraumatic stress disorder symptoms: study protocol of a randomized controlled trial. BMC Psychiatry 24(1) (10.1186/s12888-024-06097-0)
- Nievergelt, C. M. et al. 2024. Genome-wide association analyses identify 95 risk loci and provide insights into the neurobiology of post-traumatic stress disorder. Nature Genetics 56, pp. 792-808. (10.1038/s41588-024-01707-9)
2023
- Astill Wright, L. et al. 2023. Rewind for posttraumatic stress disorder: a randomised controlled trial. Depression and Anxiety 2023, article number: 6279649. (10.1155/2023/6279649)
- Morris, H., Hatzikiriakidis, K., Dwyer, J., Lewis, C., Halfpenny, N., Miller, R. and Skouteris, H. 2023. Early intervention for residential out-of-home care staff using eye movement desensitization and reprocessing (EMDR). Psychological Trauma: Theory, Research, Practice, and Policy 15(Sup 2), pp. S456-S464. (10.1037/tra0001418)
- Bisson, J. et al. 2023. Pragmatic randomised controlled trial of guided self-help versus individual cognitive behavioural therapy with a trauma focus for post-traumatic stress disorder (RAPID). Health Technology Assessment 27, article number: 26. (10.3310/YTQW8336)
- Simon, N. et al. 2023. The acceptability of a guided internet-based trauma-focused self-help programme (Spring) for post-traumatic stress disorder (PTSD). European Journal of Psychotraumatology 14(2), article number: 2212554.
- Bisson, J. I., Kitchiner, N. J., Lewis, C. and Roberts, N. P. 2023. Guided, internet-based interventions for post-traumatic stress disorder. The Lancet Psychiatry 10(8), pp. 577-579. (10.1016/S2215-0366(23)00226-2)
- Lewis, C., Bailey, L., Ariti, C., Kitchiner, N. J., Robertson, N. P., Simon, N. and Bisson, J. I. 2023. Social support as a predictor of outcomes of cognitive behavioral therapy with a trauma focus delivered face-to-face and via guided internet-based self-help. Journal of Traumatic Stress 36(3), pp. 511-523. (10.1002/jts.22947)
2022
- Maihofer, A. X. et al. 2022. Rare copy number variation in posttraumatic stress disorder. Molecular Psychiatry 27, pp. 5062-5069. (10.1038/s41380-022-01776-4)
- Lewis, C. et al. 2022. COVID-19 related posttraumatic stress disorder in adults with lived experience of psychiatric disorder. Depression and Anxiety 39(7), pp. 564-572. (10.1002/da.23262)
- Lewis, C., Zammit, S., Jones, I. and Bisson, J. 2022. Prevalence and correlates of self-stigma in Post-Traumatic Stress Disorder (PTSD). European Journal of Psychotraumatology 13(1), article number: 2087967. (10.1080/20008198.2022.2087967)
- Oakes, D. J., Pearce, H. A., Roberts, C., Gehrman, P. G., Lewis, C., Jones, I. and Lewis, K. J. 2022. Associations between comorbid anxiety and sleep disturbance in people with bipolar disorder: Findings from actigraphy and subjective sleep measures. Journal of Affective Disorders 309, pp. 165-171. (10.1016/j.jad.2022.04.065)
- Morris, H., Hatzikiriakidis, K., Savaglio, M., Dwyer, J., Lewis, C., Miller, R. and Skouteris, H. 2022. Eye movement desensitization and reprocessing for the treatment and early intervention of trauma among first responders: A systematic review. Journal of Traumatic Stress 35(3), pp. 778-790. (10.1002/jts.22792)
- Bisson, J. I. et al. 2022. Guided, internet based, cognitive behavioural therapy for post-traumatic stress disorder: pragmatic, multicentre, randomised controlled non-inferiority trial (RAPID). BMJ 377, article number: e069405. (10.1136/bmj-2021-069405)
- Maihofer, A. X. et al. 2022. Enhancing discovery of genetic variants for PTSD through integration of quantitative phenotypes and trauma exposure information. Biological Psychiatry 91(7), pp. 626-636. (10.1016/j.biopsych.2021.09.020)
- Lewis, K. J. S. et al. 2022. The effect of the COVID-19 pandemic on mental health in individuals with pre-existing mental illness. BJPsych Open 8(2), article number: e59. (10.1192/bjo.2022.25)
- Lewis, C. and Bisson, J. 2022. Managing the risk of post-traumatic stress disorder (PTSD): best practice for prevention, detection and treatment. Acta Psychiatrica Scandinavica 145(2), pp. 113-115.
2021
- Simon, N. et al. 2021. Internet-based psychological therapies: a qualitative study of National Health Service commissioners and managers views. Psychology and Psychotherapy: Theory, Research and Practice 94(4), pp. 994-1014. (10.1111/papt.12341)
- Astill Wright, L. et al. 2021. High prevalence of somatisation in ICD-11 complex PTSD: a cross sectional cohort study. Journal of Psychosomatic Research 148, article number: 110574. (10.1016/j.jpsychores.2021.110574)
- Mullins, N. et al. 2021. Genome-wide association study of more than 40,000 bipolar disorder cases provides new insights into the underlying biology. Nature Genetics 53, pp. 817-829. (10.1038/s41588-021-00857-4)
- Belsher, B. et al. 2021. Advances in repetitive transcranial magnetic stimulation for posttraumatic stress disorder: a systematic review. Journal of Psychiatric Research 138, pp. 598-606. (10.1016/j.jpsychires.2021.05.011)
- Bisson, J. I. et al. 2021. Preventing the onset of Post Traumatic Stress Disorder. Clinical Psychology Review 81, article number: 102004. (10.1016/j.cpr.2021.102004)
- Simon, N., Robertson, L., Lewis, C., Roberts, N. P., Bethell, A., Dawson, S. and Bisson, J. I. 2021. Internet-based cognitive and behavioural therapies for post-traumatic stress disorder (PTSD) in adults. Cochrane Library 2021(5), article number: CD011710. (10.1002/14651858.CD011710.pub3)
- Astill Wright, L. et al. 2021. The REconsolidaTion Using RewiNd Study (RETURN): trial protocol. European Journal of Psychotraumatology 12(1), article number: 1844439. (10.1080/20008198.2020.1844439)
- Roberts, N. P., Kitchiner, N. J., Lewis, C. E., Downes, A. J. and Bisson, J. I. 2021. Psychometric properties of the PTSD Checklist for DSM-5 in a sample of trauma exposed mental health service users. European Journal of Psychotraumatology 12(1), article number: 1863578. (10.1080/20008198.2020.1863578)
- Hoskins, M. D. et al. 2021. Pharmacological therapy for post-traumatic stress disorder: a systematic review and meta-analysis of monotherapy, augmentation and head-to-head approaches. European Journal of Psychotraumatology 12(1), article number: 1802920. (10.1080/20008198.2020.1802920)
- Hoskins, M. D. et al. 2021. Pharmacological-assisted psychotherapy for post-traumatic stress disorder: a systematic review and meta-analysis. European Journal of Psychotraumatology 12(1), article number: 1853379. (10.1080/20008198.2020.1853379)
2020
- Bisson, J. I., van Gelderen, M., Roberts, N. P. and Lewis, C. 2020. Non-pharmacological and non-psychological approaches to the treatment of PTSD: results of a systematic review and meta-analyses. European Journal of Psychotraumatology 11(1), article number: 1795361. (10.1080/20008198.2020.1795361)
- Lewis, C., Lewis, K., Kitchiner, N., Isaac, S., Jones, I. and Bisson, J. I. 2020. Sleep disturbance in post-traumatic stress disorder (PTSD): a systematic review and meta-analysis of actigraphy studies. European Journal of Psychotraumatology 11(1), article number: 1767349. (10.1080/20008198.2020.1767349)
- Barawi, K. S., Lewis, C., Simon, N. and Bisson, J. 2020. A systematic review of factors associated with outcome of psychological treatments for post-traumatic stress disorder. European Journal of Psychotraumatology 11(1), article number: 1774240. (10.1080/20008198.2020.1774240)
- Lewis, C., Roberts, N., Andrew, M., Starling, E. and Bisson, J. 2020. Psychological therapies for post-traumatic stress disorder in adults: systematic review and meta-analysis. European Journal of Psychotraumatology 11(1), article number: 1729633. (10.1080/20008198.2020.1729633)
- Lewis, C., Roberts, N., Gibson, S. and Bisson, J. 2020. Dropout from psychological therapies for post-traumatic stress disorder (PTSD) in adults: systematic review and meta-analysis. European Journal of Psychotraumatology 11(1), article number: 1709709. (10.1080/20008198.2019.1709709)
2019
- Roberts, N. P., Kitchiner, N. J., Kenardy, J., Lewis, C. E. and Bisson, J. I. 2019. Early psychological intervention following recent trauma: A systematic review and meta-analysis. European Journal of Psychotraumatology Supplement 10(1), article number: 1695486. (10.1080/20008198.2019.1695486)
- Lewis, C., Roberts, N., Simon, N., Bethell, A. and Bisson, J. 2019. Internet-based cognitive behavioural therapy for post-traumatic stress disorder: systematic review and meta- analysis. Acta Psychiatrica Scandinavica 140(6), pp. 508-521. (10.1111/acps.13079)
- Brydges, N. M. et al. 2019. Childhood stress impairs social function through AVP-dependent mechanisms. Translational Psychiatry 9(1), article number: 330. (10.1038/s41398-019-0678-0)
- Astil Wright, L., Sijbrandij, M., Sinnerton, R., Lewis, C., Roberts, N. and Bisson, J. 2019. Pharmacological prevention and early treatment of post-traumatic stress disorder and acute stress disorder: a systematic review and meta-analysis. Translational Psychiatry 9, article number: 334. (10.1038/s41398-019-0673-5)
- Kitchiner, N. J., Lewis, C., Roberts, N. P. and Bisson, J. I. 2019. Active duty and ex-serving military personnel with post-traumatic stress disorder treated with psychological therapies: systematic review and meta-analysis. European Journal of Psychotraumatology 10(1), article number: 1684226. (10.1080/20008198.2019.1684226)
- Underwood, J., Kendall, K., Berrett, J., Lewis, C., Anney, R., Van den Bree, M. and Hall, J. 2019. Autism spectrum disorder diagnosis in adults: phenotype and genotype findings from a clinically derived cohort. British Journal of Psychiatry 215(5), pp. 647-653. (10.1192/bjp.2019.30)
- Nievergelt, C. M. et al. 2019. International meta-analysis of PTSD genome-wide association studies identifies sex- and ancestry-specific genetic risk loci. Nature Communications 10, article number: 4558. (10.1038/s41467-019-12576-w)
- Simon, N., McGillivray, L., Roberts, N., Barawi, K., Lewis, C. and Bisson, J. 2019. Acceptability of internet-based cognitive behavioural therapy (i-CBT) for post-traumatic stress disorder (PTSD): a systematic review. European Journal of Psychotraumatology 10(1), article number: 1646092. (10.1080/20008198.2019.1646092)
- Bisson, J. et al. 2019. The international society for traumatic stress studies new guidelines for the prevention and treatment of Posttraumatic Stress Disorder: methodology and development process. Journal of Traumatic Stress 32(4), pp. 475-483. (10.1002/jts.22421)
- Simon, N., Roberts, N. P., Lewis, C. E., van Gelderen, M. J. and Bisson, J. I. 2019. Associations between perceived social support, post-traumatic stress disorder (PTSD), and complex PTSD (CPTSD): implications for treatment. European Journal of Psychotraumatology 10(1), article number: 1573129. (10.1080/20008198.2019.1573129)
2018
- Nollett, C. et al. 2018. Pragmatic RAndomised controlled trial of a trauma-focused guided self-help Programme versus InDividual trauma-focused cognitive Behavioural therapy for post-traumatic stress disorder (RAPID): trial protocol. BMC Psychiatry 18(1), article number: 77. (10.1186/s12888-018-1665-3)
- Zammit, S. et al. 2018. Undetected post-traumatic stress disorder in secondary-care mental health services: systematic review. British Journal of Psychiatry 212(1), pp. 11-18. (10.1192/bjp.2017.8)
2017
- Lewis, C., Farewell, D., Groves, V., Kitchiner, N. J., Roberts, N., Vick, T. and Bisson, J. 2017. Internet-based guided self-help for post-traumatic stress disorder (PTSD): randomised controlled trial. Depression and Anxiety 34(6), pp. 555-565. (10.1002/da.22645)
- Lewis, C., Raisanen, L., Bisson, J. I., Jones, I. R. and Zammit, S. 2017. Trauma exposure and undetected Post-Traumatic Stress Disorder (PTSD) among adults with a mental disorder. Depression and Anxiety 35(2), pp. 178-184. (10.1002/da.22707)
2016
- Nishi, D. et al. 2016. Adverse childhood experiences, support, and the perception of ability to work in adults with disability. PLoS ONE 11(7), article number: e0157726. (10.1371/journal.pone.0157726)
2015
- Bisson, J. I., Cosgrove, S., Lewis, C. and Roberts, N. P. 2015. Post-traumatic stress disorder. BMJ 351, article number: h6161. (10.1136/bmj.h6161)
- Maier, R. et al. 2015. Joint analysis of psychiatric disorders increases accuracy of risk prediction for schizophrenia, bipolar disorder, and major depressive disorder. American Journal of Human Genetics 96(2), pp. 283-294. (10.1016/j.ajhg.2014.12.006)
2013
- Lewis, C., Roberts, N. P., Vick, T. L. and Bisson, J. I. 2013. Development of a guided self-help (GSH) program for the treatment of mild-to-moderate posttraumatic stress disorder (PTSD). Depression and Anxiety 30(11), pp. 1121-1128. (10.1002/da.22128)
- Bisson, J. I., Roberts, N. P., Andrew, M., Cooper, R. and Lewis, C. 2013. Psychological therapies for chronic post-traumatic stress disorder (PTSD) in adults. Cochrane Database Syst Rev. 2013 (10.1002/14651858.CD003388.pub4)
2012
- Lewis, C., Pearce, J. and Bisson, J. I. 2012. Efficacy, cost-effectiveness and acceptability of self-help interventions for anxiety disorders: systematic review. British Journal of Psychiatry 200(1), pp. 15-21. (10.1192/bjp.bp.110.084756)
2011
- Lewis, C. 2011. Phase I development of a guided self help (GSH) programme for the treatment of mild to moderate post traumatic stress disorder (PTSD). PhD Thesis, Cardiff University.
Articles
- Olff, M. et al. 2025. The impact of trauma and how to intervene: a narrative review of psychotraumatology over the past 15 years. European Journal of Psychotraumatology 16(1), article number: 2458406. (10.1080/20008066.2025.2458406)
- Gelezelyte, O., Guogaite, G., Nomeikaite, A., Bisson, J. I., Lewis, C. and Kazlauskas, E. 2024. Efficacy of an internet-based guided trauma-focused intervention in reducing ICD-11 posttraumatic stress disorder symptoms: study protocol of a randomized controlled trial. BMC Psychiatry 24(1) (10.1186/s12888-024-06097-0)
- Nievergelt, C. M. et al. 2024. Genome-wide association analyses identify 95 risk loci and provide insights into the neurobiology of post-traumatic stress disorder. Nature Genetics 56, pp. 792-808. (10.1038/s41588-024-01707-9)
- Astill Wright, L. et al. 2023. Rewind for posttraumatic stress disorder: a randomised controlled trial. Depression and Anxiety 2023, article number: 6279649. (10.1155/2023/6279649)
- Morris, H., Hatzikiriakidis, K., Dwyer, J., Lewis, C., Halfpenny, N., Miller, R. and Skouteris, H. 2023. Early intervention for residential out-of-home care staff using eye movement desensitization and reprocessing (EMDR). Psychological Trauma: Theory, Research, Practice, and Policy 15(Sup 2), pp. S456-S464. (10.1037/tra0001418)
- Bisson, J. et al. 2023. Pragmatic randomised controlled trial of guided self-help versus individual cognitive behavioural therapy with a trauma focus for post-traumatic stress disorder (RAPID). Health Technology Assessment 27, article number: 26. (10.3310/YTQW8336)
- Simon, N. et al. 2023. The acceptability of a guided internet-based trauma-focused self-help programme (Spring) for post-traumatic stress disorder (PTSD). European Journal of Psychotraumatology 14(2), article number: 2212554.
- Bisson, J. I., Kitchiner, N. J., Lewis, C. and Roberts, N. P. 2023. Guided, internet-based interventions for post-traumatic stress disorder. The Lancet Psychiatry 10(8), pp. 577-579. (10.1016/S2215-0366(23)00226-2)
- Lewis, C., Bailey, L., Ariti, C., Kitchiner, N. J., Robertson, N. P., Simon, N. and Bisson, J. I. 2023. Social support as a predictor of outcomes of cognitive behavioral therapy with a trauma focus delivered face-to-face and via guided internet-based self-help. Journal of Traumatic Stress 36(3), pp. 511-523. (10.1002/jts.22947)
- Maihofer, A. X. et al. 2022. Rare copy number variation in posttraumatic stress disorder. Molecular Psychiatry 27, pp. 5062-5069. (10.1038/s41380-022-01776-4)
- Lewis, C. et al. 2022. COVID-19 related posttraumatic stress disorder in adults with lived experience of psychiatric disorder. Depression and Anxiety 39(7), pp. 564-572. (10.1002/da.23262)
- Lewis, C., Zammit, S., Jones, I. and Bisson, J. 2022. Prevalence and correlates of self-stigma in Post-Traumatic Stress Disorder (PTSD). European Journal of Psychotraumatology 13(1), article number: 2087967. (10.1080/20008198.2022.2087967)
- Oakes, D. J., Pearce, H. A., Roberts, C., Gehrman, P. G., Lewis, C., Jones, I. and Lewis, K. J. 2022. Associations between comorbid anxiety and sleep disturbance in people with bipolar disorder: Findings from actigraphy and subjective sleep measures. Journal of Affective Disorders 309, pp. 165-171. (10.1016/j.jad.2022.04.065)
- Morris, H., Hatzikiriakidis, K., Savaglio, M., Dwyer, J., Lewis, C., Miller, R. and Skouteris, H. 2022. Eye movement desensitization and reprocessing for the treatment and early intervention of trauma among first responders: A systematic review. Journal of Traumatic Stress 35(3), pp. 778-790. (10.1002/jts.22792)
- Bisson, J. I. et al. 2022. Guided, internet based, cognitive behavioural therapy for post-traumatic stress disorder: pragmatic, multicentre, randomised controlled non-inferiority trial (RAPID). BMJ 377, article number: e069405. (10.1136/bmj-2021-069405)
- Maihofer, A. X. et al. 2022. Enhancing discovery of genetic variants for PTSD through integration of quantitative phenotypes and trauma exposure information. Biological Psychiatry 91(7), pp. 626-636. (10.1016/j.biopsych.2021.09.020)
- Lewis, K. J. S. et al. 2022. The effect of the COVID-19 pandemic on mental health in individuals with pre-existing mental illness. BJPsych Open 8(2), article number: e59. (10.1192/bjo.2022.25)
- Lewis, C. and Bisson, J. 2022. Managing the risk of post-traumatic stress disorder (PTSD): best practice for prevention, detection and treatment. Acta Psychiatrica Scandinavica 145(2), pp. 113-115.
- Simon, N. et al. 2021. Internet-based psychological therapies: a qualitative study of National Health Service commissioners and managers views. Psychology and Psychotherapy: Theory, Research and Practice 94(4), pp. 994-1014. (10.1111/papt.12341)
- Astill Wright, L. et al. 2021. High prevalence of somatisation in ICD-11 complex PTSD: a cross sectional cohort study. Journal of Psychosomatic Research 148, article number: 110574. (10.1016/j.jpsychores.2021.110574)
- Mullins, N. et al. 2021. Genome-wide association study of more than 40,000 bipolar disorder cases provides new insights into the underlying biology. Nature Genetics 53, pp. 817-829. (10.1038/s41588-021-00857-4)
- Belsher, B. et al. 2021. Advances in repetitive transcranial magnetic stimulation for posttraumatic stress disorder: a systematic review. Journal of Psychiatric Research 138, pp. 598-606. (10.1016/j.jpsychires.2021.05.011)
- Bisson, J. I. et al. 2021. Preventing the onset of Post Traumatic Stress Disorder. Clinical Psychology Review 81, article number: 102004. (10.1016/j.cpr.2021.102004)
- Simon, N., Robertson, L., Lewis, C., Roberts, N. P., Bethell, A., Dawson, S. and Bisson, J. I. 2021. Internet-based cognitive and behavioural therapies for post-traumatic stress disorder (PTSD) in adults. Cochrane Library 2021(5), article number: CD011710. (10.1002/14651858.CD011710.pub3)
- Astill Wright, L. et al. 2021. The REconsolidaTion Using RewiNd Study (RETURN): trial protocol. European Journal of Psychotraumatology 12(1), article number: 1844439. (10.1080/20008198.2020.1844439)
- Roberts, N. P., Kitchiner, N. J., Lewis, C. E., Downes, A. J. and Bisson, J. I. 2021. Psychometric properties of the PTSD Checklist for DSM-5 in a sample of trauma exposed mental health service users. European Journal of Psychotraumatology 12(1), article number: 1863578. (10.1080/20008198.2020.1863578)
- Hoskins, M. D. et al. 2021. Pharmacological therapy for post-traumatic stress disorder: a systematic review and meta-analysis of monotherapy, augmentation and head-to-head approaches. European Journal of Psychotraumatology 12(1), article number: 1802920. (10.1080/20008198.2020.1802920)
- Hoskins, M. D. et al. 2021. Pharmacological-assisted psychotherapy for post-traumatic stress disorder: a systematic review and meta-analysis. European Journal of Psychotraumatology 12(1), article number: 1853379. (10.1080/20008198.2020.1853379)
- Bisson, J. I., van Gelderen, M., Roberts, N. P. and Lewis, C. 2020. Non-pharmacological and non-psychological approaches to the treatment of PTSD: results of a systematic review and meta-analyses. European Journal of Psychotraumatology 11(1), article number: 1795361. (10.1080/20008198.2020.1795361)
- Lewis, C., Lewis, K., Kitchiner, N., Isaac, S., Jones, I. and Bisson, J. I. 2020. Sleep disturbance in post-traumatic stress disorder (PTSD): a systematic review and meta-analysis of actigraphy studies. European Journal of Psychotraumatology 11(1), article number: 1767349. (10.1080/20008198.2020.1767349)
- Barawi, K. S., Lewis, C., Simon, N. and Bisson, J. 2020. A systematic review of factors associated with outcome of psychological treatments for post-traumatic stress disorder. European Journal of Psychotraumatology 11(1), article number: 1774240. (10.1080/20008198.2020.1774240)
- Lewis, C., Roberts, N., Andrew, M., Starling, E. and Bisson, J. 2020. Psychological therapies for post-traumatic stress disorder in adults: systematic review and meta-analysis. European Journal of Psychotraumatology 11(1), article number: 1729633. (10.1080/20008198.2020.1729633)
- Lewis, C., Roberts, N., Gibson, S. and Bisson, J. 2020. Dropout from psychological therapies for post-traumatic stress disorder (PTSD) in adults: systematic review and meta-analysis. European Journal of Psychotraumatology 11(1), article number: 1709709. (10.1080/20008198.2019.1709709)
- Roberts, N. P., Kitchiner, N. J., Kenardy, J., Lewis, C. E. and Bisson, J. I. 2019. Early psychological intervention following recent trauma: A systematic review and meta-analysis. European Journal of Psychotraumatology Supplement 10(1), article number: 1695486. (10.1080/20008198.2019.1695486)
- Lewis, C., Roberts, N., Simon, N., Bethell, A. and Bisson, J. 2019. Internet-based cognitive behavioural therapy for post-traumatic stress disorder: systematic review and meta- analysis. Acta Psychiatrica Scandinavica 140(6), pp. 508-521. (10.1111/acps.13079)
- Brydges, N. M. et al. 2019. Childhood stress impairs social function through AVP-dependent mechanisms. Translational Psychiatry 9(1), article number: 330. (10.1038/s41398-019-0678-0)
- Astil Wright, L., Sijbrandij, M., Sinnerton, R., Lewis, C., Roberts, N. and Bisson, J. 2019. Pharmacological prevention and early treatment of post-traumatic stress disorder and acute stress disorder: a systematic review and meta-analysis. Translational Psychiatry 9, article number: 334. (10.1038/s41398-019-0673-5)
- Kitchiner, N. J., Lewis, C., Roberts, N. P. and Bisson, J. I. 2019. Active duty and ex-serving military personnel with post-traumatic stress disorder treated with psychological therapies: systematic review and meta-analysis. European Journal of Psychotraumatology 10(1), article number: 1684226. (10.1080/20008198.2019.1684226)
- Underwood, J., Kendall, K., Berrett, J., Lewis, C., Anney, R., Van den Bree, M. and Hall, J. 2019. Autism spectrum disorder diagnosis in adults: phenotype and genotype findings from a clinically derived cohort. British Journal of Psychiatry 215(5), pp. 647-653. (10.1192/bjp.2019.30)
- Nievergelt, C. M. et al. 2019. International meta-analysis of PTSD genome-wide association studies identifies sex- and ancestry-specific genetic risk loci. Nature Communications 10, article number: 4558. (10.1038/s41467-019-12576-w)
- Simon, N., McGillivray, L., Roberts, N., Barawi, K., Lewis, C. and Bisson, J. 2019. Acceptability of internet-based cognitive behavioural therapy (i-CBT) for post-traumatic stress disorder (PTSD): a systematic review. European Journal of Psychotraumatology 10(1), article number: 1646092. (10.1080/20008198.2019.1646092)
- Bisson, J. et al. 2019. The international society for traumatic stress studies new guidelines for the prevention and treatment of Posttraumatic Stress Disorder: methodology and development process. Journal of Traumatic Stress 32(4), pp. 475-483. (10.1002/jts.22421)
- Simon, N., Roberts, N. P., Lewis, C. E., van Gelderen, M. J. and Bisson, J. I. 2019. Associations between perceived social support, post-traumatic stress disorder (PTSD), and complex PTSD (CPTSD): implications for treatment. European Journal of Psychotraumatology 10(1), article number: 1573129. (10.1080/20008198.2019.1573129)
- Nollett, C. et al. 2018. Pragmatic RAndomised controlled trial of a trauma-focused guided self-help Programme versus InDividual trauma-focused cognitive Behavioural therapy for post-traumatic stress disorder (RAPID): trial protocol. BMC Psychiatry 18(1), article number: 77. (10.1186/s12888-018-1665-3)
- Zammit, S. et al. 2018. Undetected post-traumatic stress disorder in secondary-care mental health services: systematic review. British Journal of Psychiatry 212(1), pp. 11-18. (10.1192/bjp.2017.8)
- Lewis, C., Farewell, D., Groves, V., Kitchiner, N. J., Roberts, N., Vick, T. and Bisson, J. 2017. Internet-based guided self-help for post-traumatic stress disorder (PTSD): randomised controlled trial. Depression and Anxiety 34(6), pp. 555-565. (10.1002/da.22645)
- Lewis, C., Raisanen, L., Bisson, J. I., Jones, I. R. and Zammit, S. 2017. Trauma exposure and undetected Post-Traumatic Stress Disorder (PTSD) among adults with a mental disorder. Depression and Anxiety 35(2), pp. 178-184. (10.1002/da.22707)
- Nishi, D. et al. 2016. Adverse childhood experiences, support, and the perception of ability to work in adults with disability. PLoS ONE 11(7), article number: e0157726. (10.1371/journal.pone.0157726)
- Bisson, J. I., Cosgrove, S., Lewis, C. and Roberts, N. P. 2015. Post-traumatic stress disorder. BMJ 351, article number: h6161. (10.1136/bmj.h6161)
- Maier, R. et al. 2015. Joint analysis of psychiatric disorders increases accuracy of risk prediction for schizophrenia, bipolar disorder, and major depressive disorder. American Journal of Human Genetics 96(2), pp. 283-294. (10.1016/j.ajhg.2014.12.006)
- Lewis, C., Roberts, N. P., Vick, T. L. and Bisson, J. I. 2013. Development of a guided self-help (GSH) program for the treatment of mild-to-moderate posttraumatic stress disorder (PTSD). Depression and Anxiety 30(11), pp. 1121-1128. (10.1002/da.22128)
- Bisson, J. I., Roberts, N. P., Andrew, M., Cooper, R. and Lewis, C. 2013. Psychological therapies for chronic post-traumatic stress disorder (PTSD) in adults. Cochrane Database Syst Rev. 2013 (10.1002/14651858.CD003388.pub4)
- Lewis, C., Pearce, J. and Bisson, J. I. 2012. Efficacy, cost-effectiveness and acceptability of self-help interventions for anxiety disorders: systematic review. British Journal of Psychiatry 200(1), pp. 15-21. (10.1192/bjp.bp.110.084756)
Thesis
- Lewis, C. 2011. Phase I development of a guided self help (GSH) programme for the treatment of mild to moderate post traumatic stress disorder (PTSD). PhD Thesis, Cardiff University.
Contact Details
LewisCE7@cardiff.ac.uk
+44 29206 88357
Hadyn Ellis Building, Room 2.26, Maindy Road, Cardiff, CF24 4HQ
+44 29206 88357
Hadyn Ellis Building, Room 2.26, Maindy Road, Cardiff, CF24 4HQ
Research themes
Specialisms
- Post Traumatic Stress Disorder (PTSD)
- Psychological Therapy
- Intervention Development
- clinical trials
