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Dive into the research topics where Heather A. O'Mahen is active.

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Featured researches published by Heather A. O'Mahen.


Journal of Womens Health | 2008

Preferences and Perceived Barriers to Treatment for Depression during the Perinatal Period

Heather A. O'Mahen; Heather A. Flynn

BACKGROUND AND METHODS Little is understood about why few women during the perinatal period will use depression treatment. In particular, beliefs and barriers related to depression treatment use have not been studied. In this study, African American and white pregnant women (n = 108) who screened > or =10 on the Edinburgh Postnatal Depression Scale (EPDS) were asked about recent formal and informal treatment use in prenatal care settings. Confidence in the helpfulness of treatment, providers, and settings and perceived barriers to treatment were assessed and compared between African American and white women. RESULTS Pregnant women overall reported low rates of formal treatment use but frequently sought help from informal sources, such as friends, family, and printed materials. All women expressed greatest confidence in psychosocial treatments and lowest confidence in antidepressants. African American women reported less confidence in advice from family and friends and in antidepressants than did white women. Women expressed greatest confidence in treatments delivered by mental health professionals and religious leaders. African American women sought help more frequently and had significantly more confidence in religious leaders as treatment deliverers than white women. Women had greatest confidence in treatments delivered in professional and home settings, with African American women expressing greater confidence in religious settings than white women. All women reported greatest concern with structural barriers, compared with attitudinal and knowledge barriers. CONCLUSIONS Understanding patterns of treatment use, beliefs, and barriers to depression treatment provides important information for tailoring and improving appropriate use of mental health treatment in women during the perinatal period.


The Lancet | 2016

Cost and Outcome of Behavioural Activation versus Cognitive Behavioural Therapy for Depression (COBRA): a randomised, controlled, non-inferiority trial

David Richards; David Ekers; Dean McMillan; Rod S. Taylor; Sarah Byford; Fiona C Warren; Barbara Barrett; Paul Farrand; Simon Gilbody; Willem Kuyken; Heather A. O'Mahen; Edward R. Watkins; Kim Wright; Steven D. Hollon; Nigel Reed; Shelley Rhodes; Emily Fletcher; Katie Finning

Summary Background Depression is a common, debilitating, and costly disorder. Many patients request psychological therapy, but the best-evidenced therapy—cognitive behavioural therapy (CBT)—is complex and costly. A simpler therapy—behavioural activation (BA)—might be as effective and cheaper than is CBT. We aimed to establish the clinical efficacy and cost-effectiveness of BA compared with CBT for adults with depression. Methods In this randomised, controlled, non-inferiority trial, we recruited adults aged 18 years or older meeting Diagnostic and Statistical Manual of Mental Disorders IV criteria for major depressive disorder from primary care and psychological therapy services in Devon, Durham, and Leeds (UK). We excluded people who were receiving psychological therapy, were alcohol or drug dependent, were acutely suicidal or had attempted suicide in the previous 2 months, or were cognitively impaired, or who had bipolar disorder or psychosis or psychotic symptoms. We randomly assigned participants (1:1) remotely using computer-generated allocation (minimisation used; stratified by depression severity [Patient Health Questionnaire 9 (PHQ-9) score of <19 vs ≥19], antidepressant use, and recruitment site) to BA from junior mental health workers or CBT from psychological therapists. Randomisation done at the Peninsula Clinical Trials Unit was concealed from investigators. Treatment was given open label, but outcome assessors were masked. The primary outcome was depression symptoms according to the PHQ-9 at 12 months. We analysed all those who were randomly allocated and had complete data (modified intention to treat [mITT]) and also all those who were randomly allocated, had complete data, and received at least eight treatment sessions (per protocol [PP]). We analysed safety in the mITT population. The non-inferiority margin was 1·9 PHQ-9 points. This trial is registered with the ISCRTN registry, number ISRCTN27473954. Findings Between Sept 26, 2012, and April 3, 2014, we randomly allocated 221 (50%) participants to BA and 219 (50%) to CBT. 175 (79%) participants were assessable for the primary outcome in the mITT population in the BA group compared with 189 (86%) in the CBT group, whereas 135 (61%) were assessable in the PP population in the BA group compared with 151 (69%) in the CBT group. BA was non-inferior to CBT (mITT: CBT 8·4 PHQ-9 points [SD 7·5], BA 8·4 PHQ-9 points [7·0], mean difference 0·1 PHQ-9 points [95% CI −1·3 to 1·5], p=0·89; PP: CBT 7·9 PHQ-9 points [7·3]; BA 7·8 [6·5], mean difference 0·0 PHQ-9 points [–1·5 to 1·6], p=0·99). Two (1%) non-trial-related deaths (one [1%] multidrug toxicity in the BA group and one [1%] cancer in the CBT group) and 15 depression-related, but not treatment-related, serious adverse events (three in the BA group and 12 in the CBT group) occurred in three [2%] participants in the BA group (two [1%] patients who overdosed and one [1%] who self-harmed) and eight (4%) participants in the CBT group (seven [4%] who overdosed and one [1%] who self-harmed). Interpretation We found that BA, a simpler psychological treatment than CBT, can be delivered by junior mental health workers with less intensive and costly training, with no lesser effect than CBT. Effective psychological therapy for depression can be delivered without the need for costly and highly trained professionals. Funding National Institute for Health Research.


Psychological Medicine | 2014

Netmums: a phase II randomized controlled trial of a guided Internet behavioural activation treatment for postpartum depression

Heather A. O'Mahen; David Richards; Joanne Woodford; E Wilkinson; Julia McGinley; Rod S. Taylor; Fiona C Warren

Background Despite the high prevalence of postnatal depression (PND), few women seek help. Internet interventions may overcome many of the barriers to PND treatment use. We report a phase II evaluation of a 12-session, modular, guided Internet behavioural activation (BA) treatment modified to address postnatal-specific concerns [Netmums Helping With Depression (NetmumsHWD)]. Method To assess feasibility, we measured recruitment and attrition to the trial and examined telephone session support and treatment adherence. We investigated sociodemographic and psychological predictors of treatment adherence. Effectiveness outcomes were estimated with the Edinburgh Postnatal Depression Scale (EPDS), Generalized Anxiety Disorder-7, Work and Social Adjustment Scale, Postnatal Bonding Questionnaire, and Social Provisions Scale. Results A total of 249 women were recruited via a UK parenting site, Netmums.com. A total of 83 women meeting DSM-IV criteria for major depressive disorder were randomized to NetmumsHWD (n = 41) or treatment-as-usual (TAU; n = 42). Of the 83 women, 71 (86%) completed the EPDS at post-treatment, and 71% (59/83) at the 6-month follow-up. Women completed an average of eight out of 12 telephone support sessions and five out of 12 modules. Working women and those with less support completed fewer modules. There was a large effect size favouring women who received NetmumsHWD on depression, work and social impairment, and anxiety scores at post-treatment compared with women in the TAU group, and a large effect size on depression at 6 months post-treatment. There were small effect sizes for postnatal bonding and perceived social support. Conclusions A supported, modular, Internet BA programme can be feasibly delivered to postpartum women, offering promise to improve depression, anxiety and functioning.


Depression and Anxiety | 2013

A PILOT RANDOMIZED CONTROLLED TRIAL OF COGNITIVE BEHAVIORAL THERAPY FOR PERINATAL DEPRESSION ADAPTED FOR WOMEN WITH LOW INCOMES

Heather A. O'Mahen; Joseph A. Himle; Gina Fedock; Erin J. Henshaw; Heather A. Flynn

Perinatal women with identified depression in prenatal care settings have low rates of engagement and adherence with depression‐specific psychotherapy. We report the feasibility and symptom outcomes of Cognitive Behavioral Therapy (CBT) modified (mCBT) to address the needs of perinatal, low‐income women with Major Depressive Disorder (MDD).


Journal of Personality and Social Psychology | 2000

Running from the shadow: psychological distancing from others to deny characteristics people fear in themselves.

Jeff Schimel; T. Psyszczynski; Jeff Greenberg; Heather A. O'Mahen; Jamie Arndt

Four experiments tested the hypothesis that people distance themselves from others who display characteristics they fear in themselves. In Study 1, participants were given false feedback that they were high or low in repressed anger and were given information about a person who became angry and responded in a violent or nonviolent manner. High anger feedback participants distanced themselves only from the violent person. In Study 2, high anger feedback led to distancing from a violent other but not a dishonest other, whereas dishonesty feedback led to distancing from a dishonest other but not a violent other. The results of Studies 3 and 4 replicated and extended the distancing effect with an anger induction: Participants who were insulted distanced themselves from an angry/violent person, and verbalizing their emotions about being insulted eliminated this effect. Implications for understanding defenses against undesirable self-attributions are discussed.


Journal of Affective Disorders | 2015

The association between childhood maltreatment and emotion regulation: Two different mechanisms contributing to depression?

Heather A. O'Mahen; Anke Karl; Nicholas J. Moberly; Gina Fedock

BACKGROUND Childhood maltreatment is an established distal risk factor for later emotional problems, although research suggests this relationship is mediated by proximal factors. However, it is unclear if different forms of childhood maltreatment are related to unique emotion regulation strategies. In this study, we examined whether avoidance and rumination, two emotion regulation strategies strongly associated with depression, were associated with different forms of childhood maltreatment, and whether these strategies, in turn, mediated the relationship between childhood maltreatment and current depressive symptoms. METHODS Participants were a community sample of pregnant, primarily low-income women, 55 of whom met criteria for Major Depressive Disorder (MDD) and 85 who had elevated levels of depressive symptoms but did not meet criteria for MDD. RESULTS Significant rates of childhood maltreatment were reported. Childhood emotional neglect was related to behavioural avoidance, and childhood emotional abuse was related to rumination. In path analyses, behavioural avoidance mediated the relationship between childhood emotional neglect and depression. Rumination was a partial mediator of childhood emotional abuse and depression. LIMITATIONS The data were correlational in nature, and replication with a larger sample will help validate the model. DISCUSSION In a clinical, community-based sample different types of childhood maltreatment are related to unique emotion regulation strategies. Implications for understanding the developmental antecedents of emotion regulation and depression are discussed.


Qualitative Health Research | 2011

Patient Preferences for Clinician Interactional Style in Treatment of Perinatal Depression

Erin J. Henshaw; Heather A. Flynn; Joseph A. Himle; Heather A. O'Mahen; Jane Forman; Gina Fedock

Most women with depression around the time of childbearing are not treated adequately, or at all. Clinical practice guidelines focus primarily on provision of information rather than on interaction factors. In this study, we explored clinician interactional style characteristics contributing to patient response to perinatal depression referral and treatment. Stratified purposeful sampling resulted in 23 participants selected by pregnancy, socioeconomic, and depression status. Participants completed semistructured interviews exploring their experiences with and preferences for clinician interactional style characteristics in the context of obstetrics-setting referral and delivery of depression treatment. Thematic analysis revealed a central theme related to interactional cues that influence women’s reactions to clinical encounters, summarized by the question, “Can this person help me?” Women evaluated this question in four domains: feeling heard, developing trust in the clinician, perceiving technical competence in the clinician, and feeling that the intervention focus is effectively chosen and communicated. Our results imply that, in addition to informational factors, the way in which clinicians interact with patients about depression might strongly influence patient responses.


Trials | 2014

Cost and outcome of behavioural activation versus cognitive behaviour therapy for depression (COBRA): study protocol for a randomised controlled trial.

Shelley Rhodes; David Richards; David Ekers; Dean McMillan; Sarah Byford; Paul Farrand; Simon Gilbody; Steven D. Hollon; Willem Kuyken; Christopher R. Martell; Heather A. O'Mahen; Emer O'Neill; Nigel Reed; Rod S. Taylor; Edward R. Watkins; Kim Wright

BackgroundCognitive behaviour therapy (CBT) is an effective treatment for depression. However, CBT is a complex therapy that requires highly trained and qualified practitioners, and its scalability is therefore limited by the costs of training and employing sufficient therapists to meet demand. Behavioural activation (BA) is a psychological treatment for depression that may be an effective alternative to CBT and, because it is simpler, might also be delivered by less highly trained and specialised mental health workers.Methods/DesignCOBRA is a two-arm, non-inferiority, patient-level randomised controlled trial, including clinical, economic, and process evaluations comparing CBT delivered by highly trained professional therapists to BA delivered by junior professional or para-professional mental health workers to establish whether the clinical effectiveness of BA is non-inferior to CBT and if BA is cost effective compared to CBT. Four hundred and forty patients with major depressive disorder will be recruited through screening in primary care. We will analyse for non-inferiority in per-protocol and intention-to-treat populations. Our primary outcome will be severity of depression symptoms (Patient Health Questionnaire-9) at 12 months follow-up. Secondary outcomes will be clinically significant change and severity of depression at 18 months, and anxiety (General Anxiety Disorder-7 questionnaire) and health-related quality of life (Short-Form Health Survey-36) at 12 and 18 months. Our economic evaluation will take the United Kingdom National Health Service/Personal Social Services perspective to include costs of the interventions, health and social care services used, plus productivity losses. Cost-effectiveness will explored in terms of quality-adjusted life years using the EuroQol-5D measure of health-related quality of life.DiscussionThe clinical and economic outcomes of this trial will provide the evidence to help policy makers, clinicians and guideline developers decide on the merits of including BA as a first-line treatment of depression.Trial registrationCurrent Controlled Trials ISRCTN27473954


Journal of Nervous and Mental Disease | 2011

Stigma and Depression During Pregnancy: Does Race Matter?

Heather A. O'Mahen; Erin J. Henshaw; Janelle M. Jones; Heather A. Flynn

Rates of depression treatment are low in pregnant women, particularly Black women. Stigma is an important barrier to treatment, but little research has examined how depression stigma differs in Blacks and Whites; a key purpose of this study. Participants were 532 pregnant women recruited in obstetrics settings, who responded to measures of stigma and mood. Black women reported more depression stigma than White women, regardless of their depression status, and were more likely to endorse the view that depression should be kept secret, than White women. In White women, stigma increased as a function of depression status (current, past, never). White womens perceptions of depression stigma were positively correlated with their beliefs about keeping depression secret. Secrecy and depression stigma were uncorrelated in Black women. There are important racial differences in the way depression stigma functions in pregnant women. Implications for engaging women in mental health treatment are discussed.


BMJ Open | 2015

Refractory depression: mechanisms and evaluation of radically open dialectical behaviour therapy (RO-DBT) [REFRAMED]: protocol for randomised trial

Thomas R. Lynch; Ben Whalley; Roelie Hempel; Sarah Byford; Paul Clarke; Sue Clarke; David Kingdon; Heather A. O'Mahen; Ian Russell; James Shearer; M Stanton; M Swales; Alan Watkins; Bob Remington

Introduction Only 30–40% of depressed patients treated with medication achieve full remission. Studies that change medication or augment it by psychotherapy achieve only limited benefits, in part because current treatments are not designed for chronic and complex patients. Previous trials have excluded high-risk patients and those with comorbid personality disorder. Radically Open Dialectical Behaviour Therapy (RO-DBT) is a novel, transdiagnostic treatment for disorders of emotional over-control. The REFRAMED trial aims to evaluate the effectiveness and cost-effectiveness of RO-DBT for patients with treatment-resistant depression. Methods and analysis REFRAMED is a multicentre randomised controlled trial, comparing 7 months of individual and group RO-DBT treatment with treatment as usual (TAU). Our primary outcome measure is depressive symptoms 12 months after randomisation. We shall estimate the cost-effectiveness of RO-DBT by cost per quality-adjusted life year. Causal analyses will explore the mechanisms by which RO-DBT is effective. Ethics and dissemination The National Research Ethics Service (NRES) Committee South Central – Southampton A first granted ethical approval on 20 June 2011, reference number 11/SC/0146. Trial registration number ISRCTN85784627.

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