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Take A Breath: study protocol for a randomized controlled trial of an online group intervention to reduce traumatic stress in parents of children with a life threatening illness or injury



A substantial proportion of parents whose child is diagnosed with a life-threatening illness, experience high levels of distress that can lead to long-term difficulties in mental health, family functioning and child adjustment. This study evaluates the efficacy of an Acceptance Commitment Therapy-based group intervention designed to reduce distress symptoms in these parents. The program is delivered using videoconferencing to overcome factors that prevent participation in traditional face-to-face therapy.


The study is a randomized control trial of the Take A Breath group intervention for parents demonstrating elevated symptoms of acute stress, delivered via videoconferencing in six 90 min group sessions. Participants are the primary caregivers of children aged 0 to 18 years admitted for a life threatening illness or injury to the Oncology, Cardiology, Neurology or Intensive Care Departments of a tertiary pediatric hospital. Parents will be randomized to intervention or waitlist control 4–10 months after their child’s diagnosis. Measures will be collected prior to and immediately post intervention for intervention and waitlist parents to assess program efficacy. Intervention parents will be followed up at 6 months to assess the maintenance of program effects. We predict that intervention parents will show fewer symptoms post intervention than waitlist parents (primary outcomes: traumatic stress, depression, anxiety, stress symptoms), reflecting improvements in the psychological skills addressed in the intervention (mediating factors). It is anticipated that reductions in mental health difficulties for intervention parents will be maintained up to 6 months post-intervention and will be associated with broader improvements in parents’ adjustment, child adjustment and child wellbeing (secondary outcomes).


This study is unique in evaluating a group intervention delivered to parents of children affected by of a diverse range life-threatening illness or injury. Online communication technology is employed to reduce participation barriers. If proven efficacious, this trans-diagnostic approach offers the potential for broad use as part of the suite of psychosocial services provided to families through tertiary pediatric settings.

Trial registration

ACTRN12611000090910. Trial Registration Date: 14/09/2011

Protocol Date/version: September 2015, version M

Study Status: Ongoing

Peer Review reports


Life-threatening medical conditions affect thousands of Australian children and their families every year. Facing the possibility of their child’s death or lasting impairment, while negotiating complex medical processes and making difficult treatment decisions, is an experience that can overwhelm even the most resilient parent [1]. Many parents report enduring symptoms of trauma including intense feelings of fear, anxiety, helplessness, intrusive thoughts and hypervigilance [2]. Post-traumatic stress disorder has been reported for up to 29 % of mothers and up to 18 % of fathers 6–12 months after child diagnosis [36], with a further 46 % of mothers and 28 % of fathers experiencing significant sub-threshold levels of post-traumatic stress symptoms 6 months after their child’s cancer diagnosis [5]. These symptoms limit parents’ ability to manage daily activities and provide the recovering child with an optimal post-hospital environment [7]. This paper presents the study protocol of a randomized control trial (RCT) that seeks to evaluate a group psychological intervention delivered to parents in their homes, via videoconferencing. The intervention aims to improve parent mental health, thereby optimizing the child’s recovery environment.

Parental distress following child diagnosis is normative and potentially adaptive – parents of seriously ill children are generally well functioning individuals placed in extraordinary circumstances. Most adapt with time and the support of family and friends, and distress symptoms subside. However, higher levels of distress reactions in this early phase have been shown to predict later, persistent parent mental health difficulties [5, 8, 9] placing parents and the ill child at high risk of mental health problems [10, 11]. Persistent distress can impair a parent’s ability to respond to the demands of their child’s illness [1214], and result in the utilization of more hospital resources [15]. It is not surprising that the combination of parental trauma and poorer family functioning predicts the longer-term psychological, behavioral and general wellbeing of the ill child [6, 10, 11, 1618], and has been associated with elevated rates of child psychological, social and health difficulties, including weight and eating difficulties, behavioral, social and emotional problems and negative body image [14, 15].

The ‘Take A Breath’ (TAB) group program was developed as an early intervention for parents with persistent symptoms of distress. It was designed to provide parents with the skills to manage the psychological challenges presented by their child’s illness, with the aim of preventing more serious long-term mental health difficulties. Preliminary (non-controlled) outcomes from pilot studies of TAB delivered face-to-face and online have been described elsewhere [19, 20]. Briefly, the program utilizes an Acceptance and Commitment Therapy (ACT) approach [21], including ACT’s key elements of acceptance, mindfulness, values clarification and goal setting. These are logical treatment approaches to manage the intrusive thoughts, avoidance and high levels of emotional arousal which are among the most common distressing symptoms in parents of children with a serious illness or injury [2224]. A group-based approach was selected for its advantages in helping to normalize the challenges faced by parents, the opportunities for providing peer-support and modelling of coping strategies, and the efficiency and cost-effectiveness of group compared to individual treatment. While the targeted participants for the program are parents who are the primary carers of the ill child (predominantly mothers), partners are also encouraged to attend, as they are a key source of support for enacting any changes [23] and may also benefit from the program themselves. The intervention is delivered 4–10 months after child diagnosis, a time when the acute management of the child’s condition has eased and parents are more able to consider their own needs [15].

Research with parents of ill children has found problematic levels of uptake and attendance for group interventions [23]. Barriers to attending face-to-face programs include recurrent illness and/or ongoing disability in the child, time, childcare and financial pressures that have arisen from the child’s illness, and a preference to spend time at home following family separations associated with the child’s hospitalization [2224]. A recent systematic review of family adjustment to childhood cancer [14] highlighted the complex and profound effects of child illness on family life, including the child’s needs taking priority over those of parents and siblings, lack of time for ‘non-essential’ activities, extended periods of family separation during the child’s treatment, and a resulting desire to protect family time. Traditional face-to-face interventions may be difficult for many parents given these multiple demands. The current trial utilizes videoconferencing technology as the method of delivery. This allows parents to take part in the program in the comfort of their own homes and removes burden of additional travel costs, child care needs and limited time.

The use of technology to deliver interventions in the home is a promising alternative to traditional face-to-face delivery [25]. Internet based interventions that also include clinician involvement appear to be more effective [26] and maintain treatment effects for longer periods [27] than self-directed treatments. Videoconferencing is a method of electronic delivery that allows client and clinician to see and hear each other, providing the advantages of real time verbal and nonverbal interactions [28]. One-on-one videoconferencing (a single client and clinician) is comparable with face-to-face interventions in terms of effectiveness, client ratings of the therapeutic relationship, client satisfaction [25, 29] and treatment retention [30] for a variety of psychological conditions [29]. A recent systematic review found videoconferencing psychotherapy has been used in a variety of therapeutic formats, with diverse populations, and was generally associated with good user satisfaction, having similar clinical outcomes to traditional face-to-face psychotherapy [31].

Early data on videoconferencing for group therapy are promising [31]. Studies have reported equivalent outcomes to those found in face-to-face groups for 125 clients with posttraumatic stress disorder [25, 29, 30] and seven clients with traumatic brain injury [28]. King and colleagues [32] found high client acceptability and clinical effectiveness for clients with substance addictions (N = 37). In comparison with face-to-face therapy, videoconferencing groups for veterans with posttraumatic stress disorder (N = 38) showed equal levels of adherence, empathy and rapport, and more favourable ratings of therapist competence in the videoconferencing conditions [33]. Our uncontrolled feasibility study shows that TAB delivered online (N = 13) was associated with significant reductions on three measures of parental psychological symptoms from pre to 6 month follow-up [20].

Aims and hypotheses

Building on promising pilot results, this paper presents the study protocol for an RCT of a group intervention for parents of children with a life threatening illness or injury, delivered using videoconferencing technology. Recruitment and intervention delivery for this trial are underway.

The aim of the trial is to determine the immediate and longer term efficacy of the TAB program in reducing parental distress, including posttraumatic stress symptoms (primary outcomes), in parents of children with life threatening illness or injury. As indicated in Fig. 1, we predict this reduction will arise from improvements in the psychological skills addressed in the intervention (mediating factors), and will be associated with broader improvements in parents’ adjustment (e.g., quality of life; and child adjustment and quality of life; secondary outcomes).

Fig. 1
figure 1

Take a Breath Program Logic Model

Specifically, we hypothesized that compared to waitlist control group, parents who receive the intervention will report the following short term (post intervention) outcomes:

  1. (a)

    Fewer distress symptoms (primary outcome, assessed in terms of traumatic stress, general stress, anxiety and depression symptoms);

  2. (b)

    Greater improvements in the psychological skills directly targeted by the intervention (mediating factors: e.g. improved psychological flexibility; mindfulness; reduced impact of their child’s illness);

  3. (c)

    Improved parent adjustment (e.g., greater quality of life, improved condition management and parent mutuality), and

  4. (d)

    Greater improvements in child adjustment and wellbeing.

We predict these short term benefits will be maintained in the longer term (6 month follow-up). Finally, we predict that within the intervention sample, there will be no differences in outcomes by child’s type of illness or age.


Approval and registration

Ethics approval was granted by the Human Research Ethics Committee of the Royal Children’s Hospital (RCH), Melbourne (HREC 31049). The study is registered with the Australian New Zealand Clinical Trials Registry (ID: ACTRN12611000090910).


This superiority trial employs an RCT methodology in accord with CONSORT guidelines [34]. Parent-reported data are collected via questionnaires administered at four time points: T1 Screening within 4 weeks of the child’s admission/diagnosis to determine eligibility; T2 (Pre Intervention) completed 2 weeks prior to participating in the intervention (4–10 months after the child’s admission/diagnosis); T3 (Post Intervention) completed immediately after the intervention; and T4 follow up six months after completion of the intervention. Data are collected from waitlist and intervention participants at T1, T2 and T3, and from intervention participants only at T4.


Participants are recruited from the Cardiology, Oncology, and Neurology Departments, and the Paediatric Intensive Care Unit (PICU) at the RCH, Melbourne, Australia, a statewide, tertiary paediatric hospital. These departments have been chosen for their high admission rates, the relatively sudden onset of the child’s illness, and the significant threat posed to the child’s development and future functioning. They also provide diverse illness groups that vary in child age at admission and the nature of treatment received.


Participants are parents who are the primary caregiver of children aged 0–18 years. Parents are eligible if 1) their child is admitted for the first time for: cardiac surgery within the first month of life; a new cancer diagnosis; moderate or severe traumatic brain injury or stroke; or admitted to intensive care for more than 48 h, and 2) the parent reports elevated symptoms of acute distress as determined using the cluster cut-off score on the Acute Stress Disorder Scale (ASDS, see Table 1). Parents are required to be aged over 18 years and have sufficient English to participate. Exclusion criteria include pre-existing psychotic disorder, experience of another major trauma (e.g., death of family member) in the 2 months prior to child diagnosis and if the child is considered palliative. If, during the course of participation in the trial, eligible parents meet any of the exclusion criteria (e.g. their child passing away), they will be excluded from further participation. They will also be excluded if they suffer a serious or intolerable adverse event. Parents who voluntarily withdraw from the study will also be excluded.

Table 1 Parent-reported screening and outcome measures

Recruitment and allocation

After consultation with the child’s medical team to determine potential eligibility, parents are approached on the hospital ward (or by phone if already discharged) by a member of the research team, to seek participation. Employing the support of consultants and clinical staff in the recruitment process will assist the research team to recruit as many eligible families as possible that pass through the relevant hospital departments, in order to achieve the adequate enrolment required to reach the target sample size. Written consent is obtained from eligible parents willing to participate, and subsequently are asked to complete the demographics and screening measure (ASDS) within four weeks of their child’s admission (T1). Eligible parents based on the screening measure are then phoned from four months post admission and invited to participate in the trial, with interested parents asked to sign a second written consent form. At this point they are asked to complete pre-intervention assessment measures (T2) and are randomly allocated to intervention or waitlist control group. The randomization list is generated independent of the research team by the hospital’s Clinical Epidemiology and Biostatistics Unit, using a computerized randomization plan generator and the method of randomly permuted blocks. The end result will be two randomly allocated treatment arms divided between four randomization lists, one for each department: Cardiology, Oncology, Neurology and PICU. The allocation sequence will be implemented using sequentially numbered, sealed envelopes, which will be controlled by an independent researcher who is not involved in recruiting families or intervention delivery. This will ensure that project staff are blind to client allocation. This independent researcher will also assign participants to the relevant treatment arm. At the time of completing their pre-intervention assessment, participants are blinded to allocation condition: they all have agreed to the assessments and program participation but are unaware of whether they are allocated to immediate or waitlist intervention.

Strategies will be employed to improve engagement and reduce attrition. These include giving parents keep cups, pens, and note pads with the study logo, to serve as reminders of study participation at home. Regular contact via phone or email with families throughout the trial will also be used to maximise engagement of families in the trial and reduce attrition during follow-up stages.

Intervention delivery

TAB is a six-session ACT-based group program. It comprises five 90 min weekly sessions, with a sixth booster session scheduled three weeks after the fifth session. Parents participate from their home using a group videoconferencing platform on a study-provided tablet computer. Development and a feasibility trial of the online delivery format have been reported elsewhere [20]. Session content and structure were revised on the basis of the feasibility study and are summarized in Table 2. Participants are sent session materials designed to enhance the delivery of an online intervention, including a set of values cards, a session booklet, and a guided mindfulness CD and mp3. The intervention is co-facilitated by two experienced psychologists and mental health clinicians trained in the content and delivery of the program. Parents’ partners are invited to attend with a maximum group size of 8 parents/partners plus two facilitators.

Table 2 Session content and structure for the take a breath program


Participants are sent iPads (16GB with Retina Display Wi-Fi + 3G) via registered mail to be used for the duration of the program. iPads are installed with the online videoconferencing platform Google Hangouts application [35], prepaid 3G data provided to allow for an internet connection, and accompanied by step-by-step user instructions. The GPS tracking function is enabled and the iPads are cased in a cover so the screen can stand on a table in landscape position. Technical checks are conducted over the phone with each participant in the week prior to program commencement, to test webcam and audio clarity and problem solve any issues. Group facilitators and participants share their webcam during sessions, so all screens display the weekly content materials as well as the faces and names of the facilitators and participants.

Facilitator training and program fidelity

Clinicians were trained in ACT with a trauma focus by RW, and were trained in the TAB intervention by MR prior to commencement of the trial. Group sessions are recorded and sections of a recording are reviewed fortnightly in group supervision sessions with RW and MR. The fidelity of program delivery across groups is measured using session monitoring checklists completed by both facilitators at the completion of each session. The checklist records content covered within each session, including any planned and omitted content, and measures group cohesiveness, active participation by group members, distractions and disruptions, quality of environment and physical resources, level of rapport and engagement, timing, technical problems and facilitators’ comfort and fluency with the material. Clinicians listen to a randomly chosen recording and score a fidelity monitoring checklist for one session of the groups where they are not facilitator or co-facilitator.

Waitlist group

Families allocated to the waitlist group will receive standard clinical care within the hospital, including access to nurses, consultants, social workers, psychologists and other allied health clinicians as required. Families within the treatment group will also have access to standard care.


Measures and data collection time-points are summarized in Table 1. The primary outcome of parent mental health is assessed using parent-report measures of posttraumatic stress symptoms, depression, anxiety, and general stress, using the Posttraumatic Stress Disorder Checklist – Specific (PCL-S) [36] and the Depression Anxiety Stress Scale (DASS) [37] respectively. Other measures assess the hypothesized mediating factors addressed by the intervention (e.g. parent valued living, mindfulness, experience of child’s illness). Secondary outcomes of parent adjustment (e.g. quality of life, management of the condition) and child adjustment (e.g. social, emotional and behavior difficulties) and child wellbeing are also assessed. All are assessed at T2-T4, using reliable and validated parent-report measures. Parent demographic factors (e.g. age, gender, income, ethnicity, education) are collected at screening or T2 and intervention parents complete an intervention acceptability measure at T3. Details of the child’s illness (e.g. diagnosis, date of diagnosis, number of visits to the Emergency Department and number of days of admission) are extracted from hospital databases.

Participant flow and estimated sample size

Figure 2 outlines the anticipated participant flow based our previous research experience with this population and the required numbers to obtain sufficient power. In order to detect a clinically meaningful difference between the two treatment arms of 6.0 (SD: 13.9) points on the primary outcome (PCL-S), with significance level of 0.05 and power of 0.80, 86 participants per condition are required at the post intervention time point (T3). Allowing for the attrition indicated in Fig. 2, this requires a total N = 184 recruited and randomized.

Fig. 2
figure 2

Recruitment, assessment & participant flow

Data storage

The source data will be managed using a RedCAP database which will be held at on campus in a secure room on a password protected computer. Hard copy consent forms and questionnaires will be kept separately in a locked compactus on campus. All audio files recorded during intervention delivery will be stored on a password and firewall protected computer in a locked room. In order to maintain security and confidentiality, only members of the research team with approval from the Royal Children’s Hospital Ethics Committee will have access to any of the personal information and data collected from all potential and participating participants, both throughout and after the conclusion of the trial.

Data analysis

Primary analyses will be conducted following the intention-to-treat paradigm with all participants analyzed as allocated, irrespective of attendance. Analyses will use a generalized estimating equations approach to permit use of all available data. Any baseline imbalances that occur despite randomization will be accounted for in multivariable linear and logistic regression modelling. Likely confounders and moderators (e.g. partner participation or not; child’s diagnostic group, illness severity and age; parent and family characteristics) will be explored. Supplementary analyses will include per-protocol analyses and accounting for attendance and retention bias by comparing the sensitivity of conclusions to various strategies for managing or imputing missing data.

Trial management

The project will be coordinated and overseen by a chief investigator team (MR, FM, MM, VA, JN), who will communicate any important protocol deviations to the remaining project investigators, the Royal Children’s Hospital Ethics Committee, the trial registry, and to relevant journals. They will also be responsible for assessing, reporting and managing adverse events throughout the trial. Any serious adverse events will be recorded and reported to the Royal Children’s Hospital Ethics committee within 72 h of occurrence. Any parent who suffers from severe distress within the program, or as a result of the program, will be supported by the team to engage professional mental health services either within the hospital or in the community, as appropriate.

The chief investigator team will meet monthly to discuss study procedures, problems that arise, and monitor the conduct of the trial, and adherence to the protocol. The two most senior members of the chief investigator team (VA and JN) will comprise the data monitoring committee. They will oversee any interim analyses should they be required throughout the trial, and will determine if participant recruitment will be able to be ceased at an earlier stage. This committee, and any analyses they conduct will remain independent and confidential to the remainder of the team.

Strengths and limitations

This study has notable design strengths: inclusion of parents of children across a diverse range of life threatening conditions, who have elevated symptoms of acute stress at the time of recruitment; timing the intervention to avoid the acute period when parents face intense demands around their child’s medical care; a group delivery format that is more cost-efficient than individual therapy and enables normalization of experience and peer support; use of videoconferencing, paired with clinician input to reduce participation barriers and maximize effectiveness; and the first use of an ACT-based approach in this population. CONSORT guidelines [34] have been followed to maximise study validity.

The major design weakness is the use of the waitlist control condition with waitlisted parents offered the program after completing the ‘post’ (T3) assessment. This precludes comparison between intervention and control participants over the longer term (i.e., at 6 month follow-up). While not ideal, this design reflects the realities of ethical research practice with this highly vulnerable group. Our research team has been conducting research with this population for over 5 years, and it is both practically and ethically challenging to undertake repeated assessments of distressed participants over a long time periods without providing any support. High rates of drop-out by non-intervention participants makes the representativeness of the data questionable for those who are retained, and options for imputing missing data are limited by high rates and non-randomness of the losses to follow-up. Our team has collected longitudinal data from a large cohort of parents of children with life-threatening illnesses recruited in the same setting and using similar eligibility criteria, measurement tools, and assessment time points [38]. The large sample size for this observational study (145 parents assessed at the equivalent of the current study’s proposed 6 month follow-up) provides us the opportunity to compare the long term adjustment of intervention families from the current study with a non-intervention normative population.


One in five parents whose child is diagnosed with a life threatening condition experiences enduring and debilitating distress that adversely affects daily functioning and the wellbeing of other family members [14]. Importantly, addressing distress associated with medical illness has become a central tenet of modern health service delivery. For example, in oncology, distress as the 6th vital sign has been endorsed by numerous policy and organisational bodies [1]. As a result, screening for distress has been mandated as a quality standard in the USA, required for hospital accreditation. There are, however, no effective, evidence-based interventions to address distress in patients and families, once identified. If effective, this program will be an important step to addressing this need and will address a serious gap in the provision of evidence-based care within the child healthcare system. Specifically, it has the potential to reduce burden within families, improve the quality of life of parents, the ill child and other children in the family, thereby reducing demand on hospital and community services.

In addition, advances in communication technology, combined with near-universal connectivity of the population to online and mobile devices, is radically changing healthcare delivery. This study will build our understanding of how such technology can be used to provide widespread and cost effective access to expert clinicians delivering specialist psychological interventions. Importantly, the online format reduces established mental health service inequalities for those in rural/remote locations, and addresses the reluctance of struggling parents to leave their ill child in the care of others, in order to obtain needed support. The use of a videoconferencing group platform provides the additional advantage of enabling both parents to participate in the intervention together from home, sharing the experience and learning together. This is a rare opportunity for families engaged in interventions.

A key feature of TAB is the use of a trans-diagnostic therapeutic model (ACT) and its applicability across multiple diagnostic groups. ACT focuses on acceptance of painful emotions and difficult thoughts while continuing to behave in values-consistent ways. This approach may assist parents in managing challenging internal experiences in the midst of an overwhelming and, at times, quite frightening event while still focusing on what matters most in the family and care-giving environment. If its effectiveness is supported in the current trial, this approach has the potential to be implemented as a hospital-wide program.



acceptance and commitment therapy


acute stress disorder scale


depression anxiety stress scale


posttraumatic stress disorder checklist – specific trauma version


pediatric intensive care unit


Royal Children’s Hospital


randomized controlled trial


data collection time points 1 to 4


take a breath


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We would like to thank the social workers and medical staff across the cardiology, oncology, PICU, neurology, general medicine, and neo-natal intensive care wards of the Royal Children’s Hospital and the PICU reception staff for their support of this research.

We would also like to thank all staff involved in the running of this research project: Amy Coe, Claire-Marie Heaney, Melissa Dunning, Michelle Tennant and Kate Noone.


This project has not been externally funded by a charity, government or commercial organisation. We acknowledge the internal funding support for this project from the Royal Children’s Hospital Foundation, as well as infrastructure funding from the Victorian Department of Human Services, and further funding support from the Parenting Research Centre. This project underwent a peer review process in order to obtain funding from the Royal Children’s Hospital Foundation. Vicki Anderson is funded by an NHMRC Practitioner Fellowship (607333, 2010–2014), and Maria McCarthy is funded by the Children’s Cancer Centre Foundation. Jan Nicholson is funded by the Australian Communities Foundation through the Transition to Contemporary Parenthood Program (Coronella Sub-Fund). We also acknowledge the support of the Victorian Government’s Operational Infrastructure Support Program. None of the project funders had any involvement in the planning, design or execution of this research or the drafting of the manuscript, and will not have final access to the final dataset. There are no financial relationships or issues to disclose.

Study Status: Ongoing.

Related Articles: No articles related to this research protocol has been published or submitted to any journal.

Availability of data and materials

The data for this study will be made available in the Murdoch Childrens Research Institute Lifecourse data repository. The research team will make the findings publically available at national and international conferences, and in peer-reviewed journal publications.

Authors’ contributions

MR is coordinating the study, contributed to project design, is the clinical supervisor for the project, is a program facilitator, and drafted and revised the paper. FM is coordinating the study, contributed to project design, is a program facilitator and drafted and revised the paper. AD is a program facilitator and drafted and revised the paper. MM contributed to the design of the study, is a program facilitator and drafted and revised the paper. JY is a program facilitator and drafted and revised the paper. VA contributed to the design of the study, obtained funding for the project, is the chief investigator of the larger Take a Breath Project, and revised the paper. KB contributed to the design of the study, and drafted and revised the paper. RW is the senior clinical supervisor for the project, provided intellectual input into the use of ACT in a trauma setting, and revised the paper. JN contributed to the design of the study, and drafted and revised the paper. All authors read and approved the final manuscript.

Competing interests

The authors declare that they have no competing interests. No professional writers will be used to write any manuscripts that arise from this study.

Consent to publish

N/A. Individual clinical data will not be used in this study.

Ethics approval and consent to participate

Ethics approval was granted by the Human Research Ethics Committee of the Royal Children’s Hospital (RCH), Melbourne (HREC 31049), and all procedures will be conducted in accordance with this approved protocol. Written informed consent for participation in the study will be obtained from all participants prior to their involvement.

Ethical approval has been obtained from the Royal Children’s Hospital Human Research Ethics Committee (HREC 31049).

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Correspondence to Meredith Rayner.

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Rayner, M., Muscara, F., Dimovski, A. et al. Take A Breath: study protocol for a randomized controlled trial of an online group intervention to reduce traumatic stress in parents of children with a life threatening illness or injury. BMC Psychiatry 16, 169 (2016).

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  • Parents
  • Pediatric illness
  • Post-traumatic stress
  • Randomized controlled trial
  • Acceptance and commitment therapy
  • Online group intervention