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Overlap between child protection services and the youth justice system: protocol for a retrospective population-based cohort study using linked administrative data in Manitoba, Canada
  1. Nathan C Nickel1,
  2. Lorna Turnbull2,
  3. Elizabeth Wall-Wieler3,
  4. Wendy Au1,
  5. Okechukwu Ekuma1,
  6. Leonard MacWilliam1,
  7. Jennifer Emily Enns1,
  8. Janelle Boram Lee1,
  9. Scott McCulloch1,
  10. Charles Burchill1,
  11. Marni Brownell1
  1. 1Department of Community Health Sciences, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
  2. 2Faculty of Law, University of Manitoba, Winnipeg, Manitoba, Canada
  3. 3Department of Pediatrics, Stanford University, Stanford, California, USA
  1. Correspondence to Dr Nathan C Nickel; Nathan_Nickel{at}cpe.umanitoba.ca

Abstract

Introduction Children who have a history of involvement in child protection services (CPS) are over-represented in the youth and adult criminal justice systems. There are significant health and socioeconomic implications for individuals involved in either or both CPS and the justice system. Understanding the ‘overlap’ between these two systems would provide insight into the health and social needs of this population. This protocol describes a research programme on the relationship between the child welfare and the youth justice systems, looking specifically at the population involved in both CPS and the youth justice system. We will examine the characteristics associated with involvement in these systems, justice system trajectories of individuals with a history of CPS involvement and early adult outcomes of children involved in both systems.

Methods and analysis Administrative data sets will be linked at the individual level for three cohorts born 1991, 1994 and 1998 in Manitoba, Canada. Involvement in CPS will be categorised as ‘placed in out-of-home care’, ‘received in-home services, but was not placed in care’ or ‘no involvement’. Involvement in the youth justice system will be examined through contacts with police between ages 12 and 17 that either led to charges or did not proceed. Individual, maternal and neighbourhood characteristics will be examined to identify individuals at greatest risk of involvement in one or both systems.

Ethics and dissemination The study was approved by the University of Manitoba Health Research Ethics Board and permission to access data sets has been granted by all data providers. We also received approval for the study from the First Nations Health and Social Secretariat of Manitoba’s Health Information Research Governance Committee and the Manitoba Metis Federation. Strategies to disseminate study results will include engagement of stakeholders and policymakers through meetings and workshops, scientific publications and presentations, and social media.

  • child protection
  • health policy
  • public health
  • community child health
  • public health
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Strengths and limitations of this study

  • The study uses linked administrative data on child/youth involvement in child protection services and youth criminal justice system for the entire population (>99%) of the Canadian province of Manitoba.

  • Using administrative data minimises the risks for bias due to differential recall, loss to follow-up and/or selection bias which are common threats to survey research in this area.

  • We have integrated knowledge users, including policymakers, representatives from the community, and child and youth advocates, into our research process to strengthen the impact that our study will have on identifying and resolving systemic barriers in child welfare and the youth justice system.

  • Although we plan to adjust our statistical models for variables such as socioeconomic status, residential mobility, urbanicity, mental health comorbidities and family-level characteristics, there is still some potential for unmeasured confounding in this study because of information we do not have access to (including, for example, full histories of parental criminal justice system involvement).

  • We lack data on systemic and structural factors that predispose some children over others to become involved with either and/or both systems—such as systemic racism and ongoing colonial laws and policies.

Introduction

Over the past few decades, there has been much scholarly interest in the association between involvement in child protection services (CPS; eg, placement in out-of-home or foster care, and/or receiving in-home services) and later involvement in the youth criminal justice system. In both Canada and the USA, several studies have reported a sizeable overlap in the population that has been in contact with both CPS and the youth justice system. For example, in a Canadian population-based cohort study, 17% of children and youth placed in care had also been taken into custody, and 41% had a record of charges in the youth justice system with offences including assault and property-related crimes.1 In a US sample of young adults who had previously been in care, 28% reported that they had been arrested and 19% reported spending at least one night in a correctional facility.2 Similar overlaps between CPS and the youth justice system have also been documented in jurisdictions such as Australia and New Zealand.3–7

Several correlates of CPS and youth justice system involvement have been previously identified in the literature. Although males in the USA have higher rates of youth justice system involvement than females, a history of being involved in CPS increased the risk of youth justice system involvement more for females than males.8 Another US study showed that African–American and Hispanic children with a history of being in care were at higher risk of youth justice system involvement after they returned home from care, while for Caucasian children, the risk was lower after they returned home.9 A child’s age at entry into out-of-home care has also been shown to influence justice system outcomes: entering care between the ages of 13 and 18 was a strong predictor for later involvement in the criminal justice system among male youth, but for males first placed in care before the age of 13 (and for females in either age group), there was no relationship with justice system outcomes.10 Previous episodes of maltreatment, such as experiencing neglect or being the victim of physical or sexual abuse, as well as having a history of mental illness, have also been linked to increased risk of incarceration among children and youth in families with previous CPS involvement.9 11

The overlap between CPS and the youth justice system and the variables related to this overlap are of particular troubling in relation to indigenous youth in Canada, given the degree to which this population is over-represented in both systems. In 2016, just over half of children involved in CPS12 and one-third of youth involved in the youth justice system were indigenous,1 despite indigenous children comprising only 7.7% of the total child population in Canada.13 These statistics reflect a multitude of social and economic issues faced by Canadian indigenous families, but key among them is the harm perpetrated by centuries of colonial policies. The residential school system and the ‘Sixties Scoop’ systematically separated indigenous children from their families and communities, cutting them off from their caregivers, their languages and their cultural identities in an effort to assimilate them into a colonial western sociocultural landscape.14–16 The formal inquiry into these practices by the Truth and Reconciliation Commission of Canada (TRCC) has concluded that they constituted a form of cultural genocide,17 and the suffering they inflicted on multiple generations of indigenous peoples continues to this day.16 The same indigenous families devastated by Canada’s residential school system are being separated from their children by CPS policies, and the resulting loss of family and community ties is perpetuating a destructive cycle of socioeconomic disadvantage, which includes low levels of education, high levels of unemployment, poverty, inadequate housing and health disparities.18 There is also evidence that racial discrimination plays a role in the large number of indigenous children in care. Child welfare agencies with higher numbers of indigenous children in their case loads have access to fewer resources,19 20 and receive funding top-ups only at the cost of reduced support for resources like housing and infrastructure. The reallocation of funds from housing, water and sanitation to address shortfalls in CPS places children at higher risk of needing these services in the first place, since poor housing is one of the key factors leading to children being taken into care.21 But even when controlling for poverty-related risk factors, indigenous children are still more likely than non-indigenous children to be taken into care of CPS.22 23

Policymakers, youth advocates and researchers are especially alarmed by the population of young people who are involved in CPS and the youth justice system and about the over-representation of indigenous children and youth in both systems. But while there is a convincing body of evidence linking the child welfare system and the youth justice system, this literature is unable to support meaningful policy change for a number of reasons. Most published studies have small sample sizes and uncertain representation from the general Canadian population,2 and studies focusing specifically on indigenous youth are still lacking. There is no standard definition for ‘youth involvement in the criminal justice system’ and so this measure varies widely across studies.11 There is also strong potential for sampling bias in many previously published studies.2 8 11 24 Our research programme will strive to address these limitations by using whole-population administrative records on healthcare system use, social services use (eg, CPS), education system outcomes and youth justice system involvement to identify and characterise the population involved in both CPS and the youth justice system. Our research programme aims to begin addressing the TRCC’s Calls to Action to reduce the number of indigenous children in care16 and eliminate the over-representation of indigenous youth in custody by reporting the number of children affected and identifying characteristics that put them at risk.

The major advantages of using administrative data for this type of longitudinal research include: access to continuously recorded data, allowing us to examine the effects of policy changes over time without the measurement and loss to follow-up biases often associated with longitudinal surveys25–27; the ability to take individual and family characteristics into account by linking administrative records at these levels28; and in the unique case of Manitoba where an enormous breadth and depth of administrative data are available, the ability to place the research in the context of the social determinants of health and conduct area-level comparisons between specific populations of interest.26 27 A better understanding of the relationships between CPS, the youth justice system, and the health, social and education consequences for individuals who are involved in both systems will inform laws, policies, programmes and practices to better support vulnerable children and youth in Canada and elsewhere.

The four key research objectives, and related hypotheses, of this project are:

  1. To quantify the overlap between involvement in CPS and the youth justice system.

  2. To identify the characteristics associated with involvement in CPS and/or the youth justice system:

    Hypothesis 2a: We hypothesise that the following characteristics will be associated with an increased likelihood for a child becoming involved with CPS, the youth justice system and involvement with both systems: biological sex of the child, lower socioeconomic status of the mother, diagnosed mental disorders in the mother and diagnosed mental disorder in the child (prior to involvement with CPS).

    Hypothesis 2b: We hypothesise that indigenous identity will operate as an effect modifier of these associations (due to ongoing colonial laws and policies, systemic and structural racism, and enduring legacies of practices such as the Sixties Scoop and residential schools).

    Hypothesis 2c: We hypothesise that year of birth will operate as an effect modifier due to the implementation of policies such as the Youth Criminal Justice Act (YCJA).

  3. To examine different trajectories through the youth justice system among children with a history of CPS involvement:

    Hypothesis 3a: We hypothesise that the following characteristics among children with a history of CPS involvement will be associated with increased rates of being charged with a crime: being male, being placed in out-of-home care (vs receiving services from CPS), younger age at first involvement with CPS, having more placements, being placed in group home and child having diagnosed mental disorders.

    Hypothesis 3b: We hypothesise that the following characteristics among children with a history of CPS involvement will be associated with a decreased likelihood of the child having their charge deferred: being placed in out-of-home care (vs receiving services from CPS), group home placement, age at first involvement with CPS and child having diagnosed mental disorders.

    Hypothesis 3c: We hypothesise that the following characteristics will operate as effect modifiers of these relationships: birth year (due to policies such as the YCJA), urbanicity (due to fewer diversion services being available to youth living in rural areas) and indigenous identity.

  4. To examine the early adult health, social, education and justice outcomes of individuals involved in CPS and the youth justice system:

    Hypothesis 4a: We hypothesise that individuals who are involved with both CPS and the youth justice system will have poor physical and mental health outcomes, and poorer social and education outcomes, and greater criminal justice involvement during early adulthood when compared with those children who are involved with only one or neither system.

    Hypothesis 4b: We hypothesise that the following characteristics will operate as effect modifiers of these associations: indigenous identity, birth year and urbanicity.

Methods and analysis

Context

This programme of research uses administrative data from the central Canadian province of Manitoba (population ~1.3 million). Manitoba is generally representative of the broader Canadian population across numerous health and education indicators,29 but has the highest rate of children being taken into care in Canada (and higher than other developed countries), as well as the highest youth incarceration rate in Canada.30 31 Ethics approvals and data access permissions were obtained in April 2017; we began deriving and validating new variables in the administrative data in May 2017, and we expect the planned analyses to be completed by April 2021.

Patient and public involvement

As this programme of research uses routinely collected administrative data to examine cohort characteristics and outcomes, we do not expect to have any direct patient involvement. However, we have sought the input and expertise of knowledge users and stakeholders from the start of the research programme onwards to ensure the findings are relevant for these groups. Our indigenous partners include representatives from the Manitoba First Nations Family Advocate Office, the Manitoba Child and Family Services Standing Committee, the First Nations Health and Social Secretariat’s Health Information Research Governance Committee, the Manitoba Metis Federation, and an advisory group for the programme of research comprising representatives from the aforementioned groups as well as the Assembly of Manitoba Chiefs’ Grandmothers Council, the Winnipeg Police Service, provincial government departments (Manitoba Justice, Manitoba Families, Healthy Child Manitoba), the Manitoba Advocate for Children and Youth, the Manitoba Child and Family Services Authorities, and the Southern Chiefs’ Organization. The advisory group meets with the research team at least once annually to provide guidance and context on the preliminary work, and has begun discussing the research findings as they become available. Representatives from the First Nations Family Advocate Office have generously spent additional time with the study team, including laying the groundwork for a workshop with a youth advisory group, to provide context to the myriad structural and social forces affecting the study cohort; they will work with us to ensure that an indigenous lens is applied to the interpretation of research findings. Our goal in engaging this group of stakeholders is to ensure that their perspectives and experiences are represented in the work and that our findings address the most critical issues in a culturally sensitive way.

Data sources

Administrative data for this programme of research are derived from the Manitoba Population Research Data Repository at the Manitoba Centre for Health Policy, University of Manitoba. The deidentified data sets in the Repository contain health, social, education and justice data on over 99% of the Manitoba population, and are linkable at the individual and familial levels using a scrambled personal identifier. Table 1 lists the data sets that we will use to derive and validate the required variables and complete the planned analyses.

Table 1

Description of data sources

Variables

Child protection services

Children who are ‘in care of CPS’ have been removed from the care of their family of origin because they are believed to be in need of protection under the Child and Family Services Act.32 The Child and Family Services Act defines a child in need of protection as one whose life, health or emotional well-being is endangered. Children may be taken into care for a variety of reasons, including abuse and/or neglect, addiction issues, conflict in their family, disability, parental illness, or death of parent, or they may be voluntarily placed into care by their parents or guardians. The amount of time children spend in care is highly variable—some may only be away from their families for short time, while others may spend many years in care, and still others are never returned to their family of origin. Care may be provided by approved relatives, state-supported foster families or in-group settings. Children in care do not include children who remain with or are returned to a parent or guardian under an order of supervision.

In Manitoba, information on children in care of CPS is collected by the Department of Families, Child and Family Services Division. Table 2 lists the variables we will measure relating to a child’s involvement in CPS. More information on the legal status of out-of-home placement and the reason for admission to out-of-home care is presented in online supplementary table S1.

Table 2

Child protection services variables

Youth criminal justice system

Canadian youth aged 12–17 who become involved in the criminal justice system are charged under the provisions of the Criminal Code.33 Until 2003, youth involvement in the justice system was governed by the Young Offenders Act,34 under which Canada had the highest rates of youth incarceration among Western nations.35 The Young Offenders Act was then replaced by the YCJA,36 which focuses on prevention and accountability. The YCJA encourages the use of corrective measures outside of the formal court system for less serious offences in recognition that young people have different developmental needs and capacities than adults. As implementation of the YCJA evolved over the subsequent years, the case loads of youth courts declined by 26% and the overall rates and severity of youth crimes also decreased. These rates have continued to decline over the decade and a half since the YCJA came into force, and this pattern should be evident in our research: our study population reached the age of 12 at the time the YCJA was introduced. For serious offences, separate youth courts within the formal court system handle charges against youth. A judge determines the appropriate sentence from options different from those stipulated for adults in the Criminal Code, although they may also choose to sentence a young person as an adult when they think it warranted. However, youth cannot be admitted to an adult prison before the age of 18.

In Manitoba, information on criminal justice system involvement is collected through the Prosecution Information Management Network, which contains data on the type of incidents and type of involvement (eg, whether the individual involved was accused of a crime, a victim of a crime or a witness to a crime). For those accused of a crime, involvement is further classified into ‘proceeding’ or ‘not proceeding/undetermined’, and specific charges are grouped into categories (table 3). For details on the specific section of the acts and regulations under which each charge category falls, see online supplementary table S2.

Table 3

Criminal justice system variables

Health, social and education variables

We will link health, social and education variables to CPS and justice system data sets to provide additional context for the ‘overlap’ findings (table 4). The characteristics of CPS and youth justice system-involved children and their families will help us understand the social and economic circumstances in which these individuals lived and provide more details on the factors contributing to their involvement in CPS and in the youth justice system.

Table 4

Health, social and education variables

Cohorts

We will define three birth cohorts (starting in 1991, 1994 and 1998) to examine CPS and youth justice system involvement over time and in different stages of adolescence and early adulthood. The 1991 birth cohort allows us to examine youth justice system involvement, as well as other outcomes in young adulthood (from ages 18 to 24); since Manitoba’s CPS data collection began in 1992, information on very early childhood out-of-home care will not be entirely complete for this cohort. The 1994 and 1998 birth cohorts will have complete information on CPS involvement from birth to age 18. The 1994 and 1998 birth cohorts will also have justice system data available to ages 21 and 18, respectively. Multiple birth cohorts will be analysed separately to identify changes between periods.

As shown in figure 1, we will initially include in each cohort all individuals born in that year who were registered at some point for health insurance. We will then exclude individuals with a Manitoba Health registration error, and those who did not live in Manitoba at some point between ages 12 and 17. After exclusions, each cohort is expected to include between 15 000 and 20 000 individuals.

Figure 1

Birth cohort selection process.

Analysis plan

Objective 1: quantify the overlap between involvement with CPS and the youth justice system

We will first create a set of three dichotomous indicators:

  1. The youth had a criminal charge recorded in the justice system data before their 18th birthday (yes/no).

  2. The index child’s family was involved in CPS, but the child/youth was never placed in out-of-home care prior to having a criminal charge recorded as a youth or young adult (yes/no) (all children in family that received services will be classified as having received services and analyses will account for clustering at the family level).

  3. The child/youth spent at least 1 day in the care of CPS prior to any criminal charge as a youth or young adult (yes/no).

A child with ‘no’ on all four indicators will have had no contact at all with CPS or the youth justice system. We will use these four indicators to construct categorical variables which will summarise each child’s level of involvement with CPS and/or the youth justice system. The six possible categorical variables of interest describing level of involvement are shown in table 5.

Table 5

Categorical indicators for level of involvement with child protection services and/or the youth justice system

Objective 2: identify the characteristics associated with involvement in CPS and/or the youth justice system

We will test whether the following characteristics are associated with an increased likelihood for a child to be involved with CPS, involvement with the youth justice system and involvement with both systems: lower socioeconomic status of the mother, diagnosed mental disorders in the mother, physical health of the mother, diagnosed mental disorder in the child (prior to involvement with CPS) and physical health of the child (prior to CPS involvement). We will first generate descriptive statistics comparing the characteristics of each group and use χ2 tests and t-tests to identify statistically significant differences between them. We will also generate a multivariable multinomial regression model—with the different categories of system involvement as the outcome—to test our hypothesis. Interaction terms with indigenous identity and birth year will be used to test whether these characteristics operate as effect modifiers.

Objective 3: examine different trajectories through the youth justice system among children with a history of CPS involvement

We will examine the different trajectories of children being processed in the youth justice system based on their involvement in CPS. Children will be classified into one of three groups:

  1. Spent at least 1 day in out-of-home care prior to any charge.

  2. Family involved in CPS prior to any charge, but the child is not in out-of-home care.

  3. Family had no contact with CPS.

A child’s status in these three groups will be treated as a time-varying covariate. For example, a child will be able to move from having no contact3 to being involved in CPS2 to out-of-home care.1 The follow-up time for groups 1 and 2 will begin on the date when the child was taken into care and the date when the child’s family first became involved in CPS, respectively. Children from group 4 will be matched 1:5 to children in groups 1 and 2 based on sex, birth date (±3 months) and postal code of residence at the time when the child was taken into care or first became involved in CPS, respectively.

The rate of youth justice system charges will be calculated from the time the child was taken into care (for group 1), the time the child’s family first became involved in CPS (for group 2) or from the date that the child was matched (for group 3). Children will be followed until the day before their 18th birthday, or until they leave the province. Charges will be counted as the number of unique incidents (or unique interactions with the justice system) and as the number of individual charges against the child. For example, a child may have had one interaction with the youth justice system on 1 September 2018, but that interaction resulted in two individual charges—for example, assault and drug possession. We would count this as a single incident and as two charges.

We will use multilevel generalised linear models (GLM) with a log population offset and the appropriate distribution (eg, Poisson, binomial, negative binomial, depending on the data) to calculate the rate of youth justice system charges for each group and to test our stated hypotheses. Involvement in CPS will be treated as a time-varying covariate in the models. A preliminary GLM with two variables—CPS involvement (yes/no) and was placed in care (yes/no)—will be used to test whether charge rates differ between the two groups; multilevel models are used to accommodate repeated measures over time and clustering at the family level. Then, we will construct a multivariable GLM to test whether child and family characteristics—sex, urbanicity, race/ethnicity, maternal age at birth, maternal mental health at birth, and so on—and characteristics of CPS involvement—for example, age at CPS involvement, age when taken into care, placement type or age at match date, are associated with the rate of criminal charges. We will likewise use multilevel GLMs to test whether the following characteristics among children with a history of CPS involvement will be associated with a decreased likelihood for the child to have their charge deferred: being placed in out-of-home care (vs receiving services), age at first involvement with CPS and child having diagnosed mental disorders. Finally, we will use interaction terms to test our effect modification hypotheses.

Objective 4: examine the early adult social, education and justice outcomes of individuals involved in CPS and the youth justice system

Analyses will test whether CPS and/or youth justice system involvement prior to age 18 is associated with educational attainment (ie, high school graduation), receipt of income assistance and criminal justice system involvement as a young adult.18–24 We will use the following time-varying dichotomous indicators to classify children and youth in our cohorts:

  1. The youth had a criminal charge recorded in the justice system data before their 18th birthday (yes/no).

  2. The family of the child/youth was involved in CPS, but the child/youth was not in out-of-home care (yes/no).

  3. The child/youth spent at least 1 day in care of CPS (yes/no).

A child with ‘no’ on all three indicators will have had no contact at all with CPS or the youth justice system. We will use these three time-varying indicators to construct categorical variables which will summarise each child’s level of involvement with CPS and/or the youth justice system from birth to 18 years of age.

We will first generate descriptive statistics comparing the sociodemographic characteristics of the child/youth and their family (neighbourhood income, region, residential mobility, maternal marital status, maternal mental health comorbidities, child health status, and so on—see table 4 for complete list of covariates). We will test whether CPS and/or youth justice system involvement is associated with educational attainment, income assistance receipt and subsequent criminal justice involvement as a young adult. The time-varying indicator variables above will serve as the primary exposure variables in our model. The outcome variables will be high school graduation, receipt of income assistance and criminal justice involvement between ages 18 and 25. We will use GLMs with a logit link to model the association between CPS and youth justice system involvement and the odds of the three aforementioned outcomes. We will adjust for potential confounding variables such as socioeconomic status, residential mobility, urbanicity, mental health comorbidities and family-level characteristics (eg, number of children, maternal age at first birth).

All analyses will be conducted in SAS version 9.4 and significant associations identified using 95% CIs.

Ethics and dissemination

Ethics

Ethics approval was obtained from the University of Manitoba Health Research Ethics Board (No HS20344–H2016:448), and the Manitoba Health Information Privacy Committee (No 2016/2017-49) reviewed the study to ensure individual Manitobans’ privacy will be protected in the analyses. We have also received approval from Manitoba Health and other respective data providers for linking the administrative data in the Repository for this research programme. In order to ensure that our study aligns with ownership, control, access and possession (OCAP) and ownership, control, access and stewardship (OCAS) principles, respectively, we sought and received approval for this research from the First Nations Health and Social Secretariat of Manitoba’s Health Information Research Governance Committee and from the Manitoba Metis Federation.

Dissemination plan

We are implementing an integrated knowledge translation plan to purposefully and effectively disseminate the findings from this programme of research. As discussed earlier, our plan incorporates the expertise of indigenous, government and other knowledge users and stakeholders to ensure the research findings are relevant for these groups. Knowledge mobilisation efforts to indigenous groups include the aforementioned involvement of indigenous representatives on the advisory group and on the research team with the intent to also gain additional perspectives in a workshop with indigenous youth. The Manitoba Centre for Health Policy has a long history of working closely with decision makers in government and has mechanisms in place for regular face-to-face briefings with policymakers and sharing new research findings more broadly with deputy cabinet ministers, policy analysts, service providers and practitioners in multiple sectors by hosting an annual knowledge mobilisation workshop. Through these means, we will ensure that key decision makers have the chance to discuss the new evidence we generate and consider how it could impact current policies and practices in child welfare and the youth justice system.

In addition, we will share our findings using traditional academic dissemination strategies, such as presenting at national and international conferences and writing manuscripts for peer-reviewed journals, as well as strategies for disseminating the results outside of academia, for example, holding a press conference and media release of the results and developing op-eds for The Conversation Canada. To connect with the public, we will prepare user-friendly lay summaries and infographics of our results for dissemination through mailings, on our website and through social media.

Significance and potential impact

Of all the provinces in Canada, Manitoba has the highest rate of children being taken into care and the highest youth incarceration rate. Strategies and efforts to address these alarming statistics and reduce the number of children in Manitoba who come into contact with the child welfare system and the youth justice system require the evidence that will be generated by this programme of research. We are working in partnership with policymakers, service providers and members of the community and have designed our research programme with their needs in mind. Our whole-population approach will generate evidence that is reflective of children’s lived experiences and is not subject to the limitations that often arise from survey research in this area, such as non-response bias and/or lack of generalisability beyond the study sample. By working closely with our partners, we will identify and quantify the social and structural factors that predispose certain children to becoming involved with CPS and the youth justice system. This will position us to generate critical evidence that can be readily used to develop and implement the policy changes that are sorely needed.

Acknowledgments

The authors acknowledge the Manitoba Centre for Health Policy for use of data contained in the Manitoba Population Research Data Repository under project number HIPC 2016/17-49.

References

Footnotes

  • Contributors Led by MB, NCN and LT, all authors were involved in the conception of the research. MB, NCN and LT led the development of the study design and analyses were conducted by WA, LM and OE. All authors, including EWW, JEE, JBL, SM and CB, participated in interpretation of study findings. The manuscript was drafted by NCN, EWW, LT, JEE, JBL and MB, and critically reviewed by all other authors.

  • Funding This research programme is supported by funds from the Manitoba Government Department of Health (Manitoba Health, Seniors and Active Living).

  • Disclaimer The results and conclusions are those of the authors and no official endorsement by the Manitoba Centre for Health Policy, Manitoba Health or other data providers is intended or should be inferred.

  • Competing interests None declared.

  • Patient consent for publication Not required.

  • Provenance and peer review Not commissioned; externally peer reviewed.