Changes to the Healthy Kids Check: will we get it right?

Michael F Daubney, Cate M Cameron and Paul A Scuffham
Med J Aust 2013; 198 (9): 475-477. || doi: 10.5694/mja12.11455
Published online: 20 May 2013

Are we at risk of over-medicalising and under-researching?

In 2011, the Australian Government announced plans to change the voluntary Healthy Kids Check (HKCheck) during 2012–2013,1 by lowering the age of screening to children aged 3 years and incorporating elements of social and emotional wellbeing. The HKCheck will be conducted by general practitioners, practice nurses and Aboriginal health workers, and will cost about $11 million over 5 years.2

The Expert Working Group developing the HKCheck has not made public what the check comprises and what screening will be involved. While the first media release focused on 3-year-olds and “social and emotional development”, the most recent release (March 2013) announced that the expanded HKCheck will be phased in initially in eight Medicare Local areas in 2013, and the target group will be children aged from 3 to 5 years.3

It is not clear from the latest media release if social and emotional development will be included, and whether the HKCheck will identify “at-risk” families (ie, those with risk factors for children with psychological, conduct and behavioural problems) or whether it will identify risk factors for childhood psychiatric disorders. One aim of a population screening program, such as the HKCheck, is to ensure support for children by identifying and referring families to an appropriate health professional for an in-depth assessment and appropriate intervention (if initial primary health screening finds children who potentially would benefit from this).

Conducting population screening raises a number of complex issues. We will discuss the potential health benefits and risks of population social–emotional screening of children 3–4 years of age, and propose options based on currently available evidence. The first 3 years of life are crucial in terms of neurodevelopment — trauma, stress and/or attachment disruption may have adverse effects on brain and psychological development.4 Early adversity is associated with a range of later difficulties in multiple domains in life, including development and psychiatric disorders;4 however, this important topic is beyond the scope of our article.

Screening for mental health in early childhood

Social and emotional wellbeing in early childhood is defined as a “young child’s capacity to experience, regulate and express emotions, form close and secure relationships, and explore the environment and learn . . . these capacities [are] best accomplished within the context of the caregiving environment that includes family, community and cultural expectations . . .”.5 This definition implies that promoting children’s social and emotional wellbeing means alleviating current distress and suffering; enhancing social and emotional competence; establishing and sustaining positive developmental trajectories; and taking a holistic approach rather than concentrating just on the child.

Population screening aims to accurately and inexpensively identify children in need of a more comprehensive social–emotional assessment. Screening instruments used for widespread detection should be brief; easy to administer, score and interpret; of acceptable reliability and validity; and able to provide information that is both developmentally appropriate and clinically useful. Recommended levels for specificity and sensitivity are greater than 80%. There is a need for a balance between identifying a sufficient proportion of “cases” to effectively improve early detection, while minimising false positives.6 Risks of screening include over-medicalising (ie, inter-preting normal and individual variation or transient disturbances as psychopathological conditions); not identifying relationship disturbances; and labelling (with the associated stigma). Finally, screening is potentially very costly.

Currently, there are a number of clinical instruments that examine social and emotional development in 3-year-olds.

While the BITSEA and ASQ-SE were developed as clinical screening tools, they were not designed for large-scale population screening. These instruments may be used in a number of clinical settings, although they are most easily applied where time is not an issue and by those who have in-depth knowledge of child development (eg, staff of child health clinics). The CBCL/1.5-5, the BITSEA and the ASQ-SE need to be purchased and require training to score.

In summary, none of these tools meets all requirements for a brief population screen of children’s social–emotional development.

Is it possible to characterise psycho-pathological conditions in early childhood?

The same clustering of symptoms seen in 3-year-olds also occurs in older children and adolescents, and these symptom clusters are associated with socioemotional impairment, including social problems or a negative impact on the family. Studies using available validated instruments and clinical assessment have found the most prevalent clusters to be anxiety disorders, attention deficit hyperactivity disorder (ADHD), depressive disorder and behavioural difficulties.13 Kowalenko notes a range of prevalence figures of 7%–26%, reflecting the need for caution in interpreting these data and for further research.13 Another population study reported prevalence rates of impairment of 7%–11% (Diagnostic and statistical manual of mental disorders [DSM-IV]) in children entering school.14

Some problem behaviours and symptoms in early childhood are not transient. Typically, research in this area involves measuring internalising (eg, anxiety15) and/or externalising (eg, aggression15) symptoms, or specific symptoms, including attention problems15 and post-traumatic stress disorder.16 In general, studies suggest moderate continuity of symptoms (although most studies are not continued into adolescence), and there can be a change in symptom presentation over time.17 Children who frequently engage in externalising or internalising problem behaviours are at greater risk of a range of negative long-term outcomes, including dropping out of school and incarceration.18,19 A repeated finding is that elevated aggression persists from the age of 3 years to middle childhood. Currently, there is no research showing screening results at 3 years being predictive of specific psychopathological conditions in adulthood.20

Risk factors identified for symptom clusters in 3-year-olds are similar to those in older children.21 For example, there is evidence of long-term implications of early impairment, including that caused by parental mental health problems.4 Relatively few empirical studies have quantified the long-term predictive strength of these risk factors, when measured at, or near, the age of school entry. The moderating and mediating variables (eg, family factors, socioeconomic status) associated with the persistence of difficulties are typically not included in current screening measures.

Potential benefits of screening

Waiting to screen, identify and intervene may leave children “at risk” and miss opportunities for early intervention, prevention and improved trajectories, resulting in loss of both health and future economic benefits.22 Psychosocial problems are increasingly difficult to change or correct at an older age, but a meta-analysis has demonstrated the effectiveness of intervention in early childhood.23 However, similar to older children, younger children generally do not receive interventions because the problems remain undetected.24 From a broader perspective, identifying high-risk or symptomatic young children, and providing accurate prevalence estimates, would enable appropriate funding for the health and educational services necessary to support these children and their families.

Limitations and barriers associated with screening

As well as the previously noted risks, there are challenges in terms of both GPs using screening instruments and parents attending services offered.25 While there is research highlighting some of the short-term and longer-term problems in at-risk groups, developmental psychopathology is complex and it may not be possible to design a screening tool that can accurately identify young children who will develop disorders in the future.

Emotional and behavioural symptoms in young children are a final common pathway produced by multiple possible aetiologies requiring individual treatment planning. It is currently unclear which domains a screening instrument should include.

Evidence-based early intervention programs have often involved economically disadvantaged families. While there are well researched early intervention programs, some programs were shown not to be beneficial and, until further evidence is available, some scepticism remains about the universal application of early intervention programs.5 Is it better to have a population-based approach to treatment that does not need screening, or screening that leads to more targeted interventions? Further research is needed.

Children identified as being in need of more assessment may overwhelm currently available Australian health care resources. Jureidini and Raven note that interventions must be widely and equitably available to those who screen positive and, when targeted to those with “pre-disease”, should effectively reduce the likelihood of developing disorders.26

Provenance: Not commissioned; externally peer reviewed.

  • Michael F Daubney1
  • Cate M Cameron2
  • Paul A Scuffham3

  • School of Medicine, Griffith University – Logan Campus, Brisbane, QLD.



We wish to acknowledge Dr James Scott for his assistance in the preparation of this article.

Competing interests:

No relevant disclosures.

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