Childhood mental disorders are a public health concern due to their prevalence, early onset, and impact on children, families, and communities.
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Mental disorders in childhood can negatively affect healthy development by interfering with children's ability to achieve social, emotional, cognitive, and academic milestones and to function in daily settings. In addition, mental disorders account for the largest area of aggregate medical spending ($8.9 billion) among all health disorders that contribute to overall child health expenses.
3The five most costly children's conditions, 2006: estimates for the US civilian noninstitutionalized children, ages 0-17.
Despite evidence of high expenses related to medical care, mental health treatment utilization among children is relatively low, with a significant portion of children receiving no mental health treatment even though they may have a mental disorder.
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Existing national surveys indicate that between 13% and 20% of children in the US have a mental, emotional, or behavioral disorder each year, although most of these surveys have focused on adolescents (age 12-17 years) or did not assess multiple diagnoses.
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Mental health surveillance among children—United States, 2005-2011.
Trends across time in these data suggest that although the prevalence of some childhood mental disorders has remained relatively stable, that of several disorders (eg, depression among adolescents) has increased.
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The prevalence of specific childhood mental disorders has implications for service planning, resource allocation, and prevention and treatment programming. According to a nationally representative survey of adolescents (age 13-18 years) in the US, the most common mental disorders by lifetime prevalence are anxiety (31.9%), behavior (19.1%), and mood (14.3%).
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Lifetime prevalence of mental disorders in U.S. adolescents: results from the National Comorbidity Survey Replication—Adolescent Supplement (NCS-A).
The purpose of the present study was to use the latest data from the 2016 National Survey of Children's Health (NSCH) to report nationally representative prevalence estimates of current depression, anxiety problems, and behavioral or conduct problems among children aged 3-17 years in the US and the receipt of past-year mental health treatment among those with each condition. In addition to providing the most recent estimates of childhood mental disorders, this study covers a wider range of ages than most national surveys. Although diagnoses of mental health conditions in very young children may be relatively rare, previous research on mental health treatment
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has included preschool-aged children because the diagnosis and treatment of these 3 conditions in infants and toddlers is particularly complex. For example, Ali et al found that preschoolers, especially those without a diagnosis, often receive medication treatment without accompanying psychosocial intervention.
8- Ali M.M.
- Teich J.
- Lynch S.
- Mutter R.
Utilization of mental health services by preschool-aged children with private insurance coverage.
The study examined the sociodemographic and health factors associated with each of these conditions and related treatment, and provides a foundation for future studies using the recently redesigned NSCH.
Results
Prevalence estimates for each disorder, overall and by sociodemographic and health-related characteristics, are presented in
Table I. In 2016, 3.2% of US children and adolescents (approximately 1.9 million) had current depression, 7.1% (approximately 4.4 million) had a current anxiety problem, and 7.4% (approximately 4.5 million) had a current behavioral/conduct problem. Differences in the severity and presence of comorbid disorders were observed across conditions. Among children and adolescents with current depression, 9.7% were rated by parents/caregivers has being severely affected by their condition and approximately 45% were rated as being mildly or moderately affected, respectively. Approximately 8% of children with a current anxiety problem were rated as severely affected, compared with approximately 45% who were rated mildly or moderately affected. Finally, nearly 13% of children with diagnosed behavioral/conduct problems were rated as severely affected, 40% were rated as mildly affected, and 48% were rated as moderately affected. The presence of a comorbid mental disorder was most commonly reported among those with current depression, with nearly three-quarters also reporting a current anxiety problem.
Table IPrevalence of currently diagnosed depression, anxiety, and behavioral/conduct problems among children aged 3-17 years, by sociodemographic and health characteristics, NSCH 2016
CBSA, Core-Based Statistical Area.
The prevalence of each disorder varied by sociodemographic and health-related factors (χ2 test results not shown; data available on request). For example, prevalence varied by sex only for behavioral/conduct problems, for which the prevalence in boys was more than twice that in girls. Estimates also varied by age, with the prevalence of behavioral/conduct problems peaking in middle childhood (age 6-11 years), whereas depression and anxiety problems were most common among adolescents (age 12-17 years). Anxiety problems were most common among non-Hispanic white children compared with children of other racial/ethnic backgrounds, and behavior/conduct problems were most common among non-Hispanic black children. The prevalence of both depression and behavioral/conduct problems was higher among children living in poor (<100% FPL) households compared with those living in households at ≥200% FPL. The prevalence of all 3 disorders was generally highest among children with public insurance only or some combination of public and private insurance compared with children with private insurance only, with combined public and private insurance, or without insurance. Finally, children in less than excellent or very good physical health and those living with a primary caregiver in fair or poor mental/emotional health had the highest prevalence of any of these disorders compared with children in fair or poor physical health and those living with a caregiver with good, very good, or excellent mental/emotional health. Approximately 30% of children with fair or poor physical health had an anxiety problem or a behavioral/conduct problem, and 18% had depression. Among children with a primary caregiver with fair or poor self-rated mental or emotional health, the prevalence of depression was 13% and the prevalence of anxiety or behavioral/conduct problems was 22%.
Unadjusted PRs and adjusted PRs (aPRs) for the 3 disorders are presented in
Table II. Unadjusted PRs provide a complementary illustration of the associations and patterns presented in
Table I. After adjustment, the strength of some of these associations was attenuated, and additional associations were observed for race/ethnicity, poverty, and insurance. Compared with non-Hispanic white children, Hispanic children were less likely to have any of the 3 mental disorders, whereas non-Hispanic black children were less likely to have depression and anxiety and were no longer more likely to have behavior/conduct problems. For anxiety and behavioral/conduct problems, children living in poor households (<100% FPL) were less likely than those in the more advantaged households to have these disorders; in addition, children in near-poor households (100%-199% of FPL) were less likely to have behavioral/conduct problems. Compared with privately insured children, those with public insurance—either alone or in combination with some form of private coverage—were more likely to have these mental disorders. This was particularly true for behavioral or conduct problems, which were 2-3 times more commonly diagnosed in children with some form of public coverage compared with those with private insurance.
Table IIUnadjusted PRs and aPRs of currently diagnosed depression, anxiety, and behavioral/conduct problems among children aged 3-17 years, by sociodemographic and health characteristics, NSCH 2016
Bold values are statistically significant results.
Table III details the receipt of past-year treatment or counseling by a mental health professional among children with each of the 3 disorders. Overall, treatment receipt was more common among children with depression (78.1%), whereas the receipt of treatment for anxiety and behavioral/conduct problems was 59.3% and 53.5%, respectively. The receipt of treatment varied by selected sociodemographic and health-related characteristics among children with each disorder (χ
2 test results available on request). For both anxiety problems and behavioral/conduct problems, treatment receipt was more common among school-aged children compared with those aged 3-5 years, and among those living in the wealthiest households (≥400% FPL) compared with those living in poverty (<100% FPL). No other statistically significant differences by poverty or insurance status or type were observed. For anxiety and behavioral/conduct problems, receipt of treatment was more likely among children with greater condition severity.
Table IIIReceipt of past year mental health treatment or counseling among children ages 3-17 currently diagnosed depression, anxiety, and behavioral/conduct problems, by sociodemographic and health characteristics, NSCH 2016
CI, Confidence Interval; GED, General Equivalency Diploma; FPL, Federal Poverty Level.
The independent associations between the selected sociodemographic and health-related characteristics and past-year mental health treatment among children with each of the 3 disorders are presented in
Table IV. In general, demographic factors were not significantly associated with the likelihood of receiving treatment with the exception of age; among children with anxiety, those aged 3-5 years were less likely than adolescents to have received treatment. Compared with children living in higher-income households (≥400% FPL), poor children (<100% FPL) were less likely to have received treatment across all 3 disorders, as were near-poor children (100%-199% FPL) with anxiety problems and those living in households at 200%-399% FPL with anxiety or behavior/conduct problems. Insurance status was not significantly associated with receipt of treatment among children with depression or behavioral/conduct problems; however, among children with anxiety problems, those with combined public and private coverage were 1.2 times more likely with those with private coverage to have received treatment. Condition severity and presence of a selected comorbid mental disorder were associated with receipt of treatment among children with each of the disorders; children with a “severe” disorder were 1.2-1.5 times more likely to have received treatment compared with those with a “mild” disorders. Among the comorbidities included, current depression appeared to have the greatest impact on treatment receipt; in those with either anxiety or a behavior/conduct problem, concurrent depression was associated with an approximately 1.6-fold greater likelihood of receiving treatment compared with those without this comorbidity.
Table IVUnadjusted PRs and aPRs of receipt of past-year mental health treatment or counseling among children aged 3-17 years currently diagnosed depression, anxiety, and behavioral/conduct problems, by sociodemographic and health characteristics, NSCH 2016
Bold values are statistically significant results.
Discussion
Using the most recent nationally representative data from the redesigned NSCH, our findings affirm that depression, anxiety problems, and behavioral/conduct problems remain common among children and extend what is known about the prevalence among children as well as subpopulations in whom treatment gaps persist. Consistent with existing epidemiologic studies, behavioral or conduct problems were more common in boys than in girls, and both anxiety and behavioral/conduct problems were more common than depression.
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Regarding comorbid mental disorders, we found that nearly 3 in 4 children with depression had concurrent anxiety, whereas 1 in 3 children with anxiety had concurrent depression. These disorders share a common etiology, and longitudinal studies have identified childhood anxiety as a risk factor for developing depression.
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, 18Relationship between anxiety and depressive disorders in childhood and adolescence.
The data also highlight significant associations between childhood mental disorders and children's overall health, as well as parents/caregivers' mental and emotional health.
The prevalence estimates for both anxiety and behavior/conduct problems in this study were higher than those reported previously from other surveys.
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For example, prevalence estimates based on data from the 2007 National Health Interview Survey (an in-person survey) and the 2011-2012 NSCH (a telephone survey) were only one-half those reported herein, although estimates for depression were comparable. Differences in data collection mode and questionnaire wording may explain some of the differences; for example, the inclusion of behavioral/conduct diagnoses by educators in the present study might have affected prevalence estimates, particularly for mild/moderate cases.
This study highlights differences in the receipt of treatment among those with each of these disorders. Treatment guidelines, particularly regarding prescription medication, for children with mental disorders are more firmly established for depression than for anxiety and behavioral/conduct problems.
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In addition, anxiety and behavioral/conduct problems can sometimes be addressed in primary or educational settings, focusing on parenting behavior and behavioral management strategies rather than on direct provision of treatment to the child.
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These differences, along with identification of condition severity, co-occurrence of disorders, and higher household income as the main predictors of treatment receipt, highlight the complexity of treatment provision and utilization for children with mental disorders.
Although children's overall health and parents/caregivers' mental and emotional health were related to disorder prevalence, these health-related factors were not significantly associated with receipt of treatment. These findings are consistent with the literature
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documenting a greater risk of mental health problems among children with parents with a mental health problem, which may be due to shared genetic and biological predispositions as well as with environmental factors and the parent-child relationship. Although most research suggests that caregivers' mental health status can impact children's mental health, it is possible that bidirectional effects also may occur wherein a child's mental and behavioral health may impact that of their parents/caregivers. On the other hand, treatment utilization in children might be directly associated not with the parents' mental health, but rather with structural constraints and barriers associated with the parents' perceptions of mental health problems and services,
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perhaps benefiting from their own treatment utilization.
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Future research is needed to explore types of treatments received beyond the specialty mental health services described herein, settings in which those services are received, and related barriers and facilitating factors associated with treatment access and utilization.
The finding that after adjustment, children from low-income families were less likely to be diagnosed and treated for mental disorders is notable given previous research from various disciplines demonstrating the wide-ranging negative effects of poverty on mental and emotional health in children (and adults).
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Our results likely reflect the use of a measure of diagnosed mental health conditions, which by definition suggests access to a provider who is able to make such a determination. In fact, we found that irrespective of disorder, children from poor households were less likely to receive treatment from a mental health professional. Care for pediatric depression, anxiety, and behavioral/conduct problems is commonly sought in pediatric primary care settings,
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and low-income parents may be more likely to seek care in such settings. The NSCH items do not capture data regarding such treatment. In previous studies, providers in these settings have reported several barriers to the provision of this care, including a lack of training in treating child behavioral health problems and a lack of confidence in treating children who need counseling.
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Even with training, pediatricians frequently report challenges in providing access to behavioral health care in these settings.
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Finally, consistent with previous research,
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we noted significant differences in the likelihood of both diagnoses and receipt of related treatment by race and ethnicity that we attribute to a combination of factors, including access to care, resiliency, and the potential for diagnostic bias. Limitations in the access to care more broadly among Hispanic and African American children may suggest that these children are less likely to be seen by health providers and diagnosed with the conditions examined in this study.
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On the other hand, resiliency factors, such as family closeness, may protect these youth from other risk factors associated with these diagnoses.
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Furthermore, racial and ethnic inequities in diagnosis, such as bias related to conduct problems, also may help explain the higher prevalence of behavioral/conduct problems among African American children.
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Several limitations of the data should be noted. First, data on both diagnoses and treatment are based on parent/caregiver report and may be subject to recall bias. However, research has shown good agreement between parental report and clinical records in a range of both past-year and lifetime diagnoses and health events.
39How well they remember: the accuracy of parent reports.
In addition, Kentgen et al found high test-retest reliability for maternal reports of diagnosed mental health conditions among their children,
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suggesting that parents' reports of diagnoses may be less problematic. Second, the wording of survey items differed among the 3 disorders, thereby limiting comparability, because parents might have interpreted questions about anxiety and behavior/conduct “problems” differently than those about depression that did not include this qualifier. Third, detailed information about the setting, type, or duration of treatment or counseling was not reported, and thus estimates may vary depending on parents' perceptions of the types of services received. In addition, we are unable to examine whether the care that children are receiving is consistent with evidence-based recommendations for each of these disorders. Finally, the weighted response rate for the survey was 40.7%, which may have resulted in nonresponse bias; however, nonresponse bias analyses suggest that the application of survey weights to these analyses attenuated resulting bias.
412016 national survey of children's health: nonresponse bias analysis.
This study provides the latest nationally representative estimates of both multiple diagnosed mental disorders and receipt of related treatment across the US pediatric population. Depression, anxiety, and behavioral/conduct problems remain prevalent among US children, although significant disparities persist with respect to receipt of related treatment. Future research to better understand the factors associated with and implications of observed differences in treatment receipt by condition could inform programmatic opportunities to support diagnostic and treatment services.
Article Info
Publication History
Published online: October 12, 2018
Accepted:
September 7,
2018
Received in revised form:
August 21,
2018
Received:
April 9,
2018
Footnotes
The views expressed in this article are those of the authors and do not necessarily reflect the official policies of the US Department of Health and Human Services, the Health Resources and Services Administration, the Centers for Disease Control and Prevention, or the Substance Abuse and Mental Health Services Administration, nor does mention of the department or agency names imply endorsement by the US government. The authors declare no conflicts of interest.
Copyright
Published by Elsevier Inc.