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Updated: May 24, 2026

Measuring the Functional Abilities of Children Aged 3-6 Years Old with Observational Methods and Computer Tools
Published on: June 20, 2020
Functional difficulties and health conditions among children with special health needs
Donald J Lollar1, Marilyn Sue Hartzell, Mary Ann Evans
1Department of Public Health and Preventive Medicine, School of Medicine, Oregon Health & Science University, Portland, OR 97239, USA. lollar@ohsu.edu
Insights
Functional difficulties significantly predict health outcomes for children with special health care needs, impacting services, personal limitations, and family well-being. Including these measures improves care coordination and resource allocation.
Area of Science:
- Pediatrics
- Public Health
- Health Services Research
Background:
- Children with special health care needs (CSHCN) face diverse health conditions and functional limitations.
- Understanding these challenges is crucial for effective intervention and policy development.
- Existing research often focuses on health conditions, potentially overlooking the impact of functional difficulties.
Purpose of the Study:
- To characterize the functional difficulties experienced by CSHCN.
- To assess the predictive power of health conditions versus functional difficulties on health outcomes.
- To inform interventions, policies, and research for CSHCN.
Main Methods:
- Utilized data from the 2005-2006 National Survey of Children With Special Health Care Needs.
- Employed descriptive statistics to identify common functional difficulties.
- Conducted multiple regression analyses to determine predictors of health outcomes.
Main Results:
- Functional difficulties are interrelated with health conditions in CSHCN.
- Both health conditions and functional difficulties predict health services use (e.g., emergency visits), personal limitations (e.g., daily activity impairment, school absences), and family impact (e.g., work reduction).
- Functional difficulties emerged as a stronger predictor for most outcomes, except school absences.
Conclusions:
- Incorporating functional difficulties into survey research and clinical practice is essential for CSHCN.
- Systematic assessment of functional difficulties will enhance policy, program planning, and resource allocation.
- A focus on functional difficulties promotes better service coordination across physical health, mental health, education, and social services.
Objectives:
To describe the functional difficulties of children with special health needs and to demonstrate the shared and unique contributions in predicting health outcomes and informing therapeutic interventions, policies, and research by using data from the 2005-2006 National Survey of Children With Special Health Care Needs.
Results:
Children with special health care needs experience an array of health conditions and functional difficulties that are interrelated. Although health conditions tend not to change, the characteristics of functional difficulties are subject to changes over time with age or as a result of interventions. Descriptive data highlight common functional difficulties across health conditions. Multiple regression analyses support both health conditions and functional difficulties predicting (1) health services, such as emergency department visits, (2) personal limitations such as impairment of daily activities and school absences, and (3) family impact, stopping or reducing work. Functional difficulties were, however, the stronger predictor for all outcomes except school absences.
Conclusions:
The results support the utility of expanding measures of children with special health care needs to include functional difficulties in survey research, as well as clinical and public health practice. Systematic inclusion of functional difficulties will inform policy development, program planning, outcome assessment, and resource allocation for this vulnerable population. A focus on functional difficulties facilitates stronger coordination of services across sectors including physical health, mental health, education, and other social services to improve the health and well-being for these children and youth.
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