Early childhood obesity: Association with healthcare expenditure in Australia

Area of Science:

• Pediatric Health
• Public Health
• Health Economics

Background:

• Childhood overweight and obesity are growing public health concerns with potential economic implications.
• Understanding the direct healthcare costs associated with pediatric obesity is crucial for resource allocation and policy development.

Purpose of the Study:

• To investigate the association between overweight/obesity in early childhood and direct healthcare costs.
• To quantify the incremental healthcare expenditure attributable to childhood obesity over a three-year period, adjusting for key child, household, and socioeconomic factors.

Main Methods:

• A longitudinal cohort study involving 350 children from age 2 to 5 years in Sydney, Australia.
• Weight status was determined using mean Body Mass Index (BMI) z-scores, and healthcare utilization (medicines, non-hospital, hospital, emergency care) was tracked via data linkage.
• Adjusted multivariable regression analyses examined the relationship between total 3-year healthcare costs and weight status.

Main Results:

• Children with obesity (BMI z-score >2SD) incurred 1.62 times higher healthcare costs than healthy-weight children, after adjusting for confounders.
• Healthcare costs for overweight children were not significantly different from those of healthy-weight children (P = 0.96).
• The additional 3-year healthcare costs for a child with obesity were estimated at $AUD 825 for general patients and $AUD 1332 for concession card holders.

Conclusions:

• Childhood obesity is associated with significantly increased direct healthcare costs.
• Preventing obesity in early childhood presents a potential strategy for reducing healthcare expenditure.
• Early intervention and prevention programs for childhood obesity may yield substantial economic benefits.