Impact of hypertension on healthcare costs among children
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Published on: March 28, 2025
Todd P Gilmer1, Patrick J O'Connor, Alan R Sinaiko
1Department of Family and Preventive Medicine, University of California, San Diego, 9500 Gilman Dr, La Jolla, CA 92092-0622.
Insights
Elevated blood pressure (BP) significantly increases healthcare costs in children and adolescents, more so than body mass index (BMI). Early identification and management of hypertension are crucial for cost reduction.
Area of Science:
- Pediatric Health Economics
- Cardiovascular Health in Youth
- Public Health and Healthcare Costs
Background:
- Elevated blood pressure (BP) and body mass index (BMI) are prevalent in children.
- The combined impact of BP and BMI on pediatric healthcare costs is understudied.
Purpose of the Study:
- To estimate healthcare costs associated with BP and BMI in children and adolescents.
- To determine the independent and combined effects of BP and BMI on healthcare expenditures.
Main Methods:
- Prospective dynamic cohort study of 71,617 children (aged 3-17) over 208,800 child-years.
- Generalized linear models used to calculate standardized annual healthcare costs.
- Analysis adjusted for BMI status when evaluating BP, and for BP when evaluating BMI.
Main Results:
- Children with hypertension incurred significantly higher annual costs ($1972) compared to those with normal BP ($736) or prehypertension ($945).
- Higher BMI percentiles (85th-95th and ≥95th) were associated with increased costs compared to lower percentiles (<85th).
- Blood pressure status demonstrated a greater influence on healthcare costs than BMI status.
Conclusions:
- Prehypertension and hypertension are independently associated with increased healthcare costs in children and adolescents.
- While elevated BMI also impacts costs, BP status is the primary driver.
- Studies not adjusting for BP may overestimate costs associated with elevated BMI.
Objectives:
Despite the significant prevalence of elevated blood pressure (BP) and body mass index (BMI) in children, few studies have assessed their combined impact on healthcare costs. This study estimates healthcare costs related to BP and BMI in children and adolescents.
Study Design:
Prospective dynamic cohort study of 71,617 children aged 3 to 17 years with 208,800 child years of enrollment in integrated health systems in Colorado or Minnesota between January 1, 2007, and December 31, 2011.
Methods:
Generalized linear models were used to calculate standardized annual estimates of total, inpatient, outpatient, and pharmacy costs, outpatient utilization, and receipt of diagnostic and evaluation tests associated with BP status and BMI status. Results: Total annual costs were significantly lower in children with normal BP ($736, SE = $15) and prehypertension ($945, SE = $10) than children with hypertension ($1972, SE = $74) (P <.001, each comparison), adjusting for BMI. Total annual cost for children below the 85th percentile of BMI ($822, SE = $8) was significantly lower than for children between the 85th and 95th percentiles ($954, SE = $45) and for children at or above the 95th percentile ($937, SE = $13) (P <.001, each), adjusting for HT.
Conclusions:
This study shows strong associations of prehypertension and hypertension, independent of BMI, with healthcare costs in children. Although BMI status was also statistically significantly associated with costs, the major influence on cost in this large cohort of children and adolescents was BP status. Costs related to elevated BMI may be systematically overestimated in studies that do not adjust for BP status.
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