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. 2018 Aug 21;4(5):409-416.
doi: 10.1002/osp4.291. eCollection 2018 Oct.

Obesity and healthcare resource utilization: results from Clinical Practice Research Database (CPRD)

C W le Roux  1   2 , B Chubb  3 , E Nørtoft  4 , A Borglykke  4
Affiliations

Obesity and healthcare resource utilization: results from Clinical Practice Research Database (CPRD)

C W le Roux et al. Obes Sci Pract. .

Abstract

Background/objectives: The economic burden of obesity and type 2 diabetes (T2D) rises with increasing prevalence. This study estimates the association between obesity, healthcare resource utilization (HCRU) and associated costs in individuals with/without T2D.

Subjects/methods: This observational cohort study used the United Kingdom Clinical Practice Research Datalink data. Between 1 January 2011 and 31 December 2015, total HCRU costs and individual component costs (hospitalizations, general practitioner contacts, prescriptions) were calculated for individuals linked to the Hospital Episodes Statistics database with/without T2D with normal weight, overweight, class I, II, III obesity.

Results: A total of 396,091 individuals were included. Increasing body mass index (BMI) was associated with increased HCRU costs. At each BMI category, costs were greater for individuals with than without T2D. Relative to normal BMI, increasing BMI was positively associated with increased HCRU costs, with similar magnitude regardless of T2D. The total HCRU cost for an individual with class III obesity was 1.4-fold (£3,695) greater than for normal weight.

Conclusion: In the United Kingdom, HCRU costs were positively associated with increasing BMI, irrespective of T2D status. The combination of T2D and obesity was associated with higher HCRU costs compared with individuals of the same BMI, without T2D. These findings suggest that prioritizing weight management programmes focused specifically on individuals with obesity and T2D may be more cost-effective than for those with obesity alone.

Keywords: Diabetes mellitus type 2; general practitioners; obesity; prescriptions.

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Figures

Figure 1
Figure 1
Mean total cost of healthcare resource utilization per individual for the total, individuals without type 2 diabetes (T2D) and T2D population, adjusted for age and gender. BMI, body mass index.
Figure 2
Figure 2
Estimates of total healthcare resource utilization costs, using normal body mass index (BMI) individuals as a reference value.
Figure 3
Figure 3
Estimates of the increase in total healthcare resource utilization costs with increasing body mass index (BMI) for the total population and individuals with and without type 2 diabetes, relative to individuals of normal BMI (using BMI as a continuous variable). HCRU, healthcare resource utilization.
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