Burden of Crohn's disease in the United States: long-term healthcare and work-loss related costs
Journal of Medical Economics, 2020
To quantify the long-term direct and indirect costs among patients with Crohn's disease (CD) and specific subgroups of these patients in the United States from the private payer's perspective.
Materials and methods
This retrospective study used the OptumHealth Care Solutions, Inc database (01 January 1999-31 March 2017) to match (1:5) adult patients with ≥2 claims for CD to patients without inflammatory bowel disease (IBD). Patterns observed during follow-up (i.e. biologics, opioids, or steroids; CD-related surgery; moderate-to-severe disease; and comorbidities) were used to identify CD subgroups. Comparisons of healthcare resource utilization, work loss days, and direct and indirect work loss-related costs were made between matched cohorts. Descriptive analyses of costs were conducted within each CD subgroup.
There were 6,715 and 33,575 patients in the CD and non-IBD cohorts, respectively. The direct burden was significantly higher in the CD cohort compared to the non-IBD cohort, with 0.34 inpatient admissions per patient per year (PPPY) versus 0.12 (217% increase; p < .001), and $24,500 direct healthcare costs PPPY versus $7,037 ($17,463 increase; p < .001). The trend was similar for the indirect burden, with work loss-related costs PPPY of $5,490 in the CD cohort versus $3,322 in the non-IBD cohort ($2,168 increase; p < .001). The burden was numerically higher in the CD subgroups, with direct healthcare costs reaching $101,013 PPPY in the surgery subgroup.
Severity of CD was determined based on claims-based algorithms due to the lack of access to medical files. Absenteeism was imputed based on claims data, and presenteeism was not assessed.
The direct healthcare and indirect work loss-related costs of patients with CD was significantly higher compared to patients without IBD over an average follow-up of 5 years.