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Healthcare costs among patients with chronic constipation: a retrospective claims analysis in a commercially insured population.

Abstract：

OBJECTIVE:To evaluate total annual all-cause, gastrointestinal-related, and symptom-related healthcare costs among chronic constipation (CC) patients and estimate incremental all-cause healthcare costs of CC patients relative to matched controls. METHODS:Patients aged ≥18 years with continuous medical and pharmacy benefit eligibility in 2010 were identified from the HealthCore Integrated Research Database. CC patients had ≥2 medical claims for constipation (ICD-9-CM code 564.0x) ≥90 days apart or ≥1 medical claim for constipation plus ≥1 constipation-related pharmacy claim ≥90 days apart, and no medical claims for irritable bowel syndrome (IBS). Sub-groups with and without abdominal symptoms were classified according to the presence/absence of abdominal pain (ICD-9-CM code 789.0x) and bloating (ICD-9-CM code 787.3x). Controls without claims for constipation, abdominal pain, bloating, or IBS or constipation-related prescriptions were randomly selected and matched 1:1 with CC patients on age, gender, health plan region, and plan type. Generalized linear models with bootstrapping evaluated incremental all-cause costs attributable to CC, adjusting for demographics and comorbidities. RESULTS:Overall, 14,854 patients (n = 7427 each in CC and control groups) were identified (mean age = 59 years; 75.4% female). Mean annual all-cause costs for CC patients were $11,991 (2010 USD), with nearly half (44.8%) attributable to outpatient services, including physician office visits and other outpatient services (10.0% and 34.8%, respectively). GI-related costs comprised 33.7% of total all-cause costs. Symptom-related costs accounted for 10.5%, primarily driven by costs of other outpatient services (50.6%). Adjusted incremental all-cause costs associated with CC were $3508 per patient per year ($4446 for CC with abdominal symptoms; $2783 for CC without abdominal symptoms), of which 81.0% were from medical services. Incremental cost estimates may be over- or under-estimated due to classification based on claims. CONCLUSIONS:CC imposes a substantial burden in direct healthcare costs in a commercially insured population, mainly attributable to greater use of medical services.

journal_name

J Med Econ

journal_title

Journal of medical economics

authors

Cai Q,Buono JL,Spalding WM,Sarocco P,Tan H,Stephenson JJ,Carson RT,Doshi JA

doi

10.3111/13696998.2013.860375

subject

Has Abstract

pub_date

2014-02-01 00:00:00

pages

148-58

issue

eissn

1369-6998

issn

1941-837X

journal_volume

pub_type

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Healthcare costs among patients with chronic constipation: a retrospective claims analysis in a commercially insured population.