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  • Title: Characterizing idiopathic pulmonary fibrosis patients using US Medicare-advantage health plan claims data.
    Author: Mortimer K, Hartmann N, Chan C, Norman H, Wallace L, Enger C.
    Journal: BMC Pulm Med; 2019 Jan 10; 19(1):11. PubMed ID: 30630460.
    Abstract:
    BACKGROUND: Idiopathic pulmonary fibrosis (IPF) is a rare life-threating interstitial lung disease (ILD). This study characterizes demographics, health care utilization, and comorbidities among elderly IPF patients and estimates prevalence and incidence rates for selected outcomes. METHODS: Cohort study using a large US health insurance database (Optum's Medicare Advantage plan). INCLUSION CRITERIA: ≥ 1 diagnosis code for IPF (2008 - 2014), age ≥65 years, no diagnosis of IPF or other ILD in prior 12 months. Demographics, health care utilization, comorbidities and incidence rates for various outcomes were estimated. Follow-up continued until the earliest of: health plan disenrollment, death, a claim for another known cause of ILD, or end of the study period. RESULTS: 4,716 patients were eligible; 53.4% had IPF diagnostic testing. Median age was 77.5 years, 50.3% were male, median follow-up time was 0.8 years. Incidence rates ranged from 1.0/1,000 person-years (lung transplantation) to 374.3/1,000 person-years (arterial hypertension). Baseline characteristics and incidence rates were similar for cohorts of patients with and without IPF diagnostic testing. CONCLUSIONS: Elderly IPF patients experience a variety of comorbidities before and after IPF diagnosis. Therapies for IPF and for the associated comorbidities may reduce morbidity and associated health care utilization of these patients.
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