scholarly journals Comparison Of Methods To Estimate Disease-Related Cost And Healthcare Resource Utilization For Autoimmune Diseases In Administrative Claims Databases

2019 ◽  
Vol Volume 11 ◽  
pp. 713-727
Author(s):  
Krista M Schroeder ◽  
Steve Gelwicks ◽  
April N Naegeli ◽  
Pamela C Heaton
Author(s):  
Ajay Sharma ◽  
Paula J Alvarez ◽  
Steven D Woods ◽  
Jeanene Fogli ◽  
Dingwei Dai

Abstract Background Hyperkalemia is a serious metabolic condition and can lead to life-threatening cardiac arrhythmias and sudden death. Guideline-directed medications that affect the renin-angiotensin-aldosterone axis can increase serum potassium and may limit their use. Hyperkalemia has been shown to drive healthcare resource utilization (HRU) and costs for patients with cardiorenal conditions. Objectives To describe hyperkalemic patient characteristics and quantify patient HRU and costs relative to normokalemic patients from a large US health plan. Methods A retrospective cohort study that identified and evaluated a hyperkalemic patient population from a large administrative claims database. The observation period was 1 January 2015 to 31 May 2018, with a 1-year follow-up period after the index date (the earliest service/claim with evidence of hyperkalemia). Primary patient outcomes included inpatient admissions, emergency department (ED) visits, primary care physician (PCP)/specialist visits, length of stay (LOS) and associated medical and pharmacy costs. This hyperkalemic cohort was stratified by renin-angiotensin-aldosterone system inhibitor (RAASi) utilization and chronic kidney disease (CKD) stage for the economic analysis. Key findings 86,129 adult patients with hyperkalemia were evaluated in the study cohort (median age: 69 years). There were more males [45,155 (52%)], with the majority of patients located in the Southern United States [45,541 (51%)] and a 70/30 split of Medicare to a commercial health plan. Most patients had CKD, hypertension and hyperlipidemia; ≥80% of the patients had ≥4 comorbidities. Over 40% of patients were not receiving RAASi therapy, and potassium binder use was low (<5%). Patients using optimal-dose RAASi with proportion of days covered ≥80% were observed to have the lowest HRU for inpatient admissions, ED and PCP visits and LOS days. Conclusions Hyperkalemia is associated with substantial HRU and costs. The development of a quality improvement program structured around the management of hyperkalemia in individuals with heart failure, diabetes and/or CKD may be necessary.


Blood ◽  
2016 ◽  
Vol 128 (22) ◽  
pp. 532-532 ◽  
Author(s):  
Xue Song ◽  
Pranav Gandhi ◽  
Adrienne M Gilligan ◽  
Prachi Arora ◽  
Caroline Henriques ◽  
...  

Abstract INTRODUCTION: In the pivotal Randomized Evaluation of Long-Term Anticoagulant Therapy (RE-LY) clinical trial, dabigatran was associated with lower rates of stroke and systemic embolism compared to adjusted-dose warfarin. However, real-world evidence comparing stroke- and bleed-specific healthcare resource utilization (HCRU), costs, length of stay (LOS) per hospitalization and readmissions in non-valvular atrial fibrillation (NVAF) patients newly treated with dabigatran or warfarin is limited. METHODS: Using a nationwide administrative claims database in the US, a retrospective matched-cohort of newly diagnosed NVAF patients aged ≥18 years treated with dabigatran or warfarin in 01/01/2011-12/31/2013 was evaluated. Index date was the first dabigatran or warfarin claim date. All patients had data for 12 months before the index date and a maximum follow-up of 12 months or until discontinuation or switch, disenrollment, end of study period, or inpatient death. Propensity scores were used to match dabigatran and warfarin users 1:1. Stroke or bleed-specific HCRU and costs were defined as hospitalizations with stroke or bleed as the primary discharge diagnosis and outpatient claims with stroke or bleed diagnosis in any position. Percentage and incidence rate (IR) of first stroke or bleed per 100 person-years and associated 95% confidence interval (CI) were reported. Stroke- and bleed-specific per-patient-per-year (PPPY) HCRU and costs were analyzed for all patients. Among those with a hospitalization for stroke or bleed, LOS and readmissions of patients who were admitted and discharged home were reported. Cox regression examined the risk of stroke or bleed and logistic regression assessed the impact on stroke- and bleed-specific readmission between dabigatran and warfarin users. RESULTS: A total of 18,980 dabigatran patients were matched to corresponding warfarin patients. Of these, the percentage of dabigatran patients with stroke (0.5%, n=87 vs 0.8%, n=142; P<0.001) or bleed (1.2%, n=227 vs 1.6%, n=294; P=0.003) was significantly lower than warfarin patients. The IR (95% CI) of stroke [0.65 (0.51-0.78) vs. 1.06 (0.89-1.24)] and bleed [1.69 (1.47-1.91) vs. 2.20 (1.95-2.46)] was also lower in dabigatran patients compared to warfarin patients. After adjustment, compared to warfarin patients, the hazard ratio (HR) of having a first stroke or bleed was significantly lower in dabigatran patients [(HR = 0.60 (95% CI = 0.46-0.79)) and (HR = 0.76 (95% CI = 0.64-0.91)), respectively]. Among all NVAF patients, dabigatran users had a significantly lower number of stroke-specific hospitalizations (0.007 vs 0.013, P<0.001) and outpatient visits (0.304 vs 0.450, P<0.001) compared to warfarin patients. Similarly, dabigatran users had significantly lower bleed-specific hospitalizations (0.024 vs 0.035, P=0.008) and outpatient visits (0.820 vs 0.920, P=0.018). Dabigatran users had significantly lower stroke-specific outpatient visit costs ($84 vs $144, P=0.01) and bleed-specific hospitalization costs ($360 vs $612, P=0.007). There was no significant difference observed in stroke-specific hospitalization costs and bleed-specific outpatient costs between the two groups. Among dabigatran patients with a stroke or bleed, average LOS was significantly lower compared to warfarin patients [(4.74 days vs 5.70 days) and (4.30 days vs 4.60 days), both P<0.001]. Stroke-related 30-day readmissions did not significantly differ between dabigatran and warfarin patients (0.4%, n=14 vs 0.6%, n=25, P=0.078). However, the odds of stroke-related readmission were significantly lower in dabigatran compared to warfarin users [Odds Ratio (OR) = 0.59 (95% CI = 0.51-0.69)]. Bleed-related 30-day readmissions were significantly lower for dabigatran than warfarin users (0.8%, n=30 vs. 1.5%, n=59, P=0.002); similar results were found after adjustment [OR=0.54 (95% CI = 0.47-0.63)]. CONCLUSION: Using real-world data of newly diagnosed NVAF patients, dabigatran users had a lower risk of stroke or bleed than warfarin users. Dabigatran users had lower stroke- and bleed-specific HCRU (including LOS per hospitalization), and lower odds of stroke- and bleed-specific readmissions compared to warfarin users. Also, costs associated with bleed-specific hospitalizations and stroke-specific outpatient visits were significantly lower for dabigatran users compared to warfarin users. Disclosures Song: Truven Health Analytics: Employment; Amgen: Other: This study was funded by Amgen.. Gilligan:Truven Health Analytics, an IBM Company: Employment. Sander:Boehringer Ingelheim: Employment. Smith:Truven Health Analytics: Employment.


2017 ◽  
Vol 4 (suppl_1) ◽  
pp. S435-S436
Author(s):  
Jianbin Mao ◽  
Micheal Johnson ◽  
Jeffrey Mcpheeters ◽  
Girish Prajapati ◽  
Andrew Beyer

Abstract Background Initial antiretroviral therapy (ART) is modified for non-virologic failure reasons in many patients, and the healthcare resource utilization (HRU) and costs associated with these switches in the real world is not well understood. Methods Administrative claims data from the Optum Research and Impact National Benchmark Databases were utilized. Adult patients (≥18 years) with HIV-1 diagnosis code, and claim for an anchor agent of the protease inhibitor (PI) or non-nucleoside reverse transcriptase inhibitor (NNRTI) class in first-line ART between July 1, 2006 and December 31, 2015 were identified (see Figure 1 for addl. criteria). Patients with a claim for an anchor agent (PI or NNRTI) different from that in first-line ART were defined as switchers, with index date as date of first claim for new anchor agent. Switchers were matched to patients who did not switch (non-switchers) at 1:3 ratio using propensity score matching on patient and first-line ART characteristics. For non-switchers, date following corresponding duration of first-line ART in matched switcher was assigned as index date. Per-patient-per-month (PPPM) all-cause HRU and costs (US$) during switch period (±15 days of index date) were compared descriptively. Results 11,302 patients met study criteria. After matching, switcher (1,204) and non-switcher (3,612) groups were comparable on mean age (41.9 vs. 41.7 years), percent male (85.8% vs. 82.6%), percent commercial enrollee (96.0% vs. 95.8%), mean Quan-Charlson comorbidity index score (both 0.4), and mean ART pill burden (both 2.2) with standard difference less than absolute value of 10%. During switch period, switchers had higher mean PPPM ambulatory visits (2.30 vs. 1.26), emergency room visits (0.12 vs. 0.06), inpatient stays (0.04 vs. 0.01), and pharmacy fills (4.52 vs. 3.01) than non-switchers (all P &lt; 0.001). Switchers also incurred greater mean PPPM costs during switch than non-switchers, with an additional $2,261/month total cost, and $1,031/month pharmacy cost (Figure 2). Conclusion The study gives a more complete view of the burden of switching initial ART with pharmacy costs driving this burden. Assuming some patients will switch regardless of the regimen selected, less expensive initial ART could reduce this burden further. Disclosures M. Johnson, Merk & Co: Research Contractor, research funded by Merk; J. Mcpheeters, Merck & Co.: Research Contractor, Sarary from Optum; G. Prajapati, Merck & Co., Inc.: Employee, Salary; A. Beyer, Merck & Co., Inc: Employee and Shareholder, Salary


2021 ◽  
pp. 247553032110217
Author(s):  
Jeffrey M. Sobell ◽  
Ran Gao ◽  
Amanda K. Golembesky ◽  
Nirali Kotowsky ◽  
Elizabeth M. Garry ◽  
...  

Background: Generalized pustular psoriasis (GPP) is a rare, severe neutrophilic skin disease with high unmet clinical need. The introduction of a GPP-specific International Classification of Diseases, 10th Revision (ICD-10), code has made it possible to generate a more accurate GPP patient profile. Objectives: To describe the characteristics and compare the patient profile and burden of disease of patients with GPP with patients with plaque psoriasis. Methods: A retrospective study was conducted using a US administrative claims database, the IBM® MarketScan® Research Database. The study took place between October 1, 2015, and September 30, 2018. Patients with at least 1 inpatient or 2 outpatient L40.1 (GPP) or L40.0 (psoriasis vulgaris) diagnostic codes were included for analysis. Outcome measures included descriptions of comorbidities, medication use, and healthcare resource utilization (HCRU) among GPP, plaque psoriasis, and general population (matched to those with GPP) cohorts. Results: Patients with GPP had more baseline comorbidities than those with plaque psoriasis and the matched cohort, including psoriatic arthritis (20.6% vs 6.4% and <0.1%) and hyperlipidemia (20.4% vs 16.3% and 11.8%). Patients with GPP also had greater medication use and higher HCRU than those with plaque psoriasis and the matched cohort. Conclusion: Patients with GPP generally experience more comorbidities, with higher HCRU, than patients with plaque psoriasis. Although the large dataset permitted identification of GPP patients with longitudinal follow-up, the lack of a validation algorithm for GPP is a limitation and a potential area for future research.


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