Ariel Berger

Ariel Berger

orcid

Research Focus & Metrics

Academic Career Length

24Years (2003-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 April 2004 in The Journal of Pain
Verified
Journal Article
Closed access
ABAriel Berger
Ariel Berger
EDEllen M Dukes
Ellen M Dukes
GOGerry Oster
Gerry Oster

26 July 2007 in International Journal Of Clinical Practice
Verified
Journal Article
Open access
PDF file
ABAriel Berger
Ariel Berger
EDE. Dukes
E. Dukes
SMS. Martin
S. Martin
JEJ. Edelsberg
J. Edelsberg
GOG. Oster
G. Oster
Purpose: To examine the characteristics and healthcare costs of fibromyalgia syndrome (FMS) patients in clinical practice. Materials and methods: Using a US health‐insurance database, we identified all patients, aged ≥ 18 years, with any healthcare encounters for FMS (ICD‐9‐CM diagnosis code 729.1) in each year of the 3‐year period, 1 July 2002 to 30 June 2005. A comparison group was then constituted, consisting of randomly selected patients without any healthcare encounters for FMS during this 3‐year period. Comparison group patients were matched to FMS patients based on age and sex. Characteristics and healthcare costs of FMS patients and comparison group patients were then examined over the 1‐year period, 1 July 2004 to 30 June 2005 (the most recent year for which data were available at the time of the study). Results: The study sample consisted of 33,176 FMS patients and an identical number in the comparison group. Mean age was 46 years, and 75% were women. FMS patients were more likely to have various comorbidities, including painful neuropathies (23% vs. 3% for comparison group), anxiety (5% vs. 1%), and depression (12% vs. 3%) (all p < 0.001); they also were more likely to have used pain‐related pharmacotherapy (65% vs. 34% for comparison group; p < 0.001). Mean (SD) total healthcare costs over 12 months were about three times higher among FMS patients [$9573 ($20,135) vs. $3291 ($13,643); p < 0.001]; median costs were fivefold higher ($4247 vs. $822; p < 0.001). Conclusions: Patients with FMS have comparatively high levels of comorbidities and high levels of healthcare utilization and cost.

1 February 2019 in The American Journal of the Medical Sciences
Verified
Journal Article
Open access
NBNicole Gidaya Bonine
Nicole Gidaya Bonine
ABAriel Berger
Ariel Berger
AAArman Altincatal
Arman Altincatal
RWRosa Wang
Rosa Wang
TBTarun Bhagnani
Tarun Bhagnani
TLThomas Lodise
Thomas Lodise
To examine the clinical and economic burdens associated with delayed receipt of appropriate therapy among patients with Gram-negative bacteria (GNB) infections, stratified by antibiotic resistance status. Retrospective analysis using the Premier Hospital Database. Adult admissions (July 2011-September 2014) with evidence of complicated urinary tract infection, complicated intra-abdominal infection, hospital-associated pneumonia, or bloodstream infection, length of stay (LOS) ≥1 days and a positive GNB culture from a site consistent with infection type (culture draw date = index date) were identified and stratified by antibiotic susceptibility to index pathogens. Delayed appropriate therapy was defined as no receipt of antibiotic(s) with relevant microbiological activity on or within 2 days of index date. Inverse probability weighting and multivariate regression analyses were used to estimate the association between delayed appropriate therapy and outcomes. Generalized linear models were used to evaluate postindex duration of antibiotic therapy, LOS and total in-hospital costs. Logistic models were used to evaluate discharge destination and in-hospital mortality/discharge to hospice. A total of 56,357 patients with GNB infections were identified (resistant, n = 6,055; susceptible, n = 50,302). Delayed appropriate therapy was received by 2,800 (46.2%) patients with resistant and 16,585 (33.0%) patients with susceptible infections. Using multivariate analysis, delayed appropriate therapy was associated with worse outcomes including ∼70% increase in LOS, ∼65% increase in total in-hospital costs and ∼20% increase in the risk of in-hospital mortality/discharge to hospice, regardless of susceptibility status. Our results suggest that outcomes in patients with GNB infections, regardless of resistance status, significantly improve if timely appropriate therapy can be provided.

1 February 2008 in Infection Control & Hospital Epidemiology
Verified
Journal Article
Closed access
PDF file
JEJohn Edelsberg
John Edelsberg
ABAriel Berger
Ariel Berger
DWDavid J. Weber
David J. Weber
RMRajiv Mallick
Rajiv Mallick
AKAndreas Kuznik
Andreas Kuznik
GOGerry Oster
Gerry Oster
Objective.: To estimate the consequences of failure of initial antibiotic therapy for patients with complicated skin and skin-structure infections.Design.: Retrospective cohort study.Setting.: Large US multihospital database.Patients.: We identified a total of 47,219 patients (age 18 years or older) who were admitted to the hospital for complicated skin and skin-structure infections from April 1, 2003, through March 31, 2004, and who received intravenous antibiotics during the first 2 hospital-days (ie, initial antibiotic therapy). Failure of therapy was defined as drainage, debridement, or receipt of other intravenous antibiotics at any subsequent time (except for changes to narrower-spectrum agents or any therapy change immediately before discharge). Predictors of failure of antibiotic therapy and mortality were examined using multivariate logistic regression. Analysis of covariance was used to estimate the impact of treatment failure on duration of intravenous antibiotic therapy, length of stay, and total inpatient charges.Results.: For 10,782 admitted patients (22.8%), there was evidence of failure of initial antibiotic therapy. In multivariate analyses, treatment failure was associated with receipt of vasoactive medications during the first 2 hospital-days (odds ratio [OR], 1.66 [95% confidence interval {CI}, 1.19-2.31]), initiation of antibiotic therapy in the intensive care unit (OR, 1.53 [95% CI, 1.28-1.84]), and the patient's Charlson comorbidity index (OR per 1-point increase, 1.06 [95% CI, 1.04-1.08]); treatment failure was also was associated with a 3-fold increase in mortality (OR, 2.91 [95% CI, 2.34-3.62]). Compared with patients for whom initial treatment was successful, patients who experienced treatment failure received intravenous antibiotic therapy for a mean of 5.7 additional days, were hospitalized for a mean of 5.4 additional days, and incurred a mean of $5,285 (in 2003 dollars) in additional inpatient charges (all P <.01).Conclusion.: Failure of initial antibiotic therapy in the treatment of complicated skin and skin-structure infections is associated with significantly worse clinical and economic outcomes.

2 February 2012 in Pain Practice
Verified
Journal Article
Closed access
PDF file
ABAriel Berger
Ariel Berger
LBLisa M. Bloudek
Lisa M. Bloudek
SVSepideh F. Varon
Sepideh F. Varon
GOGerry Oster
Gerry Oster

23 March 2012 in BMC Health Services Research
Verified
Journal Article
Open access
PDF file
KBKevin J Bozic
Kevin J Bozic
BSBrett Stacey
Brett Stacey
ABAriel Berger
Ariel Berger
ASAlesia Sadosky
Alesia Sadosky
GOGerry Oster
Gerry Oster
The purpose of this study was to compare pre- and post-surgical healthcare costs in commercially insured total joint arthroplasty (TJA) patients with osteoarthritis (OA) in the United States (U.S.). Using a large healthcare claims database, we identified patients over age 39 with hip or knee OA who underwent unilateral primary TJA (hip or knee) between 1/1/2006 and 9/30/2007. Utilization of healthcare services and costs were aggregated into three periods: 12 months "pre-surgery," 91 days "peri-operative," and 3 to 15 month "follow-up," Mean total pre-surgery costs were compared with follow-up costs using Wilcoxon signed-rank test. 14,912 patients met inclusion criteria for the study. The mean total number of outpatient visits declined from pre-surgery to follow-up (18.0 visits vs 17.1), while the percentage of patients hospitalized increased (from 7.5% to 9.8%) (both p < 0.01). Mean total costs during the follow-up period were 18% higher than during pre-surgery ($11,043 vs. $9,632, p < 0.01), largely due to an increase in the costs of inpatient care associated with hospital readmissions ($3,300 vs. $1,817, p < 0.01). Pharmacotherapy costs were similar for both periods ($2013 [follow-up] vs. $1922 [pre-surgery], p = 0.33); outpatient care costs were slightly lower in the follow-up period ($4338 vs. $4571, p < 0.01). Mean total costs for the peri-operative period were $36,553. Mean total utilization of outpatient healthcare services declined slightly in the first year following TJA (exclusive of the peri-operative period), while mean total healthcare costs increased during the same time period, largely due to increased costs associated with hospital readmissions. Further study is necessary to determine whether healthcare costs decrease in subsequent years.