scholarly journals Quantifying the Opportunity Cost of Resident Involvement in Academic Orthopaedic Sports Medicine: A Matched-Pair Analysis

2020 ◽  
Vol 36 (3) ◽  
pp. 834-841 ◽  
Author(s):  
Alexander Beletsky ◽  
Yining Lu ◽  
Brandon J. Manderle ◽  
Bhavik H. Patel ◽  
Jorge Chahla ◽  
...  
Keyword(s):  
Opportunity Cost ◽  
Sports Medicine ◽  
Matched Pair ◽  
Matched Pair Analysis ◽  
Resident Involvement ◽  
Pair Analysis

Quantifying the Opportunity Cost of Resident Involvement in Academic Orthopedic Shoulder Arthroplasty: A Matched – Pair Analysis

2022 ◽  
pp. 175857322110654
Author(s):  
Hasani W Swindell ◽  
Alirio J deMeireles ◽  
Jack R Zhong ◽  
Elise C. Bixby ◽  
Bryan M Saltzman ◽  
...  
Keyword(s):  
Shoulder Arthroplasty ◽  
Opportunity Cost ◽  
Operative Time ◽  
Total Shoulder Arthroplasty ◽  
Laboratory Data ◽  
Matched Pair ◽  
Resident Participation ◽  
Matched Pair Analysis ◽  
Resident Involvement ◽  
Mean Differences

Background There is minimal work defining the economic impact of resident participation in shoulder arthroplasty. Thus, this study quantified the opportunity cost of resident participation in total shoulder arthroplasty (TSA) and hemiarthroplasty (HA) by determining differences in operative time, relative value units (RVUs)/hour, and RVUs/case. Methods A retrospective analysis of shoulder arthroplasty procedures were identified from the ACS-NSQIP database from 2006 to 2014 using CPT codes. Demographic, comorbidity, preoperative laboratory data and surgical procedure were used to develop matched cohorts. Mean differences in operative time, RVUs/case and RVUs/hour between attending-only (AO) cases and cases with resident involvement (RI) were examined. Cost analysis was performed to identify differences in RVUs generated per hour in dollars/case. Results A total of 1786 AO and 1102 RI cases were identified. With the exception of PGY-3 and PGY-4 cases, RI cases had lower mean operative times compared to AO cases. The cost of RI was highest for PGY-3 ($199.87 per case) and PGY-4 ($9 .2 9) residents with all other postgraduate years providing a cost reduction. Discussion Involvement of residents was associated with shorter operative times leading to a savings of $29.64 per case. Involvement of intermediate-level (PGY-3) residents were associated with increased costs that ultimately decreased as residents became more senior.

Influence of Images in Online Reviews for Search Goods on Helpfulness

2020 ◽  
Vol 18 (1) ◽  
pp. 43-73
Author(s):  
Lars Osterbrink ◽  
Paul Alpar ◽  
Alexander Seher
Keyword(s):  
Consumer Choice ◽  
Online Reviews ◽  
Potential Interaction ◽  
Matched Pair ◽  
Social Commerce ◽  
Goods And Services ◽  
Matched Pair Analysis ◽  
The Right ◽  
Pair Analysis ◽  
Positive Effect

AbstractReviewing and rating are important features of many social media websites, but they are found on many e-commerce sites too. The combination of social interaction and e-commerce is sometimes referred to as social commerce to indicate that people are supporting each other in the process of buying goods and services. Rgeviews of other consumers have a significant effect on consumer choice because they are usually considered authentic and more trustworthy than information presented by a vendor. The collaborative effort of consumers helps to make the right purchase decision (or prevent from a wrong one). The effect of reviews has often been researched in terms of helpfulness as indicated by their readers. Images are an important factor of helpfulness in reviews of experience goods where personal tastes and use play an important role. We extend this research to search goods where objective characteristics seem to prevail. In addition, we analyze potential interaction with other variables. The empirical study is performed with regression analyses on 3,483 search good reviews from Amazon.com followed by a matched pair analysis of 186 review pairs. We find that images have a significant positive effect on helpfulness of reviews of search goods too. This is especially true in case of short and ambiguous reviews.

410 ILEAL-CONDUIT – VS COLONIC-CONDUIT – A MATCHED-PAIR ANALYSIS

2010 ◽  
Vol 9 (2) ◽  
pp. 150
Author(s):  
R. Stein ◽  
A. Schröder ◽  
T. Hagen ◽  
J.W. Thüroff
Keyword(s):  
Ileal Conduit ◽  
Matched Pair ◽  
Matched Pair Analysis ◽  
Colonic Conduit ◽  
Pair Analysis

Long-term evaluation of oncologic and functional outcomes after laparoscopic open-assisted radical cystectomy: a matched-pair analysis

2014 ◽  
Vol 32 (6) ◽  
pp. 1455-1461 ◽  
Author(s):  
Simone Albisinni ◽  
Ksenija Limani ◽  
Lisa Ingels ◽  
Felix Kwizera ◽  
Renaud Bollens ◽  
...  
Keyword(s):  
Radical Cystectomy ◽  
Functional Outcomes ◽  
Matched Pair ◽  
Matched Pair Analysis ◽  
Term Evaluation ◽  
Pair Analysis

scholarly journals Holmium laser versus thulium laser enucleation of the prostate: a matched-pair analysis from two centers

2018 ◽  
Vol 10 (8) ◽  
pp. 223-233 ◽  
Author(s):  
Giacomo Maria Pirola ◽  
Giovanni Saredi ◽  
Ricardo Codas Duarte ◽  
Lorraine Bernard ◽  
Andrea Pacchetti ◽  
...  
Keyword(s):  
Specific Antigen ◽  
Group Versus ◽  
Holmium Laser ◽  
Matched Pair ◽  
Urinary Flow ◽  
Thulium Laser ◽  
Homogeneous Groups ◽  
Matched Pair Analysis ◽  
Laser Enucleation ◽  
Pair Analysis

Background: The aim of our study was to compare perioperative and functional outcomes of two different prostatic laser enucleation techniques performed in two high-volume centers: 100 W holmium laser enucleation of the prostate (HoLEP) (Lyon, France) and 110 W thulium laser enucleation of the prostate (ThuLEP) (Varese, Italy). Materials and Methods: A nonrandomized, observational, retrospective and matched-pair analysis was performed on two homogeneous groups of 117 patients that underwent prostate laser enucleation in the HoLEP or ThuLEP centers between January 2015 and April 2017, following the classical ‘three lobes’ enucleation technique. The American Society of Anesthesiologists (ASA) score and prostate volume were the main parameters considered for matching the patients between the two groups. Patients on anticoagulant therapy, with documented detrusor hypoactivity or hyperactivity or with the finding of concurrent prostate cancer were excluded from the study. Follow up was assessed at 3, 6 and 12 months after surgery. Results: Median enucleation and morcellation time was 75.5 and 11.5 min, respectively, in the HoLEP group versus 70.5 and 12 min, respectively, in the ThuLEP group ( p = 0.001 and 0.49, respectively). Enucleated adenoma weight was comparable (44 g versus 45.6 g, p = 0.60). Energy index (3884.63 versus 4137.35 J/g, p = 0.30) and enucleation index (0.57 versus 0.6 g/min, p = 0.81) were similar in the two groups. Catheterization time was comparable (1 versus 1 day; p = 0.14). The International Prostate Symptom Score and Quality of Life score significantly decreased, as well as maximal urinary flow rate. Median prostate-specific antigen (PSA) drop 1 year after surgery was 2.1 ng/ml in the HoLEP group (−52.83%) versus 1.75 ng/ml in the ThuLEP group (−47.85%) ( p = 0.013). Conclusion: Both HoLEP (100 W) and ThuLEP (110 W) relieve lower urinary tract symptoms in a comparable way with high efficacy and safety, with negligible clinical differences.

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