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Estimating hospital production functions through flexible regression models

Francisco Reyes Santías, Carmen Cadarso-Suárez, María Xosé Rodríguez-Álvarez
2011 Mathematical and computer modelling  
Background Two models are commonly used in the estimation of hospital production function [1]: the Cobb-Douglas model and the transcendental logarithmic (translog) model.  ...  The Cobb-Douglas model, in contrast, omits this effect, which is less realistic. Thus, most of the hospital production function studies have used this flexible translog function form [1, 3] .  ... 
doi:10.1016/j.mcm.2010.11.087 fatcat:7vt4h7dixzddvdrx44jjo5kta4

Using flexible regression models for calculating hospital's production functions

Francisco Reyes-Santías, Octavio Cordova-Arevalo, Elena Rivo-Lopez
2020 BMC Health Services Research  
It could be interesting to calculate a new flexible hospital production function by means of a GAM including interactions and to compare it with the classic model Cobb-Douglas in the prediction of the  ...  The relative lack of flexibility of parametric models has led to the development of nonparametric regression techniques based on the family of generalized additive models.  ...  One model is commonly used in the estimation of the hospital production function [32] : the Cobb-Douglas model. Cobb-Douglas has been very popular among economists because its calculation is simple.  ... 
doi:10.1186/s12913-020-05465-2 pmid:32650764 fatcat:gnerrw7zvzhbzdwlw6hmzd7sga

Kernel and regression spline smoothing techniques to estimate coefficient in rates model and its application in psoriasis

Freshteh Osmani, Ebrahim Hajizadeh, Parvin Mansouri
2019 Medical Journal of The Islamic Republic of Iran  
Both b-spline and kernel methods were used to estimate time varying coefficients in rates model. Finally, results from methods were compared based on the obtained estimates.  ...  In this study, we applied smoothing methods to estimate coefficients in time-dependent rate model, and we also showed its application in data of psoriasis patients.  ...  Acknowledgments Authors wish to acknowledge their great appreciation for the valuable contribution of Tarbiat Modares University and Dermatology Department of Imam Khomeini hospital to this study.  ... 
doi:10.34171/mjiri.33.90 pmid:31696084 pmcid:PMC6825392 fatcat:xrusx7nv3rhefpvn5y6lqz5g4u

Demand fluctuations, labour flexibility and productivity

Sangwon Park, Natina Yaduma, Andrew J. Lockwood, Allan M. Williams
2016 Annals of Tourism Research  
Numerical, functional and zero-contract hour flexible labour management also contributes to labour productivity.  ...  There is a dearth of studies analysing the relationship between demand variations, productivity and flexible working in the face of variable demand challenges confronting the tourism industry.  ...  To ascertain this variation in productivity, a two-step fixed or random effects model is estimated: first, productivity is regressed on its most significant regressor to give an estimate of the variation  ... 
doi:10.1016/j.annals.2016.04.006 fatcat:z7nmpbr6lveincgpaxrfhnqewq

Comparing the agreement among alternative models in evaluating HMO efficiency

C L Bryce, J B Engberg, D R Wholey
2000 Health Services Research  
The estimates are then regressed against measures of case mix, quality, and other factors that may be related to the model estimates.  ...  A data set containing 585 HMOs operating from 1985 through 1994.  ...  Regression is designed to depict average behavior; for example, a production function estimates the average output, Y, generated from a set of resources, X.  ... 
pmid:10857474 pmcid:PMC1089131 fatcat:e64muydx45gezgrllcsqka7veq

Superbugs versus Outsourced Cleaners

Adam Seth Litwin, Ariel C. Avgar, Edmund R. Becker
2016 Industrial & labor relations review  
Despite the importance of this task, hospitals frequently outsource this function, increasing the likelihood that these workers are under-rewarded, undertrained, and detached from the organization and  ...  Fortunately, the spread of most HAIs can be halted through proper disinfection of surfaces and equipment.  ...  Table 5 . 5 Impact of Employment Arrangements on hospital Readmissions after heart Attack: OLS Regression Estimates Variable Model 1 Model 2 Model 3 Model 4 ln(housekeeping purchased services share  ... 
doi:10.1177/0019793916654482 fatcat:z2ysmleydbfvhdixwqyls3efva

Simulating wait time in healthcare: Accounting for transition process variability using survival analyses

Scott Levin, Maxim Garifullin
2015 2015 Winter Simulation Conference (WSC)  
Embedding regression models for survival data in DES to estimate patient wait times is a method capable of integrating the effects of transition processes with queuing.  ...  These general methods are exhibited in a DES for a large urban hospital with a primary output of wait time in the emergency department (ED) for transfer to an inpatient bed (boarding time).  ...  Input covariates to Cox regression model FINAL SIMULATION RESULTS WITH TRANSITION PROCESS VARIABILITY Incorporating Cox regression-based estimates of boarding time in the hospital DES enabled successful  ... 
doi:10.1109/wsc.2015.7408250 dblp:conf/wsc/LevinG15 fatcat:s35a2jj3d5c3bmckf67newcjbm

Recurrent event frailty models reduced time-varying and other biases in evaluating transfusion protocols for traumatic hemorrhage

Sangbum Choi, Mohammad H. Rahbar, Jing Ning, Deborah J. del Junco, Elaheh Rahbar, Chuan Hong, Jin Piao, Erin E. Fox, John B. Holcomb
2016 Journal of Clinical Epidemiology  
Study Design and Setting-Using the PRospective Observational Multicenter Major Trauma Transfusion (PROMMTT) study data, our joint random effects models estimated the association of 1) clinical covariates  ...  We applied joint recurrent event frailty models to increase validity and clinical utility.  ...  hazards (PH) regression models.  ... 
doi:10.1016/j.jclinepi.2016.03.029 pmid:27134138 pmcid:PMC5086300 fatcat:ywn57u74grcnniuqlspeqvjzuq

Evaluating the Effect of Medical Resident Work-Hour Reform on Hospital Productivity: 80 Hours Work Restriction on Medical Residents

Jose M. Fernandez
2008 Social Science Research Network  
In addition, the model presented in this paper performs better than past models when estimating first-order effects of inputs in the hospital production function.  ...  A weighted 2SLS approach is used to estimate a semi-parametric production function.  ...  First, the model relaxes structural constraints placed upon the estimation of the hospital production function by a fully parameterized model.  ... 
doi:10.2139/ssrn.1128413 fatcat:mhp3n4xwybcctl7dv3yxpc7xre

An empirical study of comparing DEA and SFA methods to measure hospital units' efficiency

George Katharakis, Maria Katharaki, Theofanis Katostaras
2014 International Journal of Operational Research  
The introduced environmental variables were regressed with the bias corrected estimations derived from the first step of the two-stage bootstrap DEA model.  ...  In the Translog SFA functional form, these variables were introduced as shifted. Thirty-two Greek public hospital units constitute the sample.  ...  Investing in knowledge society through the European Social Fund". Moreover, I would like to thank Ms. Theodora Kapsalis for her useful help in editing the paper.  ... 
doi:10.1504/ijor.2014.065413 fatcat:ocfldltttrborfc3vfeuntoer4

Efficiency of U.S. hospitals between 2001 and 2011

Jeong Hoon Choi, Sima M. Fortsch, Imsu Park, Ilyoung Jung
2017 Managerial and Decision Economics  
of hospital efficiency with increasing trend of labor costs.  ...  We applied stochastic frontier (SFA) and data envelope analyses (DEA) methods to capture the efficiency of 1,471 hospitals and found a sign of the Baumol effect which is detected by the decreasing trend  ...  Aigner et al. (1977) and Meeusen and van den Broeck (1977) introduced SFA as a form of production function to estimate productive inefficiency.  ... 
doi:10.1002/mde.2846 fatcat:km24o7bwibgavhmeguxj5ytjie

Safety surveillance and the estimation of risk in select populations: Flexible methods to control for confounding while targeting marginal comparisons via standardization

Xu Shi, Robert Wellman, Patrick J. Heagerty, Jennifer C. Nelson, Andrea J. Cook
2019 Statistics in Medicine  
In this paper, we characterize a three-step procedure, which performs flexible regression adjustment of the estimated PS followed by standardization to estimate the causal effect in a select population  ...  of angioedema, we show that flexible regression on the PS resulted in less bias without loss of efficiency, and can outperform other methods when the PS model is correctly specified.  ...  The Sentinel Coordinating Center is funded by the FDA through the Department of Health and Human Services (HHS) contract HHSF223201400030I.  ... 
doi:10.1002/sim.8410 pmid:31823406 fatcat:qskf7lq42jfedgmqci4wkp3boy

The impact of organizational culture on the outcome of hospital care: After the implementation of person-centred care

Tariq Saleem J. Alharbi, Lars-Eric Olsson, Inger Ekman, Eric Carlström
2013 Scandinavian Journal of Public Health  
Even if the current understanding of organizational culture, which is dominated by flexibility, is considered favourable when implementing a new health care model, our results showed that it could be hindering  ...  instead of helping the new health care model in achieving its objectives.  ...  Acknowledgements We would like to thank a supportive management as well as nurses and patients participating in the study in an anonymous hospital in the western part of Sweden.  ... 
doi:10.1177/1403494813500593 pmid:23960157 fatcat:srqw3y33jjfbzlq2rf47grnkhy

Expanding the statistical toolbox

Rebecca A. Pierce, Justin Lessler, Aaron M. Milstone
2015 Current Opinion in Infectious Diseases  
Poisson regression, survival methods, and mechanistic (mathematical) models remain underutilized.  ...  Additional statistical methodologies are available to build upon risk factor analysis to better inform the process of risk and infection in the hospital setting.  ...  Poisson Regression Poisson regression models can approximate estimates obtained from logistic or log-binomial regression models [17, 18] .  ... 
doi:10.1097/qco.0000000000000179 pmid:26098502 pmcid:PMC4522157 fatcat:4yyhelw5gbg67pkrn32ivrzfvi

Measuring the Cost Impact of Hospital Information Systems: 1987-1994

Ron Borzekowski
2002 Social Science Research Network  
This study measures the impact of information technology (IT) use on hospital operating costs during the late 1980's and early 1990's.  ...  Using a proprietary eight-year panel dataset (1987)(1988)(1989)(1990)(1991)(1992)(1993)(1994) that catalogues application-level automation for the complete census of the 3,000 U.S. hospitals with more  ...  Some of the most recent work on hospital productivity does involve multi-product production functions. As well, both DEA and frontier regression methods have recently been used with cost functions.  ... 
doi:10.2139/ssrn.337980 fatcat:vu73h3ew35ftdeirxrraag2lee
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