Asset Details
Do you wish to reserve the book?
Matching on provider is risky
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Matching on provider is risky
Do you wish to request the book?
Matching on provider is risky
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Matching on provider is risky
2013
Overview
To illustrate that matching on provider may exacerbate, not remove, bias.
The degree of confounding bias depends in part on the proportions of treatment variation that can be ascribed to confounders and to instruments, respectively. This commentary raises the specific example of bias by matching on hospital induced in a study of coronary artery bypass graft surgery patients and illustrates the effect of matching on provider in a constructed example.
Matching on provider removes a “benign” source of treatment variability, leaving unmeasured confounders as potentially the most important determinants of treatment.
Researchers need to articulate the presumed source of pseudorandom variation in observational studies and need to take care not to reduce their effect through unnecessary control.
Publisher
Elsevier Inc,Elsevier Limited
Subject
Aminocaproates - administration & dosage
/ Aminocaproates - therapeutic use
/ Aprotinin - administration & dosage
/ Bias
/ Comparative effectiveness research
/ Comparative Effectiveness Research - methods
/ Confounding Factors (Epidemiology)
/ Coronary Artery Bypass - methods
/ Coronary Artery Bypass - mortality
/ Data Interpretation, Statistical
/ Hemostatics - administration & dosage
/ Hemostatics - therapeutic use
/ Humans
/ Matching
/ Patients
/ Randomized Controlled Trials as Topic
/ Studies
/ Z-bias
