PMC25 SENSITIVITY ANALYSIS FOR PROPENSITY SCORE MATCHING

A Propensity Score Matching Analysis

The purpose of this paper is to determine how much is the “bonus” or “prize” to the sales per worker of Internet-using firms compared to not Internet-using firms. The author employs matching techniques based on an Argentinean database. The author first presents a binary logit model, in which the dependent variable is a dichotomous variable equal to 1 if the firm adopted Internet and 0 otherwise...

A population-based propensity score matching analysis

Background: Previous studies suggested an impaired endothelial function in patients with diabetes. However, the validity of this finding may be limited by the lack of adequate adjustment for further cardiovascular confounders. We assessed endothelial function as measured by flow-mediated dilation (FMD) of the brachial artery in patients with either type 1 or type 2 diabetes in comparison with n...

A weighting analogue to pair matching in propensity score analysis.

Propensity score (PS) matching is widely used for studying treatment effects in observational studies. This article proposes the method of matching weights (MWs) as an analog to one-to-one pair matching without replacement on the PS with a caliper. Compared with pair matching, the proposed method offers more efficient estimation, more accurate variance calculation, better balance, and simpler a...

Internet Incidence on SME's Sales: A Propensity Score Matching Analysis

Consequences of Traffic Accidents Transferred by Helicopter and Ground Ambulance: Propensity Score Matching

Introduction: The main task of the emergency medical system is to provide primary care and transfer the injured to a medical center.  Studies have been conducted to investigate the outcome of helicopter and ground ambulance casualties, but they show different results.  These different results may be due to the type of study, statistical methods, differences in pre-hospital emergency systems, an...