When a strict subset of covariates is given, we propose conditional quantile treatment effect ( C Q T E ) to offer, compared with the unconditional and average A ), more complete informative view heterogeneity effects via sheet that function given levels. Even though either one or both are not significant, could still show some impact on upper lower tails subpopulations' (defined by subset) dis...

IMPORTANCE The Wells score to determine the pretest probability of deep vein thrombosis (DVT) was validated in outpatient settings, but it is unclear whether it applies to inpatients. OBJECTIVE To evaluate the utility of the Wells score for risk stratification of inpatients with suspected DVT. DESIGN, SETTING, AND PARTICIPANTS A prospective study was conducted in a 793-bed quaternary care, ...

background:  clavicle fractures are common and usually heal without complications. in this study, we evaluated the outcomes of non-operative versus operative management of displaced fractures.   methods:  in a prospective clinical trial study, sixty-five patients with displaced clavicle mid-shaft fractures were nonrandomly divided in two treatment groups. the first group underwent non-operative...

BACKGROUND The new round of Healthcare Reform in China has implemented over 3 years since 2009, and promoted greatly the development of public county hospitals. The purpose of this study is to evaluate county hospitals efficiency before and after the healthcare reform, and further assess the reform effectiveness through the comparative analysis of the efficiency. METHODS Data envelopment anal...

Supplier evaluation is an important process in supply chain. To our best knowledge, we firstly report a study on supplier classification problem for efficiency and performance in the meanwhile, which is to aim at reducing the risk of enterprises and finding the suppliers with both high efficiency and performance. This paper proposed an integrated model, which hybridized data envelopment analysi...

R estimators based on the joint ranks (JR) of all the residuals have been developed over the last twenty years for fitting linear models with independently distributed errors. In this paper, we extend these estimators to estimating the fixed effects in a linear model with cluster correlated continuous error distributions for general score functions. We discuss the asymptotic theory of the estim...