Comparative effectiveness of standard endotracheal tubes vs. endotracheal tubes with continuous subglottic suctioning on ventilator-associated pneumonia rates

Ventilator-associated pneumonia (VAP) accounts for the majority of nosocomial pneumonias, which may increase intensive care and prolonged hospital stays. Endotracheal tubes allowing continuous subglottic suctioning may reduce VAP; however, they are more expensive than standard endotracheal tubes not allowing continuous suctioning. he objective of this study was to measure the comparative costs associated with continuous subglottic suctioning endotracheal tubes (CSS-ETT) versus standard endotracheal tubes (S-ETT) among intubated patients and whether cost differential is offset by the occurrence of VAP in patients receiving either type of intubation. A retrospective chart review was conducted for 154 intubated adult patients (77 = S-ETT; 77 = CSS-ETT). The S-ETT group had one case of VAP; the CSS-ETT group had none. The mean total hospital charges were higher for the S-ETT group ($103,600; CSS-ETT= $88,500) (p = 0.3). Although the average number of intubation days and ICU days were greater for the CSS-ETT group, there were no cases of VAP compared to the S-ETT group. ased upon the one S-ETT VAP case and the VAP attributable costs, it is cost effective to use the CSS-ETT.     

VOLUNTARY DISCLOSURE OF SEGMENT INFORMATION: FURTHER AUSTRALIAN EVIDENCE

This study provides further empirical evidence on incentives for Australian firms to voluntarily report segment information. Various economic reasons why firms may elect to present segment information have been hypothesised in previous research. Bradbury [1992] and McKinnon and Dalimunthe [1993] found firm size, minority interest and industry membership as significant identifiable characteristics motivating voluntary segmental disclosure. Variables found to be insignificant in Bradbury [1992] which were not examined by McKinnon and Dalimunthe [1993] are tested in this paper. Hypotheses relating to size, financial leverage, assets-in-place, earnings volatility, ownership diffusion, outside equity (minority) interest, overseas association as well as diverse and mining and oil classification hypotheses are empirically examined. Univariate tests and multivariate logit analysis suggest that for a extensive sample of diversified firms, voluntary segment disclosure is significantly related to size, leverage and involvement in mining or oil activities.     

Bias-corrected estimates of reduction of post-surgery length of stay and corresponding cost savings through the widespread national implementation of fast-tracking after liver transplantation: a quasi-experimental study

Background: Fast-tracking is an approach adopted by Mayo Clinic in Florida’s (MCF) liver transplant (LT) program, which consists of early tracheal extubation and transfer of patients to surgical ward, eliminating a stay in the intensive care unit in select patients. Since adopting this approach in 2002, MCF has successfully fast-tracked 54.3% of patients undergoing LT.

Objectives: This study evaluated the reduction in post-operative length of stay (LOS) that resulted from the fast-tracking protocol and assessed the potential cost saving in the case of nationwide implementation.

Methods: A propensity score for fast-tracking was generated based on MCF liver transplant databases during 2011–2013. Various propensity score matching algorithms were used to form control groups from the United Network of Organ Sharing Standard Analysis and Research (STAR) file that had comparable demographic characteristics and health status to the treatment group identified in MCF. Multiple regression and matching estimators were employed for evaluation of the post-surgery LOS. The algorithm generated from the analysis was also applied to the STAR data to determine the proportion of patients in the US who could potentially be candidates for fast-tracking, and the potential savings.

Results: The effect of the fast-tracking on the post-transplant LOS was estimated at approximately from 2.5 (p-value?=?0.001) to 3.2 (p-value?Conclusion: The fast-track program was found to be effective in reducing post-transplant LOS, although the reduction appeared to be less than previously reported. Nationwide implementation of fast-tracking could result in substantial cost savings without compromising the patient outcome.     

DIMENSIONALITY AND DISAGREEMENT: ASYMPTOTIC BELIEF DIVERGENCE IN RESPONSE TO COMMON INFORMATION

We provide a model of boundedly rational, multidimensional learning and characterize when beliefs will converge to the truth. Agents maintain beliefs as marginal probabilities instead of joint probabilities, and agents' information is of lower dimension than the model. As a result, for some observations, agents may face an identification problem affecting the role of data in inference. Beliefs converge to the truth when these observations are rare, but beliefs diverge when observations presenting an identification problem are frequent. Robustly, two agents with differing priors who observe identical, unambiguous information may disagree forever, with stronger disagreement the more information received.     

Compliance Costs of Corporate Income Taxation in Singapore

This study is the second in a series of studies investigating tax compliance costs incurred by public-listed companies. We found evidence of a size effect which is a predominant finding of similar studies. The size effect was more pronounced when absolute measures of costs were used than when a relative measure, cost/sales turnover, was used. Additional evidence was found of limited success relating to the IRAS's moves to simplify the tax system. Specifically, only large companies with sales turnover exceeding $500m benefited and considerably reduced their overall compliance costs. Most of the decrease was a result of the computational component of compliance costs. This resulted in the gap in absolute costs narrowing between Group 3 and any of the other categories of companies. There was also greater reliance on external professionals, the smaller the company. Views elicited indicate that more could be done to increase accessibility to IRAS publications for Group 1 and Group 2 companies.     

Poison Pill Securities: Shareholder Wealth and Insider Trading

Existing empirical studies on poison pill securities have examined their overall effect on shareholder wealth. This paper segregates the wealth-increasing poison pills from the value-reducing ones by examining the pattern of insider trading activity prior to the pill adoption announcement. Our results show that pill adoptions that are preceded by net insider purchases are associated with significant stock price increases. This finding is consistent with the proposition that corporate insiders buy their own securities because they do not view the adoption of poison pills as an antitakeover strategy, but rather one that enables the board of directors to extract a greater share of the economic gains from the bidder. Our findings also indicate that firms with net insider sales prior to pill adoption announcement experience generally negative but insignificant changes in value. Finally, firms with no insider trading or with an equal number of insider purchases and sales register marginally significant negative returns.     

Commitment and conflict in the restaurant industry: Perceptions from the Generation Y viewpoint

This study investigates Generation Y restaurant employees’ perceptions of conflict and the extent to which the presence of management team conflict influences employee organizational commitment. Regression analysis found that perceptions of task and process conflict negatively impact organizational commitment, while relationship conflict was not found to have a statistically significant impact on organizational commitment. This study represents the first attempt to understand the carryover effects of management team conflict on employees and offers insights into the perceptions of the Generation Y restaurant worker. Theoretical and managerial implications of the empirical findings as well as directions for future research are discussed.     

The Impact of Accounting Earnings Disclosures on Stock Prices in Singapore

This paper reports the relationship between earnings and share prices. The results show that unexpected earnings changes are significantly associated with share price changes. However, the strength of the earnings effect is not as pronounced as those reported in the more analytically-intensive developed stock markets. The results are adjusted for risk differences by using a non-synchronous correction procedure to remove thin-trading bias.     

Critical success factors in relationship management for services outsourcing

This study examines the relationship between outsourcing motives, supplier–customer relationship and perceived customer value in non-core services outsourcing. 1,757 companies were randomly selected. 234 valid questionnaires were returned (13.4 % response rate). The structural equation method was used to obtain the best fit model. The most significant contribution of this study is that ‘relationship interaction’ (communication, cooperation, coordination, collaboration, conflict resolution and integration activities) has a greater impact on customer perceived value than ‘relationship quality’ (loyalty and trust) in services outsourcing. The perceived customer value is reflected in improved services quality, reliability and agility rather than the expected cost savings.