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Useful Evidence (useful + evidence)

Distribution by Scientific Domains

Medical Sciences	50%

Selected Abstracts

A measure of disclosure risk for microdata

JOURNAL OF THE ROYAL STATISTICAL SOCIETY: SERIES B (STATISTICAL METHODOLOGY), Issue 4 2002
C. J. Skinner
Summary. Protection against disclosure is important for statistical agencies releasing microdata files from sample surveys. Simple measures of disclosure risk can provide useful evidence to support decisions about release. We propose a new measure of disclosure risk: the probability that a unique match between a microdata record and a population unit is correct. We argue that this measure has at least two advantages. First, we suggest that it may be a more realistic measure of risk than two measures that are currently used with census data. Second, we show that consistent inference (in a specified sense) may be made about this measure from sample data without strong modelling assumptions. This is a surprising finding, in its contrast with the properties of the two ,similar' established measures. As a result, this measure has potentially useful applications to sample surveys. In addition to obtaining a simple consistent predictor of the measure, we propose a simple variance estimator and show that it is consistent. We also consider the extension of inference to allow for certain complex sampling schemes. We present a numerical study based on 1991 census data for about 450 000 enumerated individuals in one area of Great Britain. We show that the theoretical results on the properties of the point predictor of the measure of risk and its variance estimator hold to a good approximation for these data. [source]

Evidence based medicine methods (part 2): extension into the clinical area

PEDIATRIC ANESTHESIA, Issue 11 2007
RALPH JAMES MACKINNON FRCA
Summary The principles of evidence-based medicine (EBM) applied to pediatric anesthesia could result in a potent educational tool. At present there is a limited structured evidence base to pediatric anesthesia. However, the wide array of pediatric anesthetic research and clinical practice itself are well suited to the principles of EBM. Best evidence topics could be considered the starting point for a potentially extremely useful evidence-based pediatric anesthesia database. [source]

How results are presented (2): risks, ratios, NNT and NNH

PRESCRIBER, Issue 8 2007
Article first published online: 23 JUL 200
Our series on Information mastery is based on the MeReC Briefing Using Evidence to Guide Practice. The articles will address how to source the most useful evidence on the efficacy of interventions and explain some of the concepts used in its interpretation. Copyright © 2007 Wiley Interface Ltd [source]

Is Under-Employment due to Labour Hoarding?

THE ECONOMIC RECORD, Issue 246 2003
Evidence from the Australian Workplace Industrial Relations Survey
In this paper, Australian data are used to study the characteristics of workers who are constrained in their hours of work. Matched employer,employee data allow us to control for their employers' characteristics as well. In particular, the information on the firms' state of demand provides useful evidence on the underlying cause of under-employment. The labour hoarding model cannot explain the observed patterns involving under-employment. Alternative explanations are offered. [source]