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In this paper we propose a method for statistical disclosure limitation of categorical variables that we call Conditional Group Swapping. This approach is suitable for design and strata-defining variables, the cross-classification of which leads to the formation of important groups or subpopulations. These groups are considered important because from the point of view of data analysis it is desirable to preserve analytical characteristics within them. In general data swapping can be quite distorting ([12, 18, 15]), especially for the relationships between the variables not only within the subpopulations but for the overall data. To reduce the damage incurred by swapping, we propose to choose the records for swapping using conditional probabilities which depend on the characteristics of the exchanged records. In particular, our approach exploits the results of propensity scores methodology for the computation of swapping probabilities. The experimental results presented in the paper show good utility properties of the method.
This article was published in the following journal.
Name: Privacy in statistical databases. PSD (Conference : 2004-)
To compare long-term outcomes between robotic and LG approaches using propensity score weighting based on a generalized boosted method to control for selection bias.
To compare the clinical outcome of posterior cruciate ligament (PCL) retention type and PCL substituting type using Advance(®) Medial Pivot (AMP) inner-axis knee prosthesis. A retrospective analysis...
Disclosing HIV status to HIV-positive children is a major challenge facing families and healthcare providers. Despite recommendations for disclosure, rates remain low. We tested whether a pediatric HI...
Multivariable model building for propensity score modeling approaches is challenging. A common propensity score approach is exposure-driven propensity score matching, where the best model selection st...
HIV disclosure benefits people living with HIV (PLWH), their partners, and HIV programs. However, data on the prevalence of disclosure and associated correlates have come largely from patients already...
The study evaluates the impact of vulnerable self-disclosure and perceived responsiveness in individuals across levels of loneliness. Participants will be randomized to a high disclosure o...
In a randomized trial patients hospitalized for myocardial infarction are prospectively enrolled and assigned to either a web-based intensive prevention program or usual care (4 : 1 random...
The purpose of the study is threefold: 1) to develop a home-based emotional disclosure intervention inducing core elements of change (emotional engagement, cognitive restructuring, and pos...
This study will implement an intervention in a two-year randomized controlled trial (RCT) to establish efficacy on viral suppression as a biological endpoint, compare the effectiveness of ...
Specific aims of the 1-year project are to pilot test the disclosure support intervention by (a) evaluating acceptability and feasibility with a preliminary randomized trial among 10 HIV+ ...
Conditional probability of exposure to a treatment given observed covariates.
An anatomic severity scale based on the Abbreviated Injury Scale (AIS) and developed specifically to score multiple traumatic injuries. It has been used as a predictor of mortality.
A method, developed by Dr. Virginia Apgar, to evaluate a newborn's adjustment to extrauterine life. Five items - heart rate, respiratory effort, muscle tone, reflex irritability, and color - are evaluated 60 seconds after birth and again five minutes later on a scale from 0-2, 0 being the lowest, 2 being normal. The five numbers are added for the Apgar score. A score of 0-3 represents severe distress, 4-7 indicates moderate distress, and a score of 7-10 predicts an absence of difficulty in adjusting to extrauterine life.
The protection of genetic information about an individual, family, or population group, from unauthorized disclosure.
An instrument used to assess the results of rehabilitation from knee injuries, especially those requiring ANTERIOR CRUCIATE LIGAMENT RECONSTRUCTION. It measures recovery of knee joint function based on ACTIVITIES OF DAILY LIVING.