In many current practical applications, the probability of collision is often considered as the most meaningful criterion for determining the risk to a spacecraft. However, when the miss distance is very small (say 100 m or less), the collision probability may not comfortably serve well as the only metric for measuring the risk. In these cases, it is also important to know the statistics of the...

UNLABELLED A retrospective chart review was conducted to determine the effect of alpha-Interferon (alpha-IFN) on disease progression, symptom palliation, and survival in HIV-associated Progressive Multifocal Leukoencephalopathy (PML). METHODS Subjects were HIV seropositive patients diagnosed with PML at the Johns Hopkins Hospital between 1985 and July of 1986. Diagnostic criteria for PML incl...

BACKGROUND To determine the frequency of Medicaid mandated blood lead level (BLL) screening compliance rates by clinical site. METHODS Retrospective chart review for evidence of BLLs. Data analyses were conducted using frequencies, percentages & chi-square. RESULTS The overall incidence of documented BLLs was 78.9% with one clinic demonstrating 100% BLLs while the others had 72%. Screening ...

Surveys are used by hospitals to evaluate patient satisfaction and to improve general hospital operations. Collected satisfaction data is usually represented to the hospital administration by using statistical charts and graphs. Although such visualization is helpful, typically no deeper data analysis is performed to identify important factors which contribute to patient satisfaction. This work...

Pie charts and their variants are prevalent in business settings and many other uses, even if they are not popular with the academic community. In a recent study, we found that contrary to general belief, there is no clear evidence that these charts are read based on the central angle. Instead, area and arc length appear to be at least equally important. In this paper, we build on that study to...

OBJECTIVE To assess whether outcomes of strabismus surgery are improved by using the adjustable suture technique and to determine which subgroups of strabismus patients benefit most from the adjustable suture technique. DESIGN A retrospective chart review. PARTICIPANTS A total of 535 adults who underwent strabismus surgery between 1989 and 2010. METHODS Success was defined as ≤10 prism di...

AIM To compare and contrast the characteristics and clinical outcomes of patients who have received daptomycin as outpatients and inpatients. METHODS The Cubicin Outcomes Registry and Experience (CORE) is a retrospective chart review of patients who have received daptomycin in participating institutions. Patients treated in 2005 were included in this analysis. Demographic characteristics and ...

The local model for differential privacy is emerging as the reference model for practical applications of collecting and sharing sensitive information while satisfying strong privacy guarantees. In the local model, there is no trusted entity which is allowed to have each individual’s raw data as is assumed in the traditional curator model for differential privacy. Individuals’ data are usually ...