Michelle Elana Ross
VerifiedUniversity of Pennsylvania · Rehabilitation Medicine
Active 1973–2025
Research topics
- Medicine
- Family medicine
- Psychology
- Political Science
- Sociology
- Environmental health
- Nursing
- Gender studies
- Socioeconomics
- Medical education
- Economic growth
- Internal medicine
- Criminology
- Psychiatry
- Law
- Clinical psychology
- Psychotherapist
- Biology
- Gynecology
- Social psychology
Selected publications
Clinical Nurse Specialist · 2025-02-18 · 1 citations
articlePURPOSE: Central line-associated bloodstream infection (CLABSI) rates have been consistently high at an academic comprehensive cancer hospital. CLABSI prevention bundles can mitigate central line infections, and many components focus on nursing practice. Identification of barriers to maintaining adherence to these elements is not always assessed or addressed. The purpose of this project was to increase adherence to CLABSI prevention nursing practices and to implement a sustainable program to elevate nurses' skills and documentation of CLABSI prevention bundle components. DESCRIPTION: Pre-implementation/post-implementation chart reviews, post-implementation visual audits, and a survey for nurses post project were completed over a 9-week period. This project identified and addressed barriers to CLABSI prevention bundle compliance. Audits assessed nursing practice elements of the CLABSI prevention bundle. Evidence-based Kamishibai cards (K-cards) were used as a visual audit tool to display compliance of CLABSI bundle elements. OUTCOMES: Compliant documentation of daily chlorhexidine gluconate (CHG) bathing increased to 75%. Inconsistent communication practices and knowledge gaps were frequent barriers to compliance. Seventy-five percent of nurses reported the K-card display changed their own CLABSI prevention practices. CONCLUSION: This project increased knowledge, adherence to CLABSI prevention practices, and awareness of components most often missed.
Describing Patterns of Drug Use and Service Delivery at Supervised Consumption Sites in Canada
Drug and Alcohol Dependence · 2025-02-01
articleSenior authorSSRN Electronic Journal · 2025-01-01
preprintOpen accessSenior authorSurvival analysis under imperfect record linkage using historic census data
BMC Medical Research Methodology · 2024-03-13 · 1 citations
articleOpen accessBACKGROUND: Advancements in linking publicly available census records with vital and administrative records have enabled novel investigations in epidemiology and social history. However, in the absence of unique identifiers, the linkage of the records may be uncertain or only be successful for a subset of the census cohort, resulting in missing data. For survival analysis, differential ascertainment of event times can impact inference on risk associations and median survival. METHODS: We modify some existing approaches that are commonly used to handle missing survival times to accommodate this imperfect linkage situation including complete case analysis, censoring, weighting, and several multiple imputation methods. We then conduct simulation studies to compare the performance of the proposed approaches in estimating the associations of a risk factor or exposure in terms of hazard ratio (HR) and median survival times in the presence of missing survival times. The effects of different missing data mechanisms and exposure-survival associations on their performance are also explored. The approaches are applied to a historic cohort of residents in Ambler, PA, established using the 1930 US census, from which only 2,440 out of 4,514 individuals (54%) had death records retrievable from publicly available data sources and death certificates. Using this cohort, we examine the effects of occupational and paraoccupational asbestos exposure on survival and disparities in mortality by race and gender. RESULTS: We show that imputation based on conditional survival results in less bias and greater efficiency relative to a complete case analysis when estimating log-hazard ratios and median survival times. When the approaches are applied to the Ambler cohort, we find a significant association between occupational exposure and mortality, particularly among black individuals and males, but not between paraoccupational exposure and mortality. DISCUSSION: This investigation illustrates the strengths and weaknesses of different imputation methods for missing survival times due to imperfect linkage of the administrative or registry data. The performance of the methods may depend on the missingness process as well as the parameter being estimated and models of interest, and such factors should be considered when choosing the methods to address the missing event times.
The Auk · 2024-09-25 · 4 citations
articleABSTRACT Species classified as “urban-adapters” are often assumed to thrive in cities because they are commonly found across the urbanization gradient. However, urban-living populations of many urban-adapted species have been found to have lower reproductive success relative to their rural counterparts. Sturnus vulgaris (European Starling) is a common urban-adapted species found across most of the globe. While S. vulgaris have lowered reproductive success in urban areas in their native range, less is known about how urbanization impacts reproduction in their invasive ranges. We tested for differences in reproductive investment and success across urban and rural S. vulgaris populations in Georgia, which is part of their North American invasive range. We found few differences in reproductive output for urban vs. rural S. vulgaris—clutch size, egg mass, egg volume, incubation behavior, provisioning rates, brooding behavior, and nestling wing chord were all similar across S. vulgaris populations from more urban and more rural study sites. Although urban birds produced a higher number of hatchlings and rural birds produced young in higher body condition, neither of these factors influenced reproductive success because the number of fledglings produced were similar for urban and rural breeding S. vulgaris. Overall, S. vulgaris in their invasive range performed similarly well in more urban vs. more rural habitats. Future work should explore whether urbanization affects other components of fitness in starlings (e.g., adult survival).
Herpetologica · 2024-04-18 · 2 citations
articleStudies of reproductive behavior can help reveal patterns of sexual isolation and clarify species boundaries. In northern Georgia, Blue Ridge Two-lined Salamanders (Eurycea cf. wilderae) and Brown-backed Salamanders (Eurycea aquatica) are syntopic but do not hybridize. Within this region, Eurycea cf. wilderae males exhibit a reproductive polymorphism, with “searching” males that appear adapted for terrestrial courtship and “guarding” males that appear adapted for aquatic mate-guarding. To understand better how inter- and intraspecific reproductive variation might contribute to sexual isolation between E. aquatica and E. cf. wilderae, we staged T-maze trials and courtship trials, and we conducted preliminary analyses of sex hormones from noninvasive fecal samples. We found that males of both species preferred conspecific female scents to heterospecific female scents, but that searching male E. cf. wilderae were not better than guarding males at locating a conspecific female scent. We also found evidence for strong propensity asymmetry, with male and female E. cf. wilderae much more likely than E. aquatica to engage in courtship behaviors in the lab. Still, we observed some instances of heterospecific courtship through spermatophore transfer. Finally, we found evidence for higher fecal testosterone concentrations in males than females and higher concentrations in guarding male than in searching male E. cf. wilderae. Together, our data provide further insight into the reproductive ecologies of and the nature of reproductive isolation between Eurycea aquatica and Eurycea cf. wilderae.
Outpatient Management of Coronary Artery Disease
2023-01-01 · 1 citations
book-chapter1st authorCorrespondingContemporary Clinical Trials · 2023-06-15 · 6 citations
articleOpen accessACS Non-ST Elevation Myocardial Infarction (NSTEMI)
2023-01-01 · 2 citations
book-chapter1st authorCorrespondingThe Science of The Total Environment · 2023-12-02 · 4 citations
article1st author
Recent grants
NIH · $360k · 2013
NIH · $223k · 2006
Frequent coauthors
- 106 shared
B. R. Simon Rosser
University of Minnesota
- 62 shared
Alex Wodak
St Vincent's Hospital Sydney
- 57 shared
Mark L. Williams
University of Arkansas for Medical Sciences
- 42 shared
Julian Gold
Princeton University
- 40 shared
Nidhi Kohli
University of Minnesota
- 40 shared
Dean W. Richardson
University of Pennsylvania
- 38 shared
Sandra C. Timpson
The University of Texas Health Science Center at Houston
- 36 shared
Rigmor C. Berg
Norwegian Institute of Public Health
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