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Alexandra F. Dalton
Researcher at University of Colorado Denver
Publications - 20
Citations - 595
Alexandra F. Dalton is an academic researcher from University of Colorado Denver. The author has contributed to research in topics: Medicine & Internal medicine. The author has an hindex of 5, co-authored 9 publications receiving 58 citations. Previous affiliations of Alexandra F. Dalton include University of Colorado Boulder & University of North Carolina at Chapel Hill.
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Journal ArticleDOI
Waning 2-Dose and 3-Dose Effectiveness of mRNA Vaccines Against COVID-19–Associated Emergency Department and Urgent Care Encounters and Hospitalizations Among Adults During Periods of Delta and Omicron Variant Predominance — VISION Network, 10 States, August 2021–January 2022
Jill M. Ferdinands,S. Rao,Brian E. Dixon,Patrick K. Mitchell,Malini B. DeSilva,Stephanie A. Irving,Ned Lewis,Karthik Natarajan,Edward Stenehjem,Shaun J. Grannis,Jungmi Han,Charlene McEvoy,Toan C. Ong,Allison L. Naleway,Sara E. Reese,Peter J. Embi,Kristin Dascomb,Nicola P. Klein,E. Griggs,D. Konatham,Anupam B. Kharbanda,Duck-Hye Yang,William F. Fadel,Nancy Grisel,Kristin Goddard,Palak Patel,I-Chia Liao,Rebecca Birch,Nimish Valvi,Sue Reynolds,Julie Arndorfer,Ousseny Zerbo,M. Dickerson,Kempapura Murthy,Jeremiah Williams,Catherine H Bozio,Lenee Blanton,Jennifer R. Verani,Stephanie J. Schrag,Alexandra F. Dalton,Mehiret Wondimu,Ruth Link-Gelles,Eduardo Azziz-Baumgartner,Michelle A. Barron,Manjusha Gaglani,Mark Thompson,Bruce Fireman +46 more
TL;DR: VE after receipt of a third dose was higher than that after a second dose; however, VE waned with increasing time since vaccination, and VE was generally higher for protection against hospitalizations than against ED/UC visits.
Journal ArticleDOI
Effectiveness of COVID-19 Pfizer-BioNTech BNT162b2 mRNA Vaccination in Preventing COVID-19–Associated Emergency Department and Urgent Care Encounters and Hospitalizations Among Nonimmunocompromised Children and Adolescents Aged 5–17 Years — VISION Network, 10 States, April 2021–January 2022
Nicola P. Klein,Melissa S. Stockwell,Maria Demarco,Manjusha Gaglani,Anupam B. Kharbanda,Stephanie A. Irving,S. Rao,Shaun J. Grannis,Kristin Dascomb,Kempapura Murthy,Elizabeth Rowley,Alexandra F. Dalton,Malini B. DeSilva,Brian E. Dixon,Karthik Natarajan,Edward Stenehjem,Allison L. Naleway,Ned Lewis,Toan C. Ong,Palak Patel,D. Konatham,Peter J. Embi,Sara E. Reese,Jungmi Han,Nancy Grisel,Kristin Goddard,Michelle A. Barron,M. Dickerson,I-Chia Liao,William F. Fadel,Duck-Hye Yang,Julie Arndorfer,Bruce Fireman,E. Griggs,Nimish Valvi,C. Hallowell,Ousseny Zerbo,Sue Reynolds,Jill M. Ferdinands,Mehiret Wondimu,Jeremiah Williams,Catherine H Bozio,Ruth Link-Gelles,Eduardo Azziz-Baumgartner,Stephanie J. Schrag,Mark Thompson,Jennifer R. Verani +46 more
TL;DR: VE against laboratory-confirmed COVID-19-associated hospitalization among children aged 5-11 years was 74% 14-67 days after dose 2, with wide CIs that included zero, and in adolescents aged 16-17 years, VE during the Omicron predominant period increased to 81% ≥7 days after a third booster dose.
Journal ArticleDOI
Effectiveness of Homologous and Heterologous COVID-19 Booster Doses Following 1 Ad.26.COV2.S (Janssen [Johnson & Johnson]) Vaccine Dose Against COVID-19–Associated Emergency Department and Urgent Care Encounters and Hospitalizations Among Adults — VISION Network, 10 States, December 2021–March 2022
Karthik Natarajan,Namrata Prasad,Kristin Dascomb,Stephanie A. Irving,Duck-Hye Yang,Manjusha Gaglani,Nicola P. Klein,Malini B. DeSilva,Toan C. Ong,Shaun J. Grannis,Edward Stenehjem,Ruth Link-Gelles,Elizabeth Rowley,Allison L. Naleway,Jungmi Han,Chandni Raiyani,Gabriela Vazquez Benitez,S. Rao,Ned Lewis,William F. Fadel,Nancy Grisel,E. Griggs,M. Dunne,Melissa S. Stockwell,Mufaddal Mamawala,Charlene McEvoy,Michelle A. Barron,Kristin Goddard,Nimish Valvi,Julie Arndorfer,Palak Patel,Patrick K. Mitchell,Michael E. Smith,Anupam B. Kharbanda,Bruce Fireman,Peter J. Embi,M. Dickerson,Jonathan M. Davis,Ousseny Zerbo,Alexandra F. Dalton,Mehiret Wondimu,Eduardo Azziz-Baumgartner,Catherine H Bozio,Sue Reynolds,Jill M. Ferdinands,Jeremiah Williams,Stephanie J. Schrag,Jennifer R. Verani,Sarah Ball,Mark Thompson,Brian E. Dixon +50 more
TL;DR: All booster strategies provided higher protection than a single Janssen dose against ED/UC visits and hospitalizations during Omicron variant predominance and was comparable to protection provided by 3 mRNA doses during the first 120 days after a booster dose.
Journal ArticleDOI
Patient characteristics associated with favorable perceptions of patient-provider communication in early-stage lung cancer treatment
Alexandra F. Dalton,Audrina Jones Bunton,Samuel Cykert,Giselle Corbie-Smith,Peggy Dilworth-Anderson,Franklin R. McGuire,Michael H. Monroe,Paul R. Walker,Lloyd J. Edwards +8 more
TL;DR: The fact that patient perception of communication is a predictor of the decision to undergo surgery independent of race highlights the need for broad communication interventions to ensure that as many eligible patients as possible are receiving surgery.
Journal ArticleDOI
Relationship between Physicians’ Uncertainty about Clinical Assessments and Patient-Centered Recommendations for Colorectal Cancer Screening in the Elderly
Alexandra F. Dalton,Carol E. Golin,Denise Esserman,Michael Pignone,Donald E. Pathman,Carmen L. Lewis +5 more
TL;DR: It is demonstrated that when the results of clinical assessments do not lead to obvious screening decisions or when physicians feel uncertain about their clinical assessments, they are more likely to make patient-centered recommendations.