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K. Nichol · SciRah

Researcher profile · Semantic Scholar

K. Nichol

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K. Nichol — researcher profile on SciRah

h-index: 60
Works: 156
Citations: 14K

Most-cited papers

Influenza vaccination and reduction in hospitalizations for cardiac disease and stroke among the elderly.
K. Nichol, J. Nordin, J. Mullooly, R. Lask +2 more
2003New England Journal of Medicine780 citations Open access
Semantic Scholar
Effectiveness of influenza vaccine in the community-dwelling elderly.
K. Nichol, J. Nordin, D. Nelson, J. Mullooly +1 more
2007New England Journal of Medicine660 citations Open access
Semantic Scholar
Barriers to adult immunization.
David R. Johnson, K. Nichol, K. Lipczynski
2008American Journal of Medicine388 citations Open access
Semantic Scholar
Half- vs full-dose trivalent inactivated influenza vaccine (2004-2005): age, dose, and sex effects on immune responses.
R. Engler, M. R. Nelson, M. Klote, M. Vanraden +7 more
2008Archives of Internal Medicine322 citations
Semantic Scholar
The efficacy, effectiveness and cost-effectiveness of inactivated influenza virus vaccines.
K. Nichol
2003Vaccine291 citations
Semantic Scholar
Vaccines for seasonal and pandemic influenza.
K. Nichol, J. Treanor
2006Journal of Infectious Diseases251 citations Open access
Semantic Scholar
Influence of high-risk medical conditions on the effectiveness of influenza vaccination among elderly members of 3 large managed-care organizations.
E. Hak, J. Nordin, Feifei Wei, J. Mullooly +3 more
2002Clinical Infectious Diseases249 citations Open access
Semantic Scholar
Colds and influenza-like illnesses in university students: impact on health, academic and work performance, and health care use.
K. Nichol, Sarah D. Heilly, E. Ehlinger
2005Clinical Infectious Diseases172 citations
Semantic Scholar
Cost benefit of influenza vaccination in healthy, working adults: an economic analysis based on the results of a clinical trial of trivalent live attenuated influenza virus vaccine.
K. Nichol, K. Mallon, P. Mendelman
2003Vaccine159 citations
Semantic Scholar
Confounding by indication in non-experimental evaluation of vaccine effectiveness: the example of prevention of influenza complications
E. Hak, T. Verheij, D. Grobbee, K. Nichol +1 more
2002Journal of Epidemiology and Community Health150 citations Open access
Semantic Scholar
Efficacy and effectiveness of influenza vaccination.
K. Nichol
2008Vaccine136 citations
Semantic Scholar
Non-Traditional Settings for Influenza Vaccination of Adults
L. Prosser, Megan A. O'Brien, Noelle-Angelique M. Molinari, K. Hohman +3 more
2012PharmacoEconomics (Auckland)134 citations
Semantic Scholar
Influenza control in the 21st century: Optimizing protection of older adults.
A. Monto, F. Ansaldi, R. Aspinall, J. McElhaney +5 more
2009Vaccine128 citations
Semantic Scholar
Association of Influenza-like Illness Activity With Hospitalizations for Heart Failure: The Atherosclerosis Risk in Communities Study
Sonja Kytömaa, Sheila M. Hegde, B. Claggett, J. Udell +6 more
2019JAMA cardiology124 citations Open access
Semantic Scholar
Safety, efficacy, and effectiveness of live, attenuated, cold-adapted influenza vaccine in an indicated population aged 5-49 years.
R. Belshe, K. Nichol, S. Black, H. Shinefield +5 more
2004Clinical Infectious Diseases124 citations
Semantic Scholar
Effect of High-Dose Trivalent vs Standard-Dose Quadrivalent Influenza Vaccine on Mortality or Cardiopulmonary Hospitalization in Patients With High-risk Cardiovascular Disease: A Randomized Clinical Trial.
O. Vardeny, KyungMann Kim, J. Udell, Jacob Joseph +23 more
2020Journal of the American Medical Association (JAMA)121 citations Open access
Semantic Scholar
Sensitivity analyses to estimate the potential impact of unmeasured confounding in causal research.
R. Groenwold, D. Nelson, K. Nichol, A. Hoes +1 more
2010International Journal of Epidemiology120 citations Open access
Semantic Scholar
Burden of influenza-like illness and effectiveness of influenza vaccination among working adults aged 50-64 years.
K. Nichol, Sarah J. D'Heilly, M. Greenberg, E. Ehlinger
2009Clinical Infectious Diseases115 citations
Semantic Scholar
Health‐Related Quality of Life, Functional Impairment, and Healthcare Utilization by Veterans: Veterans' Quality of Life Study
Jasvinder A. Singh, S. Borowsky, S. Nugent, M. Murdoch +4 more
2005Journal of The American Geriatrics Society107 citations
Semantic Scholar
Attitudes and Practices Regarding Influenza Vaccination Among Healthcare Workers Providing Services to Individuals With Spinal Cord Injuries and Disorders
S. LaVela, Bridget M. Smith, F. Weaver, M. Legro +2 more
2004Infection Control & Hospital Epidemiology97 citations
Semantic Scholar
Comparison of the safety and immunogenicity of 2 respiratory syncytial virus (rsv) vaccines--nonadjuvanted vaccine or vaccine adjuvanted with alum--given concomitantly with influenza vaccine to high-risk elderly individuals.
A. Falsey, E. Walsh, J. Capellan, S. Gravenstein +11 more
2008Journal of Infectious Diseases93 citations Open access
Semantic Scholar
Development and validation of a clinical prediction rule for hospitalization due to pneumonia or influenza or death during influenza epidemics among community-dwelling elderly persons.
E. Hak, Feifei Wei, J. Nordin, J. Mullooly +2 more
2004Journal of Infectious Diseases92 citations Open access
Semantic Scholar
Maternal Safety of Trivalent Inactivated Influenza Vaccine in Pregnant Women
J. Nordin, Elyse O. Kharbanda, Gabriela Vazquez Benitez, K. Nichol +6 more
2013Obstetrics and Gynecology88 citations
Semantic Scholar
Where adults reported receiving influenza vaccination in the United States.
J. Singleton, Amy J. Poel, Peng-Jun Lu, K. Nichol +1 more
2005American Journal of Infection Control82 citations Open access
Semantic Scholar
Health-related quality of life predicts future health care utilization and mortality in veterans with self-reported physician-diagnosed arthritis: the veterans arthritis quality of life study.
Jasvinder A. Singh, D. Nelson, H. Fink, K. Nichol
2005Seminars in Arthritis & Rheumatism80 citations
Semantic Scholar
The Veterans Short Form 36 questionnaire is predictive of mortality and health-care utilization in a population of veterans with a self-reported diagnosis of asthma or COPD.
M. Sprenkle, D. Niewoehner, D. Nelson, K. Nichol
2004Chest80 citations
Semantic Scholar
Influenza vaccination: policy versus evidence
David S. Fedson, K. Nichol
2006British medical journal75 citations Open access
Semantic Scholar
Cost-effectiveness of live attenuated influenza vaccine versus inactivated influenza vaccine among children aged 24-59 months in the United States.
B. Luce, K. Nichol, R. Belshe, K. Frick +4 more
2008Vaccine70 citations
Semantic Scholar
Influenza vaccination among college and university students: impact on influenzalike illness, health care use, and impaired school performance.
K. Nichol, Sarah J. D'Heilly, E. Ehlinger
2008Archives of Pediatrics & Adolescent Medicine66 citations
Semantic Scholar
Heterogeneity of influenza case definitions and implications for interpreting and comparing study results.
K. Nichol
2006Vaccine65 citations
Semantic Scholar
Cost effectiveness of influenza vaccination for healthy persons between ages 65 and 74 years.
K. Nichol, M. J. Goodman
2002Vaccine64 citations
Semantic Scholar
Benefits and costs of immunizing children against influenza at school: an economic analysis based on a large-cluster controlled clinical trial.
J. Schmier, Li Su, J. King, K. Nichol +1 more
2008Health Affairs63 citations
Semantic Scholar
Efficacy trial of live, cold-adapted and inactivated influenza virus vaccines in older adults with chronic obstructive pulmonary disease: a VA cooperative study.
G. Gorse, T. O'Connor, Stephen L Young, P. Mendelman +14 more
2003Vaccine63 citations
Semantic Scholar
Human Coronavirus and Acute Respiratory Illness in Older Adults with Chronic Obstructive Pulmonary Disease
G. Gorse, T. O'Connor, S. L. Hall, Joseph N. Vitale +1 more
2009Journal of Infectious Diseases61 citations Open access
Semantic Scholar
Modeling Seasonal Influenza Outbreak in a Closed College Campus: Impact of Pre-Season Vaccination, In-Season Vaccination and Holidays/Breaks
K. Nichol, Kate Tummers, A. Hoyer-Leitzel, J. Marsh +2 more
2010PLoS ONE60 citations Open access
Semantic Scholar
Recognizing influenza in older patients with chronic obstructive pulmonary disease who have received influenza vaccine.
K. Neuzil, T. O'Connor, G. Gorse, K. Nichol
2003Clinical Infectious Diseases60 citations
Semantic Scholar
Effect of influenza-like illness and other wintertime respiratory illnesses on worker productivity: The child and household influenza-illness and employee function (CHIEF) study.
L. Palmer, M. Rousculp, Stephen S. Johnston, P. Mahadevia +1 more
2010Vaccine58 citations
Semantic Scholar
Influenza Vaccination in the Elderly
K. Nichol
2005Drugs & Aging58 citations
Semantic Scholar
Challenges in evaluating influenza vaccine effectiveness and the mortality benefits controversy.
K. Nichol
2009Vaccine57 citations Open access
Semantic Scholar
Decline in influenza-associated mortality among Dutch elderly following the introduction of a nationwide vaccination program.
A. Jansen, E. Sanders, K. Nichol, A. V. van Loon +2 more
2008Vaccine54 citations
Semantic Scholar
Influence of clinical case definitions with differing levels of sensitivity and specificity on estimates of the relative and absolute health benefits of influenza vaccination among healthy working adults and implications for economic analyses.
K. Nichol, P. Mendelman
2004Virus Research54 citations
Semantic Scholar
Cost-effectiveness and socio-economic aspects of childhood influenza vaccination.
K. Nichol
2011Vaccine53 citations
Semantic Scholar
High-Dose Influenza Vaccine to Reduce Clinical Outcomes in High Risk Cardiovascular Patients: Rationale and Design of the INVESTED Trial
O. Vardeny, J. Udell, Jacob Joseph, M. Farkouh +16 more
2018American Heart Journal48 citations Open access
Semantic Scholar
Burden of upper respiratory illnesses among college and university students: 2002-2003 and 2003-2004 cohorts.
K. Nichol, Sarah J. D'Heilly, Edward P. Ehlinger
2006Vaccine46 citations
Semantic Scholar
Economic and social impact of epidemic and pandemic influenza.
T. Szucs, K. Nichol
2006Vaccine41 citations
Semantic Scholar
Impact of a winter respiratory virus season on patients with COPD and association with influenza vaccination.
G. Gorse, T. O'Connor, Stephen L Young, M. P. Habib +3 more
2006Chest41 citations
Semantic Scholar
Rapid diagnosis of influenza infection in older adults: influence on clinical care in a routine clinical setting.
Sarah J. D'Heilly, E. Janoff, P. Nichol, K. Nichol
2008Journal of Clinical Virology40 citations
Semantic Scholar
A nested case-control study of influenza vaccination was a cost-effective alternative to a full cohort analysis.
E. Hak, F. Wei, D. Grobbee, K. Nichol
2004Journal of Clinical Epidemiology37 citations Open access
Semantic Scholar
Benefits of influenza vaccine in US elderly--appreciating issues of confounding bias and precision.
E. Hak, A. Hoes, J. Nordin, K. Nichol
2006International Journal of Epidemiology34 citations
Semantic Scholar
Guidelines for quality standards for immunization.
P. Gardner, L. Pickering, W. Orenstein, A. Gershon +1 more
2002Clinical Infectious Diseases33 citations Open access
Semantic Scholar

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G. Gorse×5
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J. Mullooly×4
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J. Mullooly — researcher profile on SciRah

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P. Mendelman×4

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Sarah J. D'Heilly×4

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K. Neuzil — researcher profile on SciRah

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E. Ehlinger — researcher profile on SciRah