Estimating Influenza Vaccine Effectiveness in Community-Dwelling Elderly Patients Using the Instrumental Variable Analysis Method
نویسندگان
چکیده
منابع مشابه
Estimating influenza vaccine effectiveness in community-dwelling elderly patients using the instrumental variable analysis method.
BACKGROUND Estimates of influenza vaccine effectiveness in elderly individuals are largely from observational studies, which are susceptible to bias. Instrumental variable (IV) methods control for overt and hidden biases in observational studies. METHODS We used linked health administrative databases in Ontario to examine the association between influenza vaccination and all-cause mortality a...
متن کاملEffectiveness of influenza vaccine in the community-dwelling elderly.
BACKGROUND Reliable estimates of the effectiveness of influenza vaccine among persons 65 years of age and older are important for informed vaccination policies and programs. Short-term studies may provide misleading pictures of long-term benefits, and residual confounding may have biased past results. This study examined the effectiveness of influenza vaccine in seniors over the long term while...
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We aimed to estimate influenza vaccine effectiveness (VE) against laboratory-confirmed influenza during three influenza seasons (2010/11 to 2012/2013) in Spain using surveillance data and to compare the results with data obtained by the cycEVA study, the Spanish component of the Influenza Monitoring Vaccine Effectiveness (I-MOVE) network. We used the test-negative case–control design, with data...
متن کاملNutritional Status of the Community-dwelling Elderly in Tabriz, Iran
Introduction: Nutrition is an important determinant of health in the elderly. Older people are more susceptible to malnutrition that leaves adverse effects on their health. This study aimed to evaluate the nutritional status of the community-dwelling elderly in Tabriz City. Methods: This cross-sectional study was conducted among non- institutionalized older people in Tabriz, Iran. A to...
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BACKGROUND Cost and quality-adjusted life-years (QALYs) gained by quadrivalent influenza vaccine (QIV) versus trivalent influenza vaccine (TIV) in Hong Kong elderly were estimated over 9 seasons. METHODS TIV-unmatched influenza B infection rates with QIV versus TIV were estimated by an epidemiology model. Model parameters included percentages of influenza B lineages in circulation, influenza ...
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ژورنال
عنوان ژورنال: Archives of Internal Medicine
سال: 2012
ISSN: 0003-9926
DOI: 10.1001/archinternmed.2011.2038