ArticleBMC public health2013
Trends in influenza vaccination coverage in Portugal from 1998 to 2010: effect of major pandemic threats.
Article in BMC public health, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 16 citations in OpenAlex.
- Article
- Pharmacists' attitudes toward influenza vaccination: does the COVID-19 pandemic make a difference?Exploratory research in clinical and social pharmacy · 2023Article
- Health beliefs and attitudes toward Influenza and COVID-19 vaccination in Portugal: a study using a mixed-method approach.Frontiers in public health · 2023Article
- Prevalence and factors of influenza vaccination during the COVID-19 pandemic among university students in China.Vaccine · 2022Article
- Organised and opportunistic prevention in primary health care: estimation of missed opportunities by population based health interview surveys in Hungary.BMC family practice · 2020Article
- Influenza vaccination among Saudi Hajj pilgrims: Revealing the uptake and vaccination barriers.Vaccine · 2018Article
- Excess pneumonia and influenza hospitalizations associated with influenza epidemics in Portugal from season 1998/1999 to 2014/2015.Influenza and other respiratory viruses · 2018Article
- Beliefs and attitudes towards the influenza vaccine in high-risk individuals.Epidemiology and infection · 2017Article
- Influenza vaccination coverage among adults in Korea: 2008-2009 to 2011-2012 seasons.International journal of environmental research and public health · 2014Article
- Article
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4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundVaccination is the key measure available for prevention of the public health burden of annual influenza epidemics. This article describes national trends in seasonal influenza vaccine (IV) coverage in Portugal from 1998/99 to 2010/11, analyzes progress towards meeting WHO 2010 coverage goals, and addresses the effect of major public health threats of the last 12 years (SARS in 2003/04, influenza A (H5N1) in 2005/06, and the influenza A (H1N1)2009 pandemic) on vaccination trends.
methodsThe National Institute of Health surveyed (12 times) a random sample of Portuguese families. IV coverage was estimated and was adjusted for age distribution and country region. Independence of age and sex coverage distribution was tested using a modified F-statistic with a 5% significance level. The effect of SARS, A (H5N1), and the A (H1N1)2009 pandemic was tested using a meta-regression model. The model was adjusted for IV coverage in the general population and in the age groups.
resultsBetween 1998/99 and 2010/11 IV, coverage in the general population varied between 14.2% (CI(95%): 11.6%-16.8%) and 17.5% (CI(95%): 17.6%-21.6%). There was no trend in coverage (p = 0.097). In the younger age group (<15 years) a declining trend was identified until 2008/09 (p = 0.005). This trend reversed in 2009/10. There was also a gradual and significant increase in seasonal IV coverage in the elderly (p for trend < 0.001). After 2006/07, IV coverage remained near 50%. Adjusting for baseline trends, there was significantly higher coverage in the general population in 2003/04 (p = 0.032) and 2005/06 (p = 0.018). The high coverage observed in the <15-year age group in season 2009/10 was also significant (p = 0.015).
conclusionsIV coverage in the elderly population displayed an increasing trend, but the 75% WHO 2010 target was not met. This result indicates that influenza vaccination strategy should be improved to meet the ambitious WHO coverage goals. The major pandemic threats of the past decade had a modest but significant effect on seasonal influenza vaccination. There was an increase in vaccine uptake proportion in the general population in 2003/04 and in 2005/06, and in individuals <15 years old in 2009/10.
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