MATUTE WILLEMSEM, MARIA ISABEL
Preferred name
MATUTE WILLEMSEM, MARIA ISABEL
Main Affiliation
Email
mimatute@udd.cl
ORCID
0000-0002-6288-4601
Scopus Author ID
57189618633
25 results
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Item type:Publication, Exposure to tobacco impressions during prime-time TV
among Chilean minors by sex and socioeconomic status(2022); ; ; 18 - Some of the metrics are blocked by yourconsent settings
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Item type:Publication, Seroprevalence and estimation of the impact of SARS-CoV-2 infection in older adults residing in Long-term Care Facilities in Chile(2022); ; ; Cedric Little<jats:p>Introducción Las personas mayores tienen más riesgo de enfermar gravemente y fallecer por COVID-19. Esta vulnerabilidad aumenta en quienes viven en establecimientos de larga estadía, debido a hacinamiento, mayor dependencia física y contacto con los trabajadores. La evidencia sobre el impacto de la pandemia de estos establecimientos en países de medianos y bajos ingresos ha sido escasa. El objetivo es determinar la seroprevalencia de la infección por SARS-CoV-2 en personas mayores que residen en establecimientos de larga estadía. Así como estimar el impacto global de la infección después de la primera ola de la pandemia. Métodos Diseño transversal con 2099 residentes en tres regiones de Chile, realizado entre septiembre y noviembre 2020. Anticuerpos fueron medidos con test rápido contra SARS-CoV-2. Se estimó el impacto de la infección con los residentes seropositivos, los residentes con antecedentes de reacción en cadena de la polimerasa de transcripción inversa positiva, y residentes que murieron por COVID-19. Análisis bivariado entre el resultado serológico y región, sexo, edad, antecedentes de COVID-19 y dependencia física fueron realizados. Además, realizamos un análisis de correlación entre la seroprevalencia de los centros por municipio y la tasa acumulada de casos confirmados. Resultados La seroprevalencia de anticuerpos en las tres regiones fue 14,7% (intervalo de confianza del 95%: 13,2 a 16,3%). El impacto real de la infección se estimó en 46,4% y la tasa de letalidad en 19,6%. La seroprevalencia de los residentes de los centros por comuna se correlacionó positiva y significativamente con la frecuencia de la enfermedad a nivel comunal. Conclusiones Seroprevalencia superior a la de la población general, observándose un alto impacto de la infección por COVID-19 al final de la primera ola de la pandemia. El lugar en el que se encuentran los establecimientos está directamente relacionado con la tasa de seroprevalencia en ellos. Sistemas de vigilancia epidemiológica deben aplicarse con prontitud para establecer medidas de prevención y control.</jats:p>1Scopus© Citations 1 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Exposure of 4-year to 24-year olds to tobacco imagery on prime-time Chilean television(2021); ; ; <jats:sec><jats:title>Introduction</jats:title><jats:p>The extent of the population’s exposure to tobacco imagery across all genres of regular TV programming and the contribution of each of these genres is unknown, except for UK broadcast channels. The objective of this study is to estimate the exposure of young people to tobacco imagery on Chilean prime-time television and the programme source contributing to such exposure.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>Programmes aired during 3 weeks in 2019 from the 15 highest audience channels in Chile were content-analysed for the occurrence of tobacco categorised as actual use, implied use, tobacco paraphernalia, tobacco brand appearances and whether they violated Chilean smoke-free law for each 1 min interval (92 639). The exposure of young people to tobacco content was estimated using media viewership figures.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>Young people received 29, 11 and 4 million tobacco impressions of any type, explicit use and smoke-free violation, respectively, at a rate of 21.8, 8.0 and 2.1 thousand impressions per hour of TV viewing. The main sources of exposure to tobacco impressions were feature films and animated productions, which were almost entirely non-Chilean. Finally, young people were exposed to tobacco brand impressions primarily through films, effectively circumventing the advertising ban in Chile.</jats:p></jats:sec><jats:sec><jats:title>Discussion</jats:title><jats:p>Television programming is a source of significant youth exposure to tobacco imagery, including branding impressions. To conform to the WHO FCTC, Chile should prohibit tobacco branding in any TV programme and require strong anti-tobacco advertisements prior to any TV programme portraying tobacco.</jats:p></jats:sec>23Scopus© Citations 3 - Some of the metrics are blocked by yourconsent settings
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Item type:Publication, Poverty and ethnic patterns in COVID-19 excess mortality: evidence from Chile, 2020-2022(Oxford University Press (OUP), 2025-12-10); ; Elienai Joaquin-DamasThe COVID-19 pandemic highlighted deep-rooted health inequities globally, with marginalized populations showing disproportionate disease burden. We employed Serfling regression models and multivariable analyses to estimate excess mortality across geographic, demographic, and poverty groups from 2020 to 2022 in Chile. Elderly populations (80+ years) experienced the highest excess mortality (267.35 per 10 000 population), more than 8 times higher than those under 80 years (30.80 per 10 000 population). Multivariable linear regression models showed both Indigenous proportion (coefficient = 53.66, P &lt; .001) and elderly population proportion (coefficient = 5.68, P &lt; .01) as the strong predictors of comuna level excess mortality. Poverty correlated significantly with excess mortality (r = 0.23, P &lt; .001) but this association weakened after adjustment for other covariates in multivariable models. Excess mortality peaked in 2021 rather than in 2020 for most groups, with males initially experiencing higher rates during early pandemic waves. Spatial analyses revealed statistically significant clustering (Moran’s I = 0.119, P &lt; .001) with identifiable hotspots in northern Chile and parts of the south. These findings indicated persistent mortality disparities by age and Indigenous status, independent of poverty, and highlight the urgent need for equity-focused pandemic preparedness. An effective pandemic response should integrate biomedical measures, such as vaccination, with culturally grounded strategies that address structural barriers and the broader social determinants of health.</jats:p>1
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