Xaviera Molina

ORCID: 0000-0001-5477-5926
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About
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Research Areas
  • Smoking Behavior and Cessation
  • COVID-19 epidemiological studies
  • COVID-19 and Mental Health
  • Vaccine Coverage and Hesitancy
  • Air Quality and Health Impacts
  • Media Influence and Health
  • Health and Lifestyle Studies
  • Global Public Health Policies and Epidemiology
  • Telemedicine and Telehealth Implementation
  • Frailty in Older Adults
  • Stress and Burnout Research
  • Health Systems, Economic Evaluations, Quality of Life
  • SARS-CoV-2 and COVID-19 Research
  • Behavioral Health and Interventions
  • Pharmaceutical Economics and Policy
  • Child and Adolescent Psychosocial and Emotional Development
  • Mobile Health and mHealth Applications
  • Technology Use by Older Adults
  • Noise Effects and Management
  • School Health and Nursing Education
  • Traffic and Road Safety
  • Arsenic contamination and mitigation
  • COVID-19 Digital Contact Tracing
  • Aging, Health, and Disability
  • Climate Change Communication and Perception

Universidad del Desarrollo
2020-2025

Clínica Alemana
2020-2025

Instituto de Salud Pública de Chile
2022-2024

Universitat Pompeu Fabra
2024

Fundación Chile
2022

Universidad del Desarrollo del Estado de Puebla
2020

Abstract Background In 2020, countries implemented universal surveillance to detect and monitor SARS-CoV-2 cases. Although crucial for early monitoring efforts, is resource intensive. To understand the implications of transitioning from sentinel transmissibility, morbidity mortality, disease seriousness, we compared measures reported both strategies in Argentina, Chile, Mexico. Methods We obtained weekly case counts Mexico, periods when were ongoing. assess countries’ strategies, measured...

10.1093/infdis/jiae620 article EN cc-by The Journal of Infectious Diseases 2025-02-01

Arsenic chronic exposure, particularly in its inorganic form, represents a significant public health concern. This study was conducted Arica, the northernmost city country, whose inhabitants have been exposed to arsenic both naturally through drinking water and anthropogenically due toxic waste disposal site. We explored changes levels cohort of pregnant women their children over decade, identifying exposure trends determinants. used data on maternal urine samples during pregnancy, collected...

10.3390/toxics13030215 article EN cc-by Toxics 2025-03-16

Prevention of infectious diseases is based on host protection, especially using vaccines. Several factors have been linked to the acceptance vaccines in population. Chile achieved high COVID-19 vaccination coverage early pandemic. The study aimed determine prevalence antigens and antibodies, status, geographical distribution, related vaccine acceptability. In two Chilean cities, fourth round a population-based seroprevalence cross-sectional survey was conducted May 2024. 654 participants...

10.1186/s12889-025-22314-1 article EN cc-by-nc-nd BMC Public Health 2025-03-28

The rapid emergence of COVID-19 necessitated policy responses worldwide, focusing on vaccination and mobility restrictions. However, studies individual non-pharmacological preventive measures are less common. In particular, Chile represents a unique scenario for analyzing the adoption changes amid aggressive communication campaigns. This study aims to provide insights into public adherence in face diseases, using cohort 386 participants from 2021 2022. was achieved by employing questionnaire...

10.20944/preprints202401.0742.v1 preprint EN 2024-01-09

Objective To assess the national level of compliance with Chilean comprehensive smoke-free legislation by observing healthcare facilities, education centres, government offices, hospitality venues and private workplaces, type area within workplaces public places: enclosed, semiopen open. Methodology In this cross-sectional observational study, we studied a representative sample 3253 obtained through two-stage cluster sampling design. First, 57 municipalities were randomly selected,...

10.1136/tobaccocontrol-2020-055632 article EN Tobacco Control 2020-07-23

The rapid emergence of COVID-19 urged policy responses worldwide, focusing on vaccination and mobility restrictions. Chile represents a unique scenario for analyzing personal preventive measures amid intensive communication campaigns. This study aims to explore changes in population adherence non-pharmacological during the pandemic factors that explain this each year.

10.5867/medwave.2024.10.2939 article EN cc-by-nc Medwave 2024-11-11

Abstract Background As the vaccination campaign against COVID-19 progresses, it becomes crucial to comprehend lasting effects of on safeguarding new infections or reinfections. Objective This study aimed assess risk SARS-CoV-2 based number vaccine doses, prior infections, and other clinical characteristics. Methods We defined a cohort 800 health care workers in 24-month (March 2020 December 2022) northern Barcelona determine by SARS-CoV-2. used extended Cox models, specifically Andersen-Gill...

10.2196/56926 article EN cc-by JMIR Public Health and Surveillance 2024-11-22

We tested if tobacco impressions were delivered differentially to prime-time TV watching minors by sex and socioeconomic status.Programs aired during for three random weeks in 2019 from the 15 highest audience channels Chile content-analyzed occurrence of each one-minute interval 92639 recorded. Such occurrences categorized as actual use whether they violated Chilean smoke-free law or brand appearances. estimated number persons per hour (p/h) exposed 4 17 years age group status (SES).Minors...

10.18332/tid/155264 article EN cc-by Tobacco Induced Diseases 2022-11-09

The initial high level of compliance with the Chilean comprehensive national smoke-free law in 2013 is fading, particularly hospitality sector. This paper draws attention to how using a simple and low-cost surveillance inquiry may help focus on use scarce inspection resources improve We conducted cross-sectional assessment second-hand smoke exposure night entertainment venues Santiago, Chile, by measuring particulate matter less than 2.5μm (PM2.5). Smoking where prohibited was observed 36%...

10.1016/j.gaceta.2020.04.016 article EN cc-by-nc-nd Gaceta Sanitaria 2020-07-15

Introduction The extent of the population’s exposure to tobacco imagery across all genres regular TV programming and contribution each these is unknown, except for UK broadcast channels. objective this study estimate young people on Chilean prime-time television programme source contributing such exposure. Methods Programmes aired during 3 weeks in 2019 from 15 highest audience channels Chile were content-analysed occurrence categorised as actual use, implied paraphernalia, brand appearances...

10.1136/tobaccocontrol-2021-056735 article EN cc-by-nc Tobacco Control 2021-10-04

Smoking is one of the most relevant public health problems worldwide and main causes preventable premature death. In-hospital treatment subsequent follow-up are effective in terms cessation.To determine frequency smoking habits among patients hospitalized at a private clinic Santiago.Hospitalized were invited to answer structured adapted questionnaire on habits.The survey was answered by 294 (56% women). Twenty three percent respondents smokers. Among smokers, 50% indicated consumption from...

10.4067/s0034-98872023000100101 article EN Revista médica de Chile 2023-02-01

The aim of the study is to assess national level compliance with Chilean smoke-free legislation in urban public transportation system.In this cross-sectional observational study, we studied a representative sample 475 vehicles obtained through two-stage cluster sampling design 2018. First, 57 municipalities were randomly selected, proportionally total number vehicles. Second, within each municipality, convenience up 4 taxis, buses, and 2 metro coaches was observed. We determined...

10.18332/tid/125075 article EN cc-by-nd Tobacco Induced Diseases 2020-07-22
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