APABLAZA SALINAS, MAURICIO IVÁN
Preferred name
APABLAZA SALINAS, MAURICIO IVÁN
Main Affiliation
Email
mapablaza@udd.cl
ORCID
0000-0003-1306-3791
Scopus Author ID
56845856600
39 results
Now showing 1 - 10 of 39
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Item type:Product, Dataset - Multimorbidity profile among cancer-related hospitalization events in younger and older patients: a large-scale nationwide cross-sectional study(GITHUB, 2026) ;Sanhueza Condell Cristobal Tomas ;CARLA ANDREA CAMPAÑA CASTILLO; ; - Some of the metrics are blocked by yourconsent settings
Item type:Publication, 28 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Immunization and SARS-CoV-2 Antibody Seroprevalence in a Country with High Vaccination Coverage: Lessons from Chile(2022); ;Gloria Icaza; ; <jats:p>Chile is among the most successful nations worldwide in terms of its COVID-19 vaccine rollout. By 31 December 2021, 84.1% of the population was fully vaccinated, and 56.1% received booster doses using different COVID-19 vaccines. In this context, we aimed to estimate the prevalence of anti-SARS-CoV-2 antibodies following the infection and vaccination campaign. Using a three-stage stratified sampling, we performed a population-based cross-sectional serosurvey based on a representative sample of three Chilean cities. Selected participants were blood-sampled on-site and answered a short COVID-19 and vaccination history questionnaire using Wantai SARS-CoV-2 Ab ELISA to determine seroprevalence. We recruited 2198 individuals aged 7–93 between 5 October and 25 November 2021; 2132 individuals received COVID-19 vaccinations (97%), 67 (3.1%) received one dose, 2065 (93.9%) received two doses, and 936 received the booster jab (42.6%). Antibody seroprevalence reached 97.3%, ranging from 40.9% among those not vaccinated to 99.8% in those with booster doses (OR = 674.6, 154.8–2938.5). SARS-CoV-2 antibodies were associated with vaccination, previous COVID-19 diagnosis, age group, and city of residence. In contrast, we found no significant differences in the type of vaccine used, education, nationality, or type of health insurance. We found a seroprevalence close to 100%, primarily due to the successful vaccination program, which strongly emphasizes universal access.</jats:p>6Scopus© Citations 13 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, 3Scopus© Citations 5 - Some of the metrics are blocked by yourconsent settings
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Item type:Publication, Are migrants in/from emerging economies more entrepreneurial than natives?(2021); ; ; Veronica Arriagada<jats:title>Abstract</jats:title><jats:p>The academic debate in migrant entrepreneurship has mainly focused on movements from emerging economies into developed economies. Anecdotal evidence has suggested that the highest impact is generated by migrants in/from emerging economies. To extend this academic discussion in the Latin-American context, this study investigates why migrants are more entrepreneurial than natives. By adopting the human capital and the institutional approach, we theorize that individual and environmental conditions produce selection/discrimination effects in the host labour market. Consequently, these effects influence migrants’ decision to become entrepreneurs. We tested our hypotheses using a sample of 13,368 adults between the ages of 18–64 based across the 16 Chilean regions. Our results showed that being a high-skilled migrant in a dynamic emerging economy is not a guarantee of success in the labour market, but it is a determinant of international and necessity-driven entrepreneurship. Several implications and a provocative discussion emerged from these findings.</jats:p>3Scopus© Citations 32 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Post-COVID-19 symptoms in a community sample: Exploratory study in two Chilean cities, 2023–2024(Elsevier BV, 2025-11) ;Xaviera Molina ;Camila Awad ;Muriel Ramírez-Santana; Loreto Nunez-Franz1 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Seroprevalence, spatial distribution, and social determinants of SARS-CoV-2 in three urban centers of Chile(2022); ; ;Gloria Icaza ;Muriel Ramirez-SantanaRubén Quezada-Gaete<jats:title>Abstract</jats:title><jats:sec> <jats:title>Background</jats:title> <jats:p>Seroprevalence studies provide an accurate measure of SARS-CoV-2 spread and the presence of asymptomatic cases. They also provide information on the uneven impact of the pandemic, pointing out vulnerable groups to prioritize which is particularly relevant in unequal societies. However, due to their high cost, they provide limited evidence of spatial spread of the pandemic specially in unequal societies. Our objective was to estimate the prevalence of SARS-CoV-2 antibodies in Chile and model its spatial risk distribution.</jats:p> </jats:sec><jats:sec> <jats:title>Methods</jats:title> <jats:p>During Oct–Nov 2020, we conducted a population-based serosurvey in Santiago, Talca, and Coquimbo–La Serena (2493 individuals). We explored the individual association between positive results and socio-economic and health-related variables by logistic regression for complex surveys. Then, using an Empirical Bayesian Kriging model, we estimated the infection risk spatial distribution using individual and census information, and compared these results with official records.</jats:p> </jats:sec><jats:sec> <jats:title>Results</jats:title> <jats:p>Seroprevalence was 10.4% (95% CI 7.8–13.7%), ranging from 2% (Talca) to 11% (Santiago), almost three times the number officially reported. Approximately 36% of these were asymptomatic, reaching 82% below 15 years old. Seroprevalence was associated with the city of residence, previous COVID-19 diagnosis, contact with confirmed cases (especially at household), and foreign nationality. The spatial model accurately interpolated the distribution of disease risk within the cities finding significant differences in the predicted probabilities of SARS-CoV-2 infection by census zone (IQR 2.5–15.0%), related to population density and education.</jats:p> </jats:sec><jats:sec> <jats:title>Conclusions</jats:title> <jats:p>Our results underscore the transmission heterogeneity of SARS-CoV-2 within and across three urban centers of Chile. Socio-economic factors and the outcomes of this seroprevalence study enable us to identify priority areas for intervention. Our methodological approach and results can help guide the design of interdisciplinary strategies for urban contexts, not only for SARS-CoV-2 but also for other communicable diseases.</jats:p> </jats:sec>Scopus© Citations 11 1 - Some of the metrics are blocked by yourconsent settings
Item type:Product, 10