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Home / Archives for Martins MO

Patterns of Sexual Risk Behavior, HIV Infection, and Use of Health Services Among Sub-Saharan African Migrants in Portugal

  • Autores: Dias S, Gama A, Abrantes P, Gomes I, Fonseca M, Reigado V, Simões D, Carreiras E, Mora C, Pinto Ferreira A, Akpogheneta O, Martins MO
  • Ano de Publicação: 2019
  • Journal: Journal of Sex Research
  • Link: https://www.ncbi.nlm.nih.gov/pubmed/31002270

This study identified patterns of sexual risk behavior among a sub-Saharan African migrant (SAM) population in Portugal and examined its associations with human immunodeficiency virus (HIV) prevalence, sociodemographics, use of sexual health services, and HIV testing. A cross-sectional biobehavioral survey was conducted with a venue-based sample of 790 SAMs. Data were collected using questionnaires and […]
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HIV Research with Men who Have Sex with Men (MSM): Advantages and Challenges of Different Methods for Most Appropriately Targeting a Key Population

  • Autores: Dias S, Gama A, Martins MO
  • Ano de Publicação: 2017
  • Journal: AIMS Public Health
  • Link: http://www.aimspress.com/article/10.3934/publichealth.2017.3.221/fulltext.html

The difficulty in accessing hard-to-reach populations as men who have sex with men presents a dilemma for HIV surveillance as their omission from surveillance systems leaves significant gaps in our understanding of HIV/AIDS epidemics. Several methods for recruiting difficult-to-access populations and collecting data on trends of HIV prevalence and behavioural factors for surveillance and research […]
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Cruising Venues as a Context for HIV Risky Behavior Among Men Who Have Sex With Men

  • Autores: Abecasis A, Barros H, Dias S, Gama A, Martins MO, Mendão L, Pingarilho M
  • Ano de Publicação: 2016
  • Journal: Archives of Sexual Behavior
  • Link: https://link.springer.com/article/10.1007%2Fs10508-016-0707-5

We examined differences in sexual risk behaviors, HIV prevalence, and demographic characteristics between men who have sex with men (MSM) who visit different types of venues to meet sexual partners, and identified correlates of high-risk behaviors. A cross-sectional behavioral survey was conducted with a venue-based sample of 1011 MSM in Portugal. Overall, 36.3 % of MSM […]
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Analysis of HIV/AIDS DRG in Portugal: a Hierarchical Finite Mixture Model

  • Autores: Andreozzi V, Dias SS, Martins MO
  • Ano de Publicação: 2013
  • Journal: The European Journal of Health Economics
  • Link: http://www.ncbi.nlm.nih.gov/pubmed/22864565

Inpatient length of stay (LOS) is an important measure of hospital activity, but its empirical distribution is often positively skewed, representing a challenge for statistical analysis. Taking this feature into account, we seek to identify factors that are associated with HIV/AIDS through a hierarchical finite mixture model. A mixture of normal components is applied to adult HIV/AIDS diagnosis-related group data (DRG) from 2008.
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Health status and preventative behaviors of immigrants by gender and origin: A Portuguese cross-sectional study

  • Autores: Dias S, Gama A, Martins MO
  • Ano de Publicação: 2013
  • Journal: Nursing and Health Sciences
  • Link: http://www.ncbi.nlm.nih.gov/pubmed/23347097

Migration has been associated with a greater vulnerability in health. Migrants, especially women, go through several experiences during the migration process and in the host countries that ultimately put their health at risk. This study examines self-reported health status and preventive behaviors among female and male immigrants in Portugal, and identifies sociodemographic and behavioral factors underlying gender differences.
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About GHTM

GHTM is a R&D Center that brings together researchers from IHMT with a track record in Tropical Medicine and International/Global Health. It aims at strengthening Portugal's role as a leading partner in the development and implementation of a global health research agenda. Our evidence-based interventions contribute to the promotion of equity in health and to improve the health of populations.

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1349-008 Lisboa
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