Publications by authors named "Sandrine Halfen"

Article Synopsis
  • The Maroni basin, located between Suriname and French Guiana, experienced a sharp rise in HIV prevalence, exceeding 1% within ten years, with this increase noted later than in coastal French Guiana.
  • This study aimed to compare knowledge, attitudes, and behaviors regarding HIV between Maroon and Amerindian populations in remote villages along the Maroni river, based on data collected from 896 individuals in 2012.
  • Findings revealed significant differences in sexual behavior and condom use: Maroons reported more multiple sexual partnerships than Amerindians, while men in the Maroni area used condoms more than those on the coast, a trend that was reversed for women.
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Article Synopsis
  • The Maroni basin, situated between Suriname and French Guiana, has seen a rapid rise in HIV prevalence, surpassing 1% within a decade, alongside significant stigma against individuals living with HIV (PLWHIV).
  • A study conducted in 2012 surveyed 896 residents from remote villages using a structured questionnaire to gather quantitative data on stigma and compared it to coastal French Guiana's population.
  • Results showed that negative attitudes towards PLWHIV were significantly higher in the Maroni region, linked to lower knowledge levels, misinformation, and poor living conditions, highlighting the need for targeted interventions to reduce stigma and improve community health outcomes.
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In France, HIV prevention within Maghrebi or French of Maghrebi origin has been seldom studied. The purpose of this study is to compare the recourse to HIV test according to nationality and origin. Data were from the 2010 SIRS cohort, which included 3,006 households representative of the Paris metropolitan area.

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In most developed countries, a significant part of the population is still smoking despite comprehensive tobacco control policies. Among other reasons, many smokers may endorse self-exempting beliefs that help them to deny the smoking hazards for themselves. We investigated the relationship between smokers' risk denial and their readiness to quit making use of a French cross-sectional survey conducted in the Paris Ile-de-France Region (N=939 smokers).

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Background: Quantitative assessment of multiple sexual partnerships and concurrency may help to elucidate the large observed differences in the prevalence of AIDS among population subgroups and countries.

Goal: The goals of the study were (1) to develop a global scale of dynamic patterns of sexual partnerships, including concurrency with new partners and stable concurrency; (2) to apply this scale to three Caribbean regions characterized by different cumulative rates of incidence of AIDS; and (3) to compare the concurrency rates given by this scale with those of other published methods.

Study Design: We defined an individual scale based on 6 patterns of sexual behavior over the previous 12-month period, by using a simple algorithm to combine 7 variables.

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