Publications by authors named "Laia Ferrer"

COVID-19 is associated with poor maternal and pregnancy outcomes. COVID-19 vaccination is recommended in Spain, yet vaccination rates in pregnancy are suboptimal. This study investigates the perceptions of pregnant women and healthcare workers (HCW) regarding COVID-19 vaccination.

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Background: Transgender women and cisgender men sex workers are vulnerable to HIV and sexually transmitted infections (STIs). This study aimed to explore in depth the prevalence of syndemic conditions and their association with the sexual risk behaviors for HIV/STI acquisition in cis men and trans women sex workers in Barcelona (Catalonia, Spain).

Method: We conducted a study between 2014 and 2018 to determine whether syndemic conditions (frequent alcohol consumption and polydrug use (> 2) during sex with clients; experience of violence; and lack of healthcare access) are associated with HIV/STI sexual risk behaviors.

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Background: The aim of this study was to describe the socio-demographics, and the sexual and health-seeking behaviours of cisgender men and transgender women sex workers (M & TWSW) attending community-based organisations (CBOs) in Barcelona, Spain, as well as to estimate the prevalence of HIV, hepatitis B virus (HBV), hepatitis C virus (HCV), (CT) and (NG) among them at different anatomical sites.

Methods: The Sweetie Project was a community-based cross-sectional study of 147 M & TWSW recruited in two CBOs in Barcelona between 2017 and 2018. A nurse collected biological samples from rectum, pharynx and urethra from the subjects at each CBO and the participants self-completed an epidemiological questionnaire.

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The objective of the study was to describe the impact of the COVID-19 pandemic on sex workers in accessing health and social services. A qualitative study was conducted using semi-structured interviews with 29 participants in Barcelona, Spain. Data were analyzed using thematic analysis.

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Due to COVID-19, many countries, like Spain, imposed lockdown on the entire population to prevent the virus from spreading. The purpose of this exploratory study is to investigate the severity of psychological symptoms, dyadic adjustment, and parental stress of parents during the first three weeks of the outbreak. It also aims to identify several risk factors that contribute to this distress.

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We highlight the potential of a predictive optical model method for tissue recognition, based on the statistical analysis of different polarimetric indicators that retrieve complete polarimetric information (selective absorption, retardance and depolarization) of samples. The study is conducted on the experimental Mueller matrices of four biological tissues (bone, tendon, muscle and myotendinous junction) measured from a collection of 157 ex-vivo chicken samples. Moreover, we perform several non-parametric data distribution analyses to build a logistic regression-based algorithm capable to recognize, in a single and dynamic measurement, whether a sample corresponds (or not) to one of the four different tissue categories.

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Objective: The objective of the study is to assess the health status of immigrant men and women from non-EU countries living in the Metropolitan Area of Barcelona (Catalonia, Spain) and to identify the social determinants of health from a gender perspective.

Method: Cross-sectional analysis from a cohort of immigrant families recruited in Badalona and Santa Coloma de Gramenet, in Spain (PELFI cohort). In 2015-2016, 167 immigrants answered the baseline epidemiological questionnaire and the 5-level EuroQol instrument (EQ-5D) which measures health status.

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Within the MSM population, men who have sex with both men and women (MSMW) are identified as a high-risk group both worldwide and in Europe. In a multi-centred bio-behavioural cross-sectional study, we aimed to assess the relationship(s) between socio-demographic factors, stigma, sexual behavioural patterns, test seeking behaviour and sero-status amongst MSMW. A multi-level analysis was conducted to identify factors associated with being MSMW versus Men who have Sex with Men Only (MSMO).

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Maternal pertussis vaccination is associated with higher levels of pertussis antibodies at birth. We assessed the persistence of pertussis antibodies until primary vaccination in infants whose mothers received Tdap (tetanus, diphtheria, acellular pertussis) vaccine during pregnancy. Infants were born at the Hospital Clinic of Barcelona (Spain) in November 2014.

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Background: Globally, the HIV epidemic continues to represent a pressing public health issue in Europe and elsewhere. There is an emerging and progressively urgent need to harmonise HIV and STI behavioural surveillance among MSM across European countries through the adoption of common indicators, as well as the development of trend analysis in order to monitor the HIV-STI epidemic over time. The Sialon II project protocols have been elaborated for the purpose of implementing a large-scale bio-behavioural survey among MSM in Europe in line with a Second Generation Surveillance System (SGSS) approach.

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Objectives: To identify the HIV incidence and its associated factors (AFs) of the ITACA, a community-based cohort of HIV-negative men who have sex with men (MSM) established in Barcelona, Spain from 2008 to 2011.

Methods: Participants were men aged 18 years or older, having a negative HIV test result at baseline and agreeing to participate. Bio-behavioural data were collected by peers in each visit.

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The present study, based on social representation theory (Moscovici, 1961), aimed to identify the social representation of condom use (CU) in a collective of female sex workers (FSW) in Catalonia, considering both their work and private life. It involved 124 FSW and combined both qualitative and quantitative methodologies. Results suggest that both CU and non-CU represent strategies that FSW use mainly when confronted by threats to things they consider important.

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Objectives: To compare sexual practices and risk behaviours between MSM who were first diagnosed with hepatitis C (HCV) in the previous 12 months and those who were never diagnosed; and, to identify factors associated with a diagnosis of HCV.

Methods: The European-MSM-Internet-Survey (EMIS) was implemented for 3 months during 2010, mainly on websites for MSM. Data on socio-demographic characteristics, sexual behaviour, drug use, STI history, and other sexual health variables were collected.

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Introduction: Over the past 25 years, several studies have shown the efficacy of a number of psychological interventions for severe personality disorders. However, the generalizability of these positive results from long traditional research settings to more ordinary ones has been questioned, requiring a need for replication in pragmatic studies.

Methods: This pragmatic study compares hospitalizations and Emergency Room visits before and during a 6-month therapeutic program for severe personality disorders, and at 36 months after starting it.

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Objectives: The purpose of this article is to assess the distribution of undiagnosed HIV infection in men who have sex with men (MSM) in Southern and Eastern European countries, to describe the differences in epidemiology and behaviour between undiagnosed, diagnosed HIV-positive and HIV-negative MSM and to identify factors associated with undiagnosed HIV infection in the study population.

Methods: A multi-centre biological and behavioural cross-sectional study was conducted in 2008. Time-location sampling was used to recruit men attending different venues.

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Objectives: To describe and compare levels of knowledge about HIV/AIDS and condom use in the immigrant population.

Method: We performed a cross-sectional study by means of a semi-structured questionnaire and face-to face interviews in 238 Latin American and Maghrebi users of medical centers in the Barcelona and North Barcelona-Maresme health areas. The questionnaire included sociodemographic variables and questions on sexual behavior and general knowledge about HIV/AIDS, transmission mechanisms, and means of prevention.

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