Luis Sordo

Luis Sordo
Complutense University of Madrid / CIBERESP

MD, PhD, MPH

About

114
Publications
10,823
Reads
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2,284
Citations
Citations since 2016
47 Research Items
2066 Citations
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20162017201820192020202120220100200300400
20162017201820192020202120220100200300400
20162017201820192020202120220100200300400
Additional affiliations
December 2012 - April 2020
Complutense University of Madrid
Position
  • Professor

Publications

Publications (114)
Preprint
BACKGROUND Opioid drug prescription (ODP) and opioid-related mortality (ORM) have increased in Spain. However, their relationship is complex, as ORM is registered without considering the type of opioid (legal/illegal). OBJECTIVE This ecological study aims to examine the correlation between ODP and ODP in Spain. METHODS Information on ODP (2000-20...
Article
Cyberbullying is an extremely damaging form of interpersonal violence. Little is yet known about cyberbullying behaviors in the child and youth population during the COVID-19 pandemic and what effect this reduction in face-to-face social interactions has had on an increase in socialization via the Internet and cyberbullying. The present study is a...
Article
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The study aims to assess the implementation of tobacco control policies in Mexico from 2003 through 2017 using the Tobacco Control Scale (TCS). The TCS is a research tool widely used in the European region. It facilitates assessment of tobacco control policy implementation based on six cost-effective interventions: tobacco taxes, smoke-free policie...
Article
Background: Tramadol, a weak opioid, inhibits the reuptake of serotonin, a key feature on vascular homeostasis. A suspected interaction exists between dabigatran and tramadol, which might trigger an excess on risk of bleeding however, there is a gap in knowledge on this topic. Purpose: To estimate the effects of tramadol, dabigatran and concomit...
Article
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Background: Mental Health and psychosocial support (MHPSS) programs are essential during humanitarian crises and in conflict settings, like Nigeria's Borno State. However, research on how types of traumatic stress and symptom severity affect clinical improvement is lacking in these contexts, as is consensus over how long these patients must engage...
Article
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Background: This study analyzes the frequency and sociodemographic characteristics associated with sexual violence by a partner/ex-partner (PSV), someone other than a partner or ex-partner (NPSV), or sexual harassment (SH). Methods: The study is based on the 2019 Macro-survey of Violence against Women conducted by the Spanish Ministry of Equalit...
Article
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ObjectivesHIV self-testing has been available in Spain since 2017 as a diagnostic tool to promote earlier diagnosis. We aimed to assess awareness and previous use of HIV self-testing in a sample of men who have sex with men (MSM) recruited online more than 2 years after its legal authorization in Spain.Methods We analyzed 5,492 MSM recruited betwee...
Article
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Acknowledgement of the prevalence of recreational opioid use (PROU) is key to the planning and evaluation of care services. However, in Spain, the prevalence of PROU in recent years is unknown. The objective of this study was to estimate the PROU between 2005 and 2019 in the general populations of six Spanish cities. A benchmark-multiplier methodol...
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Purpose: To assess whether a clinical simulation-based obstetric blood loss quantification workshop for medical undergraduate trainees improves theoretical-practical knowledge, along with self-assurance and self-confidence. Methods: This was a quasi-experimental pre-post learning study conducted at the Gynaecology and Obstetrics Unit of the Hosp...
Article
We aimed to assess the effect of the 2008 crisis on road traffic collision (RTC) mortality in Spain, by socioeconomic position (SEP) and type of road use. This prospective, country-wide study covered all adults living in Spain and aged ≥30 years in November 2001. The long-term effect of the crisis was assessed by measuring the monthly percentage ch...
Article
Importance Mortality among people with opioid dependence is higher than that of the general population. Opioid agonist treatment (OAT) is an effective treatment for opioid dependence; however, there has not yet been a systematic review on the relationship between OAT and specific causes of mortality. Objective To estimate the association of time r...
Article
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We analyzed men who have sex with men (MSM) from Denmark, Germany, Greece, Portugal and Spain to identify who would choose HIV self-testing as their preferred testing method and assessed their preferred setting to acquire a self-testing kit and to confirm a reactive result. In 2016, we recruited an online sample of 3725 HIV-negative MSM. We used Po...
Article
Background: Adolescents' consumption of tranquilizers, sedatives, and sleeping pills (TSSp) has increased during the last few decades, and TSSp are currently among the substances with the lowest age-of-onset. We characterized current-use patterns of TSSp consumers by age when first taken. Methods: This study used individualized secondary data re...
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Sexual violence, including drug-facilitated sexual assaults, is a serious issue that is becoming increasingly common in leisure nightlife contexts. This study provides information about the attitudes and perceptions of Spanish youths towards sexual violence within that setting. The participants were recruited by a snowball sampling scheme. A bivari...
Article
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Background We assessed to what extent HIV self-testing would be incorporated by men who have sex with men (MSM) with previous testing history as their exclusive testing option and describe what actions they would take in the case of obtaining a reactive self-test. Methods We conducted an online survey among Spanish resident MSM recruited mainly in...
Article
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We analysed patterns of sexualized drug use (SDU) and pinpointed the one with the highest risk for the acquisition/transmission of HIV/Sexually Transmitted Infections (STIs) in a sample of men who have sex with men (MSM) residing in Spain. Additionally, we also identified the most affected subpopulations by highest risk SDU pattern. In 2016, we pro...
Article
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Background Late HIV diagnosis remains frequent among the gay, bisexual, and other men who have sex with men (GBMSM) population across Europe. HIV self-sampling could help remove barriers and facilitate access to testing for this high-risk population. Objective We assessed the capacity of HIV self-sampling to increase the testing frequency among GB...
Article
Background: Alcohol is associated with all-cause mortality increase. However, when this increase takes place has not been clearly established. The objective of this study was to establish the levels of alcohol consumption that can be considered low risk for overall mortality. Methods: Systematic review of cohort studies published since 2014 that...
Technical Report
Full-text available
La estimación de la mortalidad atribuible a alcohol en la población es un componente esencial a la hora de conocer el impacto global del alcohol sobre el bienestar humano, y puede utilizarse para determinar prioridades, asignar recursos en salud pública y evaluar las políticas relacionadas con el alcohol. En España las estimaciones disponibles se h...
Preprint
BACKGROUND Late HIV diagnosis remains frequent among the gay, bisexual, and other men who have sex with men (GBMSM) population across Europe. HIV self-sampling could help remove barriers and facilitate access to testing for this high-risk population. OBJECTIVE We assessed the capacity of HIV self-sampling to increase the testing frequency among GB...
Article
Full-text available
Background: We analyse unprotected anal intercourses (UAI) self-reported by a sample of men who have sex with men (MSM), by their future testing intentions and past testing history to identify undertested subpopulations that could be contributing to onward transmission. Methods: We recruited MSM through gay dating websites in Spain from Septembe...
Article
Introduction: We assessed poor linkage to HIV care in a sample of HIV positive men who have sex with men (MSM) diagnosed in Spain. Methods: From 2012 to 2013 we recruited a sample of MSM mainly through gay-dating websites. Poor linkage to care was defined as receiving the first CD4 count >3 months after HIV diagnosis. We performed a logistic reg...
Article
INTRODUCTION: We assessed poor linkage to HIV care in a sample of HIV positive men who have sex with men (MSM) diagnosed in Spain. METHODS: From 2012 to 2013 we recruited a sample of MSM mainly through gay-dating websites. Poor linkage to care was defined as receiving the first CD4 count >3 months after HIV diagnosis. We performed a logistic regre...
Article
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"Hidden populations" are difficult to identify because they have stigmatizing or illegal characteristics. For that reason, determining their size or prevalence in certain contexts is complicated. In those populations, traditional or direct methods, as population surveys, do not usually serve for this purpose, but indirect methods, based on incomple...
Article
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Objective: To analyze the mortality trend in Spain before, during and after the economic crisis and austerity policies in the working-age population. Methods: From 2005 to 2016 we calculated the annual all-cause mortality rate and the annual mortality rate from the main causes of death in the population aged 15 to 64. We also estimated the linea...
Article
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Resumen Objetivo Describir la evolución de la morbilidad psíquica en la población adulta española en 2006, 2011 y 2017. Estudiar la salud mental en 2017, determinando la prevalencia de morbilidad psíquica, consumo de psicofármacos, diagnóstico y salud autopercibida. Todo ello tanto en el ámbito nacional como por comunidades autónomas, y diferencia...
Article
Summary: The aim of the study is to evaluate the influence of antiretroviral treatment on health-related quality of life (HRQOL) of three groups of HIV-positive inmates: those who are taking antiretroviral treatment, those who are not on treatment as it has not yet been indicated, and those who refuse to take treatment even though it has been recom...
Article
“Hidden populations” are difficult to identify because they have stigmatizing or illegal characteristics. For that reason, determining their size or prevalence in certain contexts is complicated. In those populations, traditional or direct methods, as population surveys, do not usually serve for this purpose, but indirect methods, based on incomple...
Article
Full-text available
The aim of this study was to estimate the prevalence of binge drinking by regions in Spain and assess the effect of individual and contextual factors related to this drinking pattern in adolescents. A cross-sectional study was performed with data from the 2014 Spanish School Survey on Drug Use (ESTUDES) in students aged 14-18 years (N = 34,259). Th...
Article
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Estimating the prevalence of the so-called “hidden populations” can be challenging, because the identification of its members is difficult due to their socially sanctionable or illegal behaviours. This article provides a critical review of the most widely used methods for estimating the size of a hard-to-reach population. All are indirect methods,...
Article
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Estimating the prevalence of the so-called "hidden populations" can be challenging, because the identification of its members is difficult due to their socially sanctionable or illegal behaviors. This article provides a critical review of the most widely used methods for estimating the size of a hard-to-reach population. All are indirect methods, b...
Article
Introduction and aims: Amphetamine-type stimulants (ATS) are a putative cause of stroke with high abuse potential. We aim to systematically review the association between use of ATS and stroke. Design and methods: To assure a sensitive search strategy, a broad definition of ATS was used. Cochrane Plus, EMBASE, IBECS/Lilacs, ISI WOK, Medline and...
Article
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Objective To compare the risk for all cause and overdose mortality in people with opioid dependence during and after substitution treatment with methadone or buprenorphine and to characterise trends in risk of mortality after initiation and cessation of treatment. Design Systematic review and meta-analysis. Data sources Medline, Embase, PsycINFO, a...
Article
Background: Macroeconomic fluctuations can impact differentially on alcohol-related problems across sociodemographic groups. We assess trend changes in directly alcohol-attributable (DAA) mortality in the population aged 25-64 during the post-2008 recession in Spain according to employment status and other sociodemographic factors. Methods: Nati...
Article
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Objective: To determine differences between men and women in hazardous drinking, heavy cannabis use and hypnosedative use according to educational level and employment status in the economically active population in Spain. Method: Cross-sectional study with data from 2013 Spanish Household Survey on Alcohol and Drugs on individuals aged 25-64 [n...
Article
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Objective: To provide indicators to assess the impact on health, its social determinants and health inequalities from a social context and the recent economic recession in Spain and its autonomous regions. Methods: Based on the Spanish conceptual framework for determinants of social inequalities in health, we identified indicators sequentially f...
Article
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Background: National estimates on per capita alcohol consumption are provided regularly by various sources and may have validity problems, so corrections are needed for monitoring and assessment purposes. Our objectives were to compare different alcohol availability estimates for Spain, to build the best estimate (actual consumption), characterize...
Article
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Sexually transmitted infections (STIs) are recognized as one of the conditions in which HIV testing is most clearly indicated. We analyse whether people diagnosed with an STI are being tested for HIV according to the experience of participants in an outreach rapid testing programme in Spain. Between 2008 and 2010, 6293 individuals underwent rapid t...
Article
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Background: To estimate the incidence of hazardous drinking in middle-aged people during an economic recession and ascertain whether individual job loss and contextual changes in unemployment influence the incidence rate in that period. Methods: Longitudinal study based on two waves of the SHARE project (Survey of Health, Ageing and Retirement i...
Article
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Factors explaining disparities in risk of substance use between immigrants and natives and between immigrant subgroups are poorly understood. We aimed to describe such disparities and identify some explanatory factors in Spain. Participants were residents aged 15-64 years from 2005 to 07 nationally representative surveys. Outcomes were prevalences...
Article
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Background: A low dietary diversity score (DDS) and low consumption of food from animal sources (ASF) are among the factors related to malnutrition in school-aged children living in Libo Kemkem and Fogera (Ethiopia). Objectives: This study aimed to identify associated determinants for low dietary diversity and lack of consumption of ASF. Method...
Article
In recent years, the immigrant population has substantially increased in Spain. However, there is a lack of information in the knowledge of alcohol abuse among Spanish immigrants. We describe the epidemiology of alcohol abuse among foreign-born immigrants versus Spanish natives. We carried out a cross-sectional study that uses data from the Europea...
Article
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A pesar del gran incremento de la poblacion inmigrante en los ultimos anos, su uso de alcohol esta poco estudiado. Se describe la epidemiologia del consumo de riesgo de alcohol en la poblacion inmigrante residente en Espana, frente a la nativa. Se emplearon datos de 22188 respondentes a la Encuesta Europea de Salud de 2009, de los que 3162 eran ext...
Article
The effects of adolescent- and parental-birthplace and country-of-origin contextual factors on substance use among adolescents with recent immigrant background (ARIBs) are poorly understood. We aimed to assess these effects and identify the main mediating factors in Spain. Participants were 12,432 ARIBs (≥1 foreign-born parent) and 75,511 autochtho...
Article
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Cohort studies on hepatitis C virus (HCV) among drug injectors are scarcer than studies on HIV. Combined harm reduction interventions (HRIs) can prevent HCV infection. Spain has a medium-high coverage of HRIs. 513 young heroin users who injected drugs in the past 12 months (recent injectors) were street-recruited in 2001-2003 and followed until 200...
Article
AimsA systematic review and meta-analysis were conducted to synthesize results from cohort studies on initiation into drug injection among vulnerable populations, to quantify heterogeneity in the estimated incidence rates of drug injection, and to identify potential sources of heterogeneity and bias.MethodsMEDLINE, EMBASE, PsycINFO, and LILACS were...
Article
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Drug addiction and psychiatric disorders are frequently concomitant; however, few studies have investigated the impact of psychiatric disorders other than substance use disorder (SUD) on health-related quality of life (HRQoL) in drug users not in treatment. We studied the association of psychiatric disorders other than SUD with HRQoL in a street-re...
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Introduction: The present study describes the distribution of selected micronutrients and anaemia among school-aged children living in Libo Kemkem and Fogera (Amhara State, Ethiopia), assessing differences by socio-demographic characteristics, health status and dietary habits. Methods: A cross-sectional survey was carried out during May-December...
Article
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Aims To investigate baseline and concurrent predictors of non-use of illicit heroin among participants randomized to injectable opioids in the North American Opiate Medication Initiative (NAOMI) clinical trial. Methods NAOMI was an open-label randomized controlled trial comparing the effectiveness of injectable diacetylmorphine and hydromorphone f...
Article
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Introduction Little information is available on malnutrition-related factors among school-aged children ≥5 years in Ethiopia. This study describes the prevalence of stunting and thinness and their related factors in Libo Kemkem and Fogera, Amhara Regional State and assesses differences between urban and rural areas. Methods In this cross-sectional...
Article
Background Both cocaine use and strokes impact public health. Cocaine is a putative cause of strokes, but no systematic review of the scientific evidence has been published. Methods All relevant bibliographic-databases were searched until January 2014 for articles on the epidemiological association between cocaine use and strokes. Search strings w...
Article
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Alcohol affects the brain and most organs and systems, and its use is related to a large number of health problems. These include mental, neurological, digestive, cardiovascular, endocrine, metabolic, perinatal, cancerous, and infectious diseases, as well as intentional and non-intentional injuries. Physiopathological mechanisms still remain unrave...
Article
The aim of this paper is to describe the available methods to quantify the main health and social harms related to alcohol consumption in the population and to provide recommendations to improve research on these issues. Methods using individual and aggregate level data for the study of the relationship between alcohol consumption and related harms...
Article
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El objetivo de este trabajo es describir los principales métodos disponibles para cuantificar los daños sociales y sanitarios relacionados con el alcohol en la población y hacer recomendaciones para mejorar la investigación sobre estos aspectos. Se consideran los métodos para estudiar la naturaleza de la relación entre el consumo de alcohol y los d...