Hugo Staines M.D.

• M.D.
• CEO at Consejo Mexicano de Cirugía Pediátrica

En éste capitulo se presentanlos resultados de una investigación transversal y aleatoria en casi 3000 niños de escuelas públicas y privadas de Ciudad Juares Chih Mexico realizada en 2010, mediante estudio de tipo observacional y transversal con muestreo aleatorio. La muestra se calculó tanto para los escolares como para las escuelas participantes c...

Objective: Describe sexual attitudes and behaviors, and prevalence of condom use among students in a mexican university on the Mexico-United States border Material and methods: A descriptive study with a sample of 561 university students who gave informed consent prior to the application of a questionnaire that they deposited in a closed and sealed...

Abstract Introduction: Bronchial rupture is an infrequent but potentially serious complication in blunt thoracic trauma, with an associated mortality of 30 %, whereas when accompanied with severe vascular injuries it may reach 50 %. Clinical case: An eight year old girl was run over by a moving motor vehicle. On the sixth week following the acciden...

El conducto arterioso es la parte distal del sexto arco aórtico izquierdo que en el feto conduce el flujo sanguíneo de la arteria pulmonar a la aorta, sin pasar por los pulmones. Al iniciarse la respiración, la resistencia pulmonar baja abruptamente, revirtiendo así, el sentido del flujo sanguíneo. Por lo tanto, al aumentar los niveles de oxígeno e...

Research increasingly recognizes the importance of social and built environments in shaping health, including risks for and outcomes related to HIV and sexually transmitted infections (STI), but research on sex work venues is limited. We use latent class analysis to identify patterns of sex work venue characteristics and factors associated with cla...

Decriminalization of sex work is increasingly promoted as a structural measure to improve the health of vulnerable groups. In México, sex work is not illegal, but knowledge of policies’ street-level impact is limited. This study describes typologies of police violence against female sex workers who inject drugs (FSWID), identifying risk and protect...

This paper evaluates correlates of trichomoniasis among female sex workers who inject drugs (FSWIDs) in two Mexico-US border cities. HIV-negative FSWIDs aged 18 years or older were enrolled in a study between 2008 and 2010 in Tijuana and Ciudad Juarez (Cd.), Mexico. All participants underwent a baseline interviewer-administered survey and did a rap...

Sex work around the world takes place under conditions of structural violence and vulnerability. The Mexico-U.S. border region is characterized by the presence of factors that increase the risk for health harms among female sex workers (FSW); located in this context, the risk environments of Tijuana and Ciudad Juárez have similar yet distinct chara...

This study describes the advantages and disadvantages of using the rabbit as an animal model for surgical training in the Nissen laparoscopic fundoplication technique. Six New Zealand rabbits weighing between 2.5 and 3.5 kg were used. Nissen fundoplication was performed successfully in five out of six animals. Average procedure time was 47 minutes,...

This study examined service provider perceptions of feasibility and acceptability of implementing evidence-based practices for preventing HIV/AIDS and STIs in female sex workers (FSWs) in Mexico. Semi-structured interviews were conducted with 124 directors, supervisors, and counselors from 12 reproductive health clinics located throughout Mexico pa...

Objective: To identify correlates of HIV/STI prevalence among 13 cities with varying sizes of female sex worker (FSW) populations and municipal characteristics in Mexico. Materials and methods: FSWs underwent interviews and testing for HIV, syphilis, gonorrhea and chlamydia. Logistic regression explored variations in HIV/STI prevalence. Results...

Background: Research has documented consistent associations between entry into sex work as a minor and sexual HIV risk. However, previous studies have not examined whether substance use and related HIV risk are elevated among those who enter sex work under age 18. Methods: Quantitative data were collected via time-location sampling of 603 female...

Trafficked adolescent girls are at increased risk for sexual and physical abuse, HIV and STI (sexually transmitted infections) acquisition, mental health, and reproductive issues. While sex trafficking, in relation to adverse health outcomes, has been documented in prior research, this has been mainly explored once girls and women are already in th...

Objective The overall aim of this paper is to examine effectiveness of an evidence-based intervention in community settings, and the factors associated with effectiveness. Limited research in the area of HIV prevention has focused on evaluating intervention program effectiveness in real-world settings. Methods We implemented an efficacious theory-...

Utilizing mixed methods, we examined intimate partner violence (IPV) behaviors among 428 female sex workers (FSWs) who use drugs and their noncommercial male partners in Tijuana and Ciudad Juarez, Mexico. Half of all participants reported perpetrating and experiencing at least one type of IPV behavior in the past year. In interviews, drug use emerg...

Background: Bacterial vaginosis (BV) is the most common cause of vaginitis among women worldwide and is associated with increased susceptibility to sexually transmitted infections (STIs), including HIV. We aimed to determine the impact of the HIV risk environment on BV among female sex workers who inject drugs (FSW-PWIDs) in Tijuana and Ciudad Jua...

Female sex work is often perceived as women being controlled by men. We used surveys and qualitative interviews with female sex workers and their intimate partners in two Northern Mexico cities to examine couples’ own perceptions of their relationships and male partners’ involvement in sex work. Among 214 couples, the median age was 34 and relation...

Although human trafficking is recognized as a major human rights violation, there is limited evidence regarding the vulnerabilities that contribute to female adolescents’ risk of being forced or coerced into the sex trade. Vulnerabilities such as gender-based violence, economic and social inequalities have been shown to shape the risk of sexual exp...

Background Intervention fidelity and participant-level variables, such as negative attitudes towards condoms, are important variables to consider in the successful implementation of evidence-based HIV prevention interventions. Mujer Segura is an intervention that has been shown to be efficacious at reducing condomless sex for female sex workers (FS...

Introduccion : La cirugia laparoscopica pediatrica establece nuevos desafios para los cirujanos; Consecuentemente, existe la necesidad de una formacion adecuada antes de realizar los procedimientos directamente en los pacientes. Han sido disenados diferentes modelos para el entrenamiento quirurgico, incluyendo simuladores virtuales y animales vivos...

Female sex workers (FSWs) often report inconsistent condom use with clients and noncommercial male partners, yet changes in condom use with various partner types during participation in observation studies remains underexplored. This longitudinal study of 214 FSWs and their male, noncommercial partners in the Mexico-U.S. border region, where HIV pr...

Background Youth smoking trends among Latin American countries, including Mexico, are on the rise. Notably, although the high prevalence of smoking in teens has been well documented in the literature, few studies have evaluated the impact of smoking and secondhand smoke (SHS) exposure on their respiratory system. Objective To investigate the effec...

Increasingly, ‘place’, including physical and geographical characteristics as well as social meanings, is recognized as an important factor driving individual and community health risks. This is especially true among marginalized populations in low and middle income countries (LMIC), whose environments may also be more difficult to study using trad...

Observational checklist questions for assessing indoor and outdoor sex work venue environments. (DOCX)

Minimal dataset for comparing venue checklist to participant reported venue characteristics. (SAV)

Background: Cigarette smoking is the leading cause of preventable death worldwide. Tobacco use and secondhand-tobacco smoke (SHS) exposure are classified as a pediatric disease. In Mexico, the prevalence of smoking has decreased among adults but paradoxically increased among adolescents, particularly among young females. This study was designed to...

Background: We evaluated the cost-effectiveness of combined single session brief behavioral intervention, either didactic or interactive (Mujer Mas Segura, MMS) to promote safer-sex and safer-injection practices among female sex workers who inject drugs (FSW-IDUs) in Tijuana (TJ) and Ciudad-Juarez (CJ) Mexico. Data for this analysis was obtained f...

We know little about predictors of injection drug cessation and relapse among female sex workers who inject drugs (FSW-PWID) at the US-Mexico border. Among HIV-negative FSW-PWID taking part in a behavioral intervention study in Tijuana and Ciudad Juárez, Cox regression was used to identify predictors of time to first cessation of injection, which w...

Introduction: Paediatric laparoscopic surgery provides new challenges for surgeons; therefore there is a need for adequate training before performing procedures directly on patients. Several different models were designed for training, including both virtual simulators and live animals. However, training with animal models is the most appropriate m...

Aims: Risk environment factors may influence unprotected sex between female sex workers who are also injection drug users (FSW-IDUs) and their regular and non-regular clients differently. Our objective is to identify correlates of unprotected vaginal sex in the context of client type. Methods: A cross-sectional survey of 583 FSW-IDUs in Tijuana...

Aims: Risk environment factors may influence unprotected sex between female sex workers who are also injection drug users (FSW-IDUs) and their regular and non-regular clients differently. Our objective is to identify correlates of unprotected vaginal sex in the context of client type. Methods: A cross-sectional survey of 583 FSW-IDUs in Tijuana and...

Objective This study examined service provider perceptions of requirements for successful sustainment of an efficacious intervention for preventing HIV/AIDS and STIs in female sex workers (FSWs) in Mexico. Methods Semi-structured interviews were conducted with 77 leaders and counselors from 12 community-based reproductive health clinics located th...

We aim to use conditional or moderated mediation to simultaneously test how and for whom an injection risk intervention was efficacious at reducing receptive needle sharing among female sex workers who inject drugs (FSWs-IDUs) in Mexico. Secondary analysis of data from a randomized trial. A total of 300 FSW-IDUs participated in Mujer Mas Segura in...

Female sex workers (FSWs) are disproportionately affected by both HIV and gender-based violence, such as that perpetrated by clients (CPV). We used a structural determinants framework to assess correlates of physical or sexual CPV in the past 6 months among FSWs in the Mexico/U.S. border cities of Ciudad Juárez and Tijuana. Bivariate and multivaria...

The current wave of interest in human trafficking and the commercial sexual exploitation of children has exposed a lack of knowledge about the vulnerabilities leading to underage entry into sex work. This knowledge is necessary for the development of effective prevention programs to identify girls who are most at-risk, especially in Latin America,...

Purpose: This study aims to describe (a) the nature and context of sex trafficking (defined as forced/coerced entry into sex work or entry as a minor) and (b) the social and health-related vulnerabilities to sex trafficking along the U.S.-Mexico border. Methods: This mixed methods study surveyed 600 female sex workers (FSWs) identified via venue-...

We know little about predictors of injection drug cessation and relapse among female sex workers who inject drugs (FSW-PWID) at the US-Mexico border. Among HIV-negative FSW-PWID taking part in a behavioral intervention study in Tijuana and Ciudad Juárez, Cox regression was used to identify predictors of time to first cessation of injection, which w...

A significant body of research among female sex workers (FSWs) has focused on individual-level HIV risk factors. Comparatively little is known about their non-commercial, steady partners who may heavily influence their behavior and HIV risk. This cross-sectional study of 214 FSWs who use drugs and their male steady partners aged ≥18 in two Mexico-U...

We evaluated brief combination interventions to simultaneously reduce sexual and injection risks among female sex workers who inject drugs (FSW-IDUs) in Tijuana and Ciudad Juarez, Mexico during 2008-2010, when harm reduction coverage was expanding rapidly in Tijuana, but less so in Juarez. FSW-IDUs ≥18 years reporting sharing injection equipment an...

CONSORT Checklist. (DOC)

Trial Protocol. (PDF)

Background: To investigate individual, interpersonal, and social-structural factors associated with involuntary sex exchange among female sex workers (FSWs) along the Mexico-U.S. border. Methods: In 2010 to 2011, 214 FSWs from Tijuana (n = 106) and Ciudad Juarez (n = 108) aged ≥ 18 years who reported lifetime use of heroin, cocaine, crack, or me...

Objectives: To investigate the prevalence and correlates of concurrent (overlapping) sexual partnerships among female sex workers (FSWs) and their non-commercial male partners in two Mexico-US border cities. Methods: A cross-sectional survey of FSWs and their non-commercial male partners was conducted in Tijuana and Ciudad Juárez, Mexico (2010-2...

https://deepblue.lib.umich.edu/bitstream/2027.42/138414/1/jia218442.pdf

Background Female sex workers who inject drugs (FSW-IDUs) are at risk of acquiring HIV, sexually transmitted infections (STI) and blood-borne infections through unprotected sex and sharing injection equipment. We conducted a 2×2 factorial randomized controlled trial to evaluate combination interventions to simultaneously reduce sexual and injection...

Appendix A.

Appendix B.

Female sex workers who inject drugs (FSW-IDUs) face elevated risk for HIV/STIs and constitute a key population for public health prevention. Through direct and indirect pathways including human rights violations, policing practices like syringe confiscation can compound FSW-IDU health risk and facilitate the spread of disease. We studied correlates...

The purpose of this study was to examine whether a brief behavioural intervention promoting condom use among female sex workers (FSWs) and their clients had the added benefit of increasing condom use among FSWs and their steady, non-commercial partners (e.g. husbands, boyfriends). Participants were 362 FSWs, aged ≥18 years, living in Tijuana or Ciu...

RESUMEN La malnutrición es un problema importante de salud pública y es el resultado de una disminución de la ingestión (desnutrición) o de un aporte excesivo (hipernutrición). Ambas condiciones son el resultado de un desequilibrio entre las necesidades corporales y el consumo de nutrientes esenciales. Objetivo. Determinar la prevalencia de malnutr...

To identify correlates of active syphilis infection among female sex workers (FSWs) in Tijuana and Ciudad Juarez. Cross-sectional analyses of baseline interview data. Correlates of active syphilis (antibody titers >1 : 8) were identified by logistic regression. Setting Tijuana and Ciudad Juarez, two Mexican cities on the US border that are situated...

Female sex workers (FSWs) aged ≥18 years without known HIV infection living in Tijuana and Ciudad Juarez, Mexico who had recent unprotected sex with clients underwent interviews and testing for chlamydia and gonorrhoea using nucleic acid amplification. Correlates of each infection were identified with logistic regression. Among 798 FSWs, prevalence...

Trial Protocol (0.19 MB DOC)

CONSORT Checklist (0.19 MB DOC)

Previous research demonstrated efficacy of a brief behavioral intervention to reduce incidence of HIV and sexually transmitted infections (STIs) among female sex workers (FSWs) in Tijuana and Ciudad Juarez, Mexico, cities on Mexico's border with the US. We assessed this intervention's cost-effectiveness. A life-time Markov model was developed to es...

To examine correlates of early initiation into sex work in two Mexico-U.S. border cities. Female sex workers (FSWs) >/=18 years without known HIV infection living in Tijuana and Ciudad Juarez who had recent unprotected sex with clients underwent baseline interviews. Correlates of initiation into sex work before age 18 were identified with logistic...

Abstract Objective: Describe sexual attitudes and behaviors, and prevalence of condom use among students in a mexican university on the Mexico-United States border Material and methods: A descriptive study with a sample of 561 university students who gave informed consent prior to the application of a questionnaire that they deposited in a closed a...

Objective: Describe sexual attitudes and behaviors, and prevalence of condom use among students in a mexican university on the Mexico-United States border Material and methods: A descriptive study with a sample of 561 university students who gave informed consent prior to the application of a questionnaire that they deposited in a closed and sealed...

The present study examined the applicability of the Social Ecological Model for explaining condom use in a sample of female sex workers (FSWs) (N=435) participating in a behavioral intervention to increase condom use in Tijuana, Mexico. Using a multigroup path analysis, we compared women who work in bar settings (n=233) to those who worked on the s...

We recently showed efficacy of an intervention to increase condom use among female sex workers (FSWs) in Tijuana and Ciudad Juarez, situated on the Mexico-United States border. We determined whether increases in condom use were predicted by social cognitive theory and injection drug user status among women randomized to this intervention. Four hund...

This study examined histories of past emotional, physical, and sexual abuse as correlates of current psychological distress using data from 916 female sex workers (FSWs) who were enrolled in a safer-sex behavioral intervention in Tijuana and Ciudad (Cd.) Juarez, Mexico. We hypothesized that histories of abuse would be associated with higher symptom...

We examined the efficacy of a brief behavioral intervention to promote condom use among female sex workers in Tijuana and Ciudad Juarez, Mexico. We randomized 924 female sex workers 18 years or older without known HIV infection living in Tijuana and Ciudad Juarez who had recently had unprotected sex with clients to a 30-minute behavioral interventi...

TIJUANA f RAGA M.A., DÁ VILA w., VARGAS-OJEDA A.C l BUCARDO J., PATIERSON-TIIOMAS L. 2 STAINES H.S.' RESUMEN Objetivo: Describir las actitudes en cuanto al uso del condón y comportamiento sexual entre los estudiantes de una comunidad universitaria mexicana. Material y métodos: Estudio transversal descriptivo en 504 estudiantes universitarios median...

RESUMEN Introducción: Las hernias lumbares son resultado de un defecto en la pared posterior abdominal. Son infrecuentes en niños, en quienes se han informado sólo 45 casos: 19 fueron de naturaleza congénita. Es común que se acompañen de otras malformaciones. Caso clínico: Niña de 45 días de edad con hernia lumbar congénita y síndrome lumbocostover...

We examined human immunodeficiency virus (HIV) prevalence and correlates among female sex workers (FSWs) in Tijuana and Ciudad Juarez, 2 large cities on the Mexico-US border. FSWs aged > or =18 years underwent interviews and testing for HIV, syphilis, gonorrhea, and chlamydia. Logistic regression identified factors associated with HIV infection. In...

HIV prevalence is increasing among female sex workers (FSWs) in Tijuana and Ciudad Juarez, 2 Mexican cities on the US border. Quasilegal prostitution in both cities attracts large numbers of sex tourists. We compared FSWs with and without US clients in both cities. FSWs aged > or =18 years reporting unprotected sex with > or =1 client within the la...

To characterize the overlap between injection drug use and sex work by women in Tijuana and Cd. Juarez, situated on the Mexico-U.S. border. FSWs aged > or =18 years who were not knowingly HIV-positive and reported having unprotected sex with > or =1 client in the prior 2 months underwent interviews and testing for HIV, syphilis, gonorrhea and Chlam...

It has been reported that nearly one in four adolescents actively smoke and three in four are exposed to SHS in Mexico. Therefore, public health initiatives that aim to prevent initiation and assist in the reduction of SHS exposure of adolescents need to be employed as early as middle school

Background: Active and second hand smoke (SHS) exposure can have significant effects on the lung function of adolescents with reductions in forced vital capacity (FVC), forced expiratory volume in one second (FEV1), and forced mid-expiratory flow rate (FEF25-75%) of between 5 and 10%. Methods: A cohort study was undertaken on a random sample of th...

Background-- Cigarette smoking is a risk factor for cardiovascular disease among adolescents. The study objectives were two fold: (1) To describe the tobacco use and environmental tobacco smoke (ETS) exposure profiles of adolescents attending middle school (average age 14.3 years old), and (2) to explore the association between tobacco use and ETS...

The purpose of this paper is to examine the price for sex with and without a condom for female sex workers (FSWs), as well as predictors for these prices, in two Mexican border cities. Data were used from a larger study of adult FSWs in Mexico. Results revealed that in Tijuana and Ciudad Juarez the price for sex without a condom was higher than the...

This study assessed the smoking practices, risk perception of smoking, and environmental tobacco smoke (ETS) exposure among adolescents in Ciudad Juárez, Mexico. We used a cross-sectional method to examine the smoking practices, risk perception of smoking, and ETS exposure of 6th-grade students (N=506), aged 11-13 years, attending six randomly sele...

Female sex workers (FSWs) have been documented to have high rates of sexually transmitted diseases and HIV in many parts of the world. However, little work has been done to characterize the prevalence of these infections along the U.S.-Mexican border, where sexual tourism and culturally sanctioned sex work among nationals is widespread. The objecti...

Female sex workers (FSWs) 18 or older who reported having unprotected sex with at least one client within the previous month were recruited in Tijuana and Ciudad Juarez, Mexico. After a baseline assessment, participants were randomly assigned to either: (1) Proyecto Comparte Sexo Mas Seguro (“Share Safer Sex”), a theory-based counseling interventio...

The purpose of this study was to examine parental beliefs and perceptions of the role that schools should play in implementing smoking prevention activities for their children in Juárez, Mexico. The parents were of sixth grade students from six randomly selected middle schools. Schools were classified by school setting and socioeconomic status. A t...

Abstract ;Persistent Hyperinsulinemic Hypoglucemia in a newborn:A clinical case a review of the literature Staines OH, González AA, Soto GS, Staines AR The disease known as Persistent Hyperinsulinemic Hypoglycemia of Infancy, known in the past as Nesidioblastosis, is a genetic disease that is generated by an inappropriate secretion of insulin, the...

En 1978 el maestro Federico Gómez tuvo la feliz idea de escribir esta obra y para tal fin convoco a un selecto grupo de pediatras que serían los redactores: El propio Federico Gómez, Jesús Alvarez de los Cobos*, Ignacio Ávila Cisneros*, Lázaro Benavides Vázquez, Luis Berlanga Berumen*, Ernesto Díaz del Castillo, José Felipe Franco, Silvestre Frenk,...

This article has as its main objective to divulge the development and optimization of surgical-technical training procedures for pediatric surgeons required to correct esophageal atresias. Included are the esophageal anastomosis techniques used in New Zealand rabbits, proposed as an experimental model, to later be reproduced and therefore decrease...

This article describes a surgical technique used in New Zeland rabbits to practice the repair of a Esophageal atresia , by doing so it prepairs the residents in pediatric surgery to improve their surgical skills and diminish the complications of an opertation performed in a New Born with this dissease .

Background: HIV prevalence is increasing among female sex work- ers (FSWs) in Tijuana and Ciudad Juarez, 2 Mexican cities on the US border. Quasilegal prostitution in both cities attracts large numbers of sex tourists. We compared FSWs with and without US clients in both cities. Methods: FSWs aged >18 years reporting unprotected sex with >1 client...

Tesis (Licenciatura)--Escuela de Medicina. Universidad Autónoma de Chihuahua, 1974.