Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 25
Filtrar
1.
BMC Infect Dis ; 20(1): 851, 2020 Nov 16.
Artículo en Inglés | MEDLINE | ID: mdl-33198672

RESUMEN

BACKGROUND: HIV, HBV and HCV infections continue to represent major health concerns, especially among key at-risk populations such as men who have sex with men (MSM), people who inject drugs (PWIDs), transgender women (TGW) and sex workers (SW). The objective of the ANRS-CUBE study was to evaluate the acceptability of a healthcare, community-based strategy offering a triple rapid HIV-HBV-HCV testing, and HBV vaccination, targeted at three priority groups (MSM, PWIDs and TGW/SWs), in three community centers, in the Paris area. METHODS: This longitudinal multicentric non-randomized study included all adult volunteers attending one of the three specialized community centers in Paris, between July 2014 and December 2015. HIV, HBV and HCV status and acceptability of HBV vaccination were evaluated. RESULTS: A total of 3662, MSM, 80 PWIDs and 72 TGW/SW were recruited in the three centers respectively. Acceptability of rapid tests was 98.5% in MSM and 14.9% in TGW/SWs, but could not be estimated in PWIDs since the number of users attending and the number of proposals were not recorded. User acceptability of HBV vaccination was weak, only 17.9% of the eligible MSM (neither vaccinated, nor infected) agreed to receive the first dose, 12.2% two doses, 5.9% had a complete vaccination. User acceptability of HBV vaccination was greater in PWIDs and TGW/SWs, but decreased for the last doses (66.7 and 53.3% respectively received a first dose, 24.4 and 26.7% a second dose and 6.7 and 0% a third dose). Fifty-three participants (49 MSM and 4 PWIDs) were discovered HIV positive, more than half with a recent infection. All but two HIV positive participants were linked to appropriate care in less than one month. CONCLUSIONS: Rapid HIV-HCV-HBV screening showed a very high level of acceptability among MSM. Efforts need to be made to improve immediate acceptability for HBV vaccination, especially among MSM, and follow-up doses compliance. Our results show the important role of community centers in reaching targets, often fragile, populations, while also suggesting the need to reinforce on-site human support in terms of testing and vaccination, especially when addressing PWIDs.


Asunto(s)
Infecciones por VIH/diagnóstico , VIH-1/inmunología , VIH-2/inmunología , Hepacivirus/inmunología , Virus de la Hepatitis B/inmunología , Hepatitis B Crónica/diagnóstico , Hepatitis C Crónica/diagnóstico , Vacunación , Vacunas Virales/inmunología , Adolescente , Adulto , Servicios de Salud Comunitaria , Femenino , Infecciones por VIH/epidemiología , Infecciones por VIH/virología , Hepatitis B Crónica/epidemiología , Hepatitis B Crónica/virología , Hepatitis C Crónica/epidemiología , Hepatitis C Crónica/virología , Homosexualidad Masculina , Humanos , Estudios Longitudinales , Masculino , Tamizaje Masivo/métodos , Paris/epidemiología , Proyectos Piloto , Estudios Prospectivos , Factores de Riesgo , Pruebas Serológicas , Trabajadores Sexuales , Minorías Sexuales y de Género , Abuso de Sustancias por Vía Intravenosa , Personas Transgénero , Adulto Joven
2.
Addict Behav ; 107: 106393, 2020 08.
Artículo en Inglés | MEDLINE | ID: mdl-32200197

RESUMEN

This systematic review seeks to evaluate the efficacy of interventions aimed at preventing unintended pregnancies in women using psychoactive substances. Seven electronic databases (Medline, EMBASE, CINAHL, Web of Science Core Collection, PsycINFO, Cochrane CENTRAL database) were searched in October 2017. Twenty-two articles met our inclusion criteria. Interventions based on behavior change theory yielded an increase in the initiation of effective contraception as compared with provision of written information materials. The effect was more pronounced when the intervention provided on-site contraceptive counseling and free access to birth control. Financial incentives also seemed to effectively increase women's contraception intake. Case management interventions including pregnant and postpartum women with heavy levels of substance use showed promising results in terms of initiation of contraception, but rates of unintended pregnancy over long-term follow-up were nevertheless elevated. Finally, some interventions integrated family planning services into specialized centers taking care of pregnant and postpartum women with substance abuse. However, most studies aimed at postpartum and post-abortion contraception used a non-comparative design and had a number of methodological flaws. The risk of bias in most studies is high. All interventions with a primary or secondary focus on the prevention of unintended pregnancy in women using psychoactive substances short-term improvements in contraception intake, but it is unclear if these effects last or have any impact on unintended pregnancy rates in the long-term.


Asunto(s)
Aborto Inducido , Embarazo no Planeado , Anticoncepción , Servicios de Planificación Familiar , Femenino , Humanos , Periodo Posparto , Embarazo
3.
BMC Public Health ; 15: 807, 2015 Aug 20.
Artículo en Inglés | MEDLINE | ID: mdl-26289558

RESUMEN

BACKGROUND: The impact of migration and country or region of origin on sexual behaviours and prevention of the sexual transmission of HIV has been scarcely studied in France. The objective of this study was to evaluate if and how individual attitudes of prevention towards HIV infection are different according to country or region of origins in Paris area, France. METHODS: 3006 individuals were interviewed in the Paris metropolitan area in 2010. Outcome variables were (i) the intention of the individual to protect oneself against HIV, and (ii) the adoption of a condom-based approach for protection against HIV. To explore factors associated with these outcomes, we constructed multivariate logistic regression models, first taking into account only demographic variables -including country of origin-, then successively adding socioeconomic variables and variables related to sexual behaviour and HIV perception and prevention behaviour. RESULTS: French and foreign people who have origins in Sub-Saharan Africa declared more intentions to protect themselves than French people with French parents (in foreign men, aOR = 3.43 [1.66-7.13]; in foreign women, aOR = 2.94 [1.65-5.23]), but did not declare more recourse to a condom-based approach for protection against HIV (in foreign men, aOR = 1.38 [0.38-4.93]; in foreign women, aOR = 0.93 [0.40-2.18]). Conversely, foreign women and French women from foreign origin, especially from Maghreb (Northern Africa), reported less intention of protection than French women with French parents. CONCLUSIONS: These results underline the importance of taking culture and origins of target populations into consideration when designing information, education and communication about HIV and sexually transmitted diseases. These results also draw attention to fractions of the general population that could escape from prevention messages.


Asunto(s)
Características Culturales , Emigración e Inmigración , Infecciones por VIH/epidemiología , Conducta Sexual , Adulto , África del Sur del Sahara/etnología , África del Norte/etnología , Estudios de Cohortes , Etnicidad , Femenino , Infecciones por VIH/etnología , Infecciones por VIH/prevención & control , Disparidades en Atención de Salud , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Paris/epidemiología , Enfermedades de Transmisión Sexual/epidemiología , Enfermedades de Transmisión Sexual/etnología , Enfermedades de Transmisión Sexual/prevención & control , Adulto Joven
4.
BMC Infect Dis ; 15: 278, 2015 Jul 22.
Artículo en Inglés | MEDLINE | ID: mdl-26198690

RESUMEN

BACKGROUND: Despite the widespread offer of free HIV testing in France, the proportion of people who have never been tested remains high. The objective of this study was to identify, in men and women separately, the various factors independently associated with no lifetime HIV testing. METHODS: We used multilevel logistic regression models on data from the SIRS cohort, which included 3006 French-speaking adults as a representative sample of the adult population in the Paris metropolitan area in 2010. The lifetime absence of any HIV testing was studied in relation to individual demographic and socioeconomic factors, psychosocial characteristics, sexual biographies, HIV prevention behaviors, attitudes towards people living with HIV/AIDS (PLWHA), and certain neighborhood characteristics. RESULTS: In 2010, in the Paris area, men were less likely to have been tested for HIV at least once during their lifetime than women. In multivariate analysis, in both sexes, never having been tested was significantly associated with an age younger or older than the middle-age group (30-44 years), a low education level, a low self-perception of HIV risk, not knowing any PLWHA, a low lifetime number of couple relationships, and the absence of any history of STIs. In women, other associated factors were not having a child < 20 years of age, not having additional health insurance, having had no or only one sexual partner in the previous 5 years, living in a cohabiting couple or having no relationship at the time of the survey, and a feeling of belonging to a community. Men with specific health insurance for low-income individuals were less likely to have never been tested, and those with a high stigma score towards PLWHA were more likely to be never-testers. Our study also found neighborhood differences in the likelihood of men never having been tested, which was, at least partially, explained by the neighborhood proportion of immigrants. In contrast, in women, no contextual variable was significantly associated with never-testing for HIV after adjustment for individual characteristics. CONCLUSIONS: Studies such as this one can help target people who have never been tested in the context of recommendations for universal HIV screening in primary care.


Asunto(s)
Infecciones por VIH/diagnóstico , Adolescente , Adulto , Anciano , Actitud Frente a la Salud , Estudios de Cohortes , Estudios Transversales , Demografía , Femenino , Francia , Infecciones por VIH/prevención & control , Humanos , Modelos Logísticos , Masculino , Tamizaje Masivo , Persona de Mediana Edad , Análisis Multinivel , Paris , Autoimagen , Conducta Sexual , Clase Social , Adulto Joven
5.
Infect Genet Evol ; 26: 194-202, 2014 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-24907670

RESUMEN

Tuberculosis (TB) is still a serious public health problem, continuing to be an important threat for confined populations. We used spoligotyping to estimate the genotypic clades of Mycobacterium tuberculosis isolates from inmates in two blocks in a southeastern Brazilian prison unit, with TB incidence rate of 8185/100.000. The Latin American Mediterranean (LAM) clade is well represented in the country, and the LAM specific molecular markers, RD(Rio) large sequence polymorphism and the SNP on the Rv3062 [ligB(1212)], were used to characterize spoligotype signatures from prison isolates. Typing of RD(Rio) and ligB increase LAM clade from 66.7% (n=72/108) to 69.4% (n=75). The LAM2 SIT17 (n=23) and SIT179 (n=12) signatures comprised one third of all isolates, followed by Haarlem (11.5%, n=12), T (8.7%, n=9) and X (5.7%, n=6) clades. Strains with unknown signatures represented 5.5% (n=6), and four (3.7%) did not match any lineage. We observed RD(Rio) among 64 (59.2%) isolates, and 54 (50%) were of the LAM clade. In particular, the LAM2/RD(Rio) sub-lineage was significantly associated with clustering (p=0.02) and its frequency was higher (32%) when compared to that of the previous general TB cases in RJ (4.29%). Overall cluster frequency defined by spoligotyping/IS6110-RFLP was 62%. The two evolutionary markers helped to evaluate some LAM signature misconceptions and demonstrate that LAM2/RD(Rio) was found with high frequency, hitherto being unnoticed. All these data, allied to high clustering, imply that public health measures to minimize the escalation of TB in prison is essential, and both spoligotyping as well as RD(Rio) would be useful tools to monitor the effects of the measures with respect to M. tuberculosis lineage variation.


Asunto(s)
Genotipo , Mycobacterium tuberculosis/genética , Polimorfismo Genético , Prisioneros , Prisiones , Tuberculosis/epidemiología , Tuberculosis/microbiología , Adulto , Alelos , Brasil/epidemiología , Frecuencia de los Genes , Humanos , Persona de Mediana Edad , Mycobacterium tuberculosis/aislamiento & purificación , Polimorfismo de Longitud del Fragmento de Restricción , Polimorfismo de Nucleótido Simple , Adulto Joven
6.
BMC Public Health ; 13: 983, 2013 Oct 20.
Artículo en Inglés | MEDLINE | ID: mdl-24139204

RESUMEN

BACKGROUND: Tuberculosis (TB) is a major issue in prisons of low and middle income countries where TB incidence rates are much higher in prison populations as compared with the general population. In the Rio de Janeiro (RJ) State prison system, the TB control program is limited to passive case-finding and supervised short duration treatment. The aim of this study was to measure the impact of X-ray screening at entry associated with systematic screening on the prevalence and incidence of active TB. METHODS: We followed up for 2 years a RJ State prison for adult males (1429 inmates at the beginning of the study) and performed, in addition to passive case-finding, 1) two "cross-sectional" X-ray systematic screenings: the first at the beginning of the study period and the second 13 months later; 2) X-ray screening of inmates entering the prison during the 2 year study period. Bacteriological examinations were performed in inmates presenting any pulmonary, pleural or mediastinal X-ray abnormality or spontaneously attending the prison clinic for symptoms suggestive of TB. RESULTS: Overall, 4326 X-rays were performed and 246 TB cases were identified. Prevalence among entering inmates remained similar during 1st and the 2nd year of the study: 2.8% (21/754) and 2.9% (28/954) respectively, whereas prevalence decreased from 6.0% (83/1374) to 2.8% (35/1244) between 1st and 2nd systematic screenings (p < 0.0001). Incidence rates of cases identified by passive case-finding decreased from 42 to 19 per 1000 person-years between the 1st and the 2nd year (p < 0.0001). Cases identified by screenings were less likely to be bacteriologically confirmed as compared with cases identified by passive-case finding. CONCLUSIONS: The strategy investigated, which seems highly effective, should be considered in highly endemic confined settings such as prisons.


Asunto(s)
Tamizaje Masivo/métodos , Prisiones , Tuberculosis/prevención & control , Rayos X , Adolescente , Adulto , Anciano , Instituciones de Atención Ambulatoria , Brasil/epidemiología , Estudios Transversales , Enfermedades Endémicas , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Prevalencia , Prisioneros , Tuberculosis/diagnóstico , Tuberculosis/epidemiología , Tuberculosis/microbiología , Adulto Joven
7.
J Immigr Minor Health ; 15(4): 842-5, 2013 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-23099525

RESUMEN

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. Results of the study show comparatively low HIV testing rate among Maghrebi and French of Maghrebi origin compared to French with French parents.


Asunto(s)
Emigrantes e Inmigrantes/estadística & datos numéricos , Infecciones por VIH/diagnóstico , Infecciones por VIH/etnología , Tamizaje Masivo/estadística & datos numéricos , Adolescente , Adulto , África del Norte/etnología , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Paris , Adulto Joven
8.
AIDS Care ; 23(12): 1609-18, 2011 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-21711180

RESUMEN

In France, numerous HIV patients still discover their HIV status as a result of AIDS-related symptoms. We investigated factors related to the absence of any HIV testing in men and women separately, using the data from the SIRS cohort, which includes 3023 households representative of the Paris metropolitan area in 2005. The failure to use HIV testing services was studied in relation to individual socio-economic and demographic factors as well as some psychosocial characteristics. The effect of the characteristics of the residential neighbourhood was also analysed using multilevel models. In multivariate analysis, the factors associated with no history of HIV testing in women were an age >44 years, the absence of any pregnancy during the previous 15 years, a low education level, unemployment, to have had no or only one steady relationship in one's lifetime, to have a religious affiliation and to live in a poor neighbourhood. In men, factors were age <30 or >44 years, to have had no or only one steady relationship during one's lifetime, to have a religious affiliation and to perceive oneself as being at low risk of HIV infection. An association according to the "migration origin" was observed among men: foreigners and French men born to (at least) one foreign parent were more likely not to have been tested than French men born to two French parents. We conclude that gender, social and territorial differences exist in HIV testing among people living in the Paris area. More systematic proposals of HIV test in primary care would be an effective policy to overcome these persistent social stratifications.


Asunto(s)
Infecciones por VIH/diagnóstico , Tamizaje Masivo/estadística & datos numéricos , Adolescente , Adulto , Anciano , Estudios de Cohortes , Emigración e Inmigración , Femenino , Conocimientos, Actitudes y Práctica en Salud , Humanos , Masculino , Persona de Mediana Edad , Paris , Características de la Residencia , Factores de Riesgo , Factores Sexuales , Clase Social , Adulto Joven
9.
BMC Fam Pract ; 12: 35, 2011 May 18.
Artículo en Inglés | MEDLINE | ID: mdl-21592343

RESUMEN

BACKGROUND: The development of resistance to antimicrobial therapy by Neisseria gonorrhoeae causes on-going problems for individual case management of gonorrhoea. Surveillance data about N. gonorrhoeae have indicated an increase in the incidence of gonorrhoea in France in 2006. As a consequence of the development of antibiotic resistance in N. gonorrhoeae, French guidelines excluded fluoroquinolones as a standard treatment for N. gonorrhoeae. Ceftriaxone became the recommended treatment, associated with azithromycin for Clamydia trachomatis infection. Our aim was to describe the practice patterns of general practitioners (GPs) in managing the antibiotic treatment of patients with symptoms suggestive of uncomplicated male urethritis. METHODS: We developed a clinical vignette describing a man with typical gonococcal urethritis symptoms to elicit questions about antibiotic treatment. We mailed the electronic questionnaire to a random sample of 1000 French GPs belonging to the Sentinelles Network. RESULTS: By the end of the survey period, 350 vignettes were received, yielding a response rate of 35%. Sixty-six GPs (20.2%) prescribed the recommended antibiotics for the simultaneous treatment of N. gonorrhoeae and C. trachomatis infections, while 132 GPs (40.4%) prescribed only non-recommended antibiotics, including ciprofloxacin in 69 cases (21.1%). General practitioners with less than 10 years in practice showed better compliance to guidelines than those with more years in practice (p<0.05). CONCLUSIONS: The results suggest a mismatch between the guidelines and the antibiotic treatment of male uncomplicated urethritis by French GPs, mostly among the subgroup of physicians who have been in practice longer. Educational approaches based on practice feedback need to be developed to improve these deficits in the quality of care.


Asunto(s)
Antibacterianos/uso terapéutico , Actitud del Personal de Salud , Prescripciones de Medicamentos/estadística & datos numéricos , Médicos de Atención Primaria/estadística & datos numéricos , Pautas de la Práctica en Medicina/estadística & datos numéricos , Uretritis/tratamiento farmacológico , Adulto , Farmacorresistencia Bacteriana Múltiple , Femenino , Francia , Gonorrea/tratamiento farmacológico , Encuestas de Atención de la Salud , Conocimientos, Actitudes y Práctica en Salud , Humanos , Masculino , Persona de Mediana Edad , Vigilancia de la Población , Uretritis/microbiología
10.
AIDS Care ; 23(9): 1117-27, 2011 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-21500026

RESUMEN

In France, the newly diagnosed infection rate was 372/100,000 for African immigrants versus 6/100,000 for the French-born population in 2008. In addition, people from sub-Saharan countries were at higher risk for late diagnosis than native-born French despite their more frequent use of HIV testing. The purpose of this study was to compare the mean time since the last HIV test according to migration origin. This study used data from the SIRS (a French acronym for health, inequalities, and social ruptures) cohort, which, in 2005, included 3023 households representative of the greater Paris area. HIV testing uptake and the time since the last test were studied in relation to socio-economic factors, psychosocial characteristics, and migration origin. Multivariate ANOVA analyses were performed using Stata 10. People from sub-Saharan Africa were more likely to have been tested in their lifetime (78.51%) than those of French (56.19%) or Maghreb (39.74%) origin (p<0.0000). The mean time, in years, since the last HIV test was shorter among sub-Saharan immigrants and Maghreb immigrants (2.15 and 2.53 years, respectively) than among native-born French (4.84 years) (F=12.67; p<0.0000). These differences remained significant even after adjusting for gender, age, number of steady relationships, time lived in France, and difficulty reading and/or writing French (F=5.73; p=0.0007). A gender analysis revealed the same pattern for both sexes, with greater differences in the mean duration by migration origin for women. These results and recent epidemiological data seem to show that since the early 2000s, measures aimed at increasing HIV testing and decreasing late diagnosis in sub-Saharan immigrants have been effective.


Asunto(s)
Infecciones por VIH/diagnóstico , Infecciones por VIH/etnología , Adolescente , Adulto , África del Sur del Sahara/etnología , África del Norte/etnología , Emigración e Inmigración/estadística & datos numéricos , Femenino , Francia , Humanos , Masculino , Persona de Mediana Edad , Paris/epidemiología , Factores Socioeconómicos , Adulto Joven
11.
PLoS One ; 3(7): e2783, 2008 Jul 30.
Artículo en Inglés | MEDLINE | ID: mdl-18665246

RESUMEN

BACKGROUND: While the relationship between average adherence to HIV potent antiretroviral therapy is well defined, the relationship between patterns of adherence within adherence strata has not been investigated. We examined medication event monitoring system (MEMS) defined adherence patterns and their relation to subsequent virologic rebound. METHODS AND RESULTS: We selected subjects with at least 3-months of previous virologic suppression on a non-nucleoside reverse transcriptase inhibitor (NNRTI)-based regimen from two prospective cohorts in France and North America. We assessed the risk of virologic rebound, defined as HIV RNA of >400 copies/mL according to several MEMS adherence measurements. Seventy two subjects were studied, five of them experienced virologic rebound. Subjects with and without virologic rebound had similar baseline characteristics including treatment durations, regimen (efavirenz vs nevirapine), and dosing schedule. Each 10% increase in average adherence decreased the risk of virologic rebound (OR = 0.56; 95% confidence interval (CI) [0.37, 0.81], P<0.002). Each additional consecutive day off therapy for the longest treatment interruption (OR = 1.34; 95%CI [1.15, 1.68], P<0.0001) and each additional treatment interruption for more than 2 days (OR = 1.38; 95%CI [1.13, 1.77], P<0.002) increased the risk of virologic rebound. In those with low-to-moderate adherence (i.e. <80%), treatment interruption duration (16.2 days versus 6.1 days in the control group, P<0.02), but not average adherence (53.1% vs 55.9%, respectively, P = 0.65) was significantly associated with virologic rebound. CONCLUSIONS: Sustained treatment interruption may pose a greater risk of virologic rebound on NNRTI therapy than the same number of interspersed missed doses at low-to-moderate adherence.


Asunto(s)
Fármacos Anti-VIH/uso terapéutico , Infecciones por VIH/tratamiento farmacológico , VIH/metabolismo , Adulto , Terapia Antirretroviral Altamente Activa , Estudios de Casos y Controles , Estudios de Cohortes , Femenino , Humanos , Masculino , Persona de Mediana Edad , Oportunidad Relativa , Cooperación del Paciente , ARN Viral/metabolismo , Inhibidores de la Transcriptasa Inversa/farmacología
12.
J Med Virol ; 80(5): 785-90, 2008 May.
Artículo en Inglés | MEDLINE | ID: mdl-18360891

RESUMEN

Anti-HAV IgM positive serum samples from acute phase hepatitis A patients from various areas in Turkey were tested for viral RNA by RT-PCR (reverse transcriptase polymerase chain reaction), using primer pairs from two different regions of the HAV genome. The PCR products amplified from both genomic regions underwent phylogenetic analyses. A comparison of the regions showed the same genotyping results, and the RT-PCR-2 in the 5'NCR demonstrated greater sensitivity compared to RT-PCR-1 in the VP1-P2A region. The majority of the isolates belonged to genotype IB and are related closely to each other; however, two isolates related even more strongly to the HAV HM175 strain. Two (n = 37) RT-PCR positive sera were classified under genotype IA. A surprising finding emerged for the mean levels of serum transaminases AST and ALT: higher levels were found in patients under 10 years of age compared to older patients. Anti-HAV IgM levels were determined quantitatively and, in addition, the HAV-RNA genome equivalents were ascertained by real time RT-PCR. No evidence was found for an association between viral load and the higher transaminase levels in the younger group.


Asunto(s)
Virus de la Hepatitis A/clasificación , Virus de la Hepatitis A/genética , Hepatitis A/virología , Regiones no Traducidas 5'/genética , Adolescente , Adulto , Factores de Edad , Alanina Transaminasa/sangre , Aspartato Aminotransferasas/sangre , Niño , Preescolar , Femenino , Genotipo , Hepatitis A/epidemiología , Anticuerpos de Hepatitis A/sangre , Virus de la Hepatitis A/aislamiento & purificación , Humanos , Inmunoglobulina M/sangre , Masculino , Persona de Mediana Edad , Datos de Secuencia Molecular , Filogenia , ARN Viral/sangre , ARN Viral/genética , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Análisis de Secuencia de ADN , Homología de Secuencia , Turquía/epidemiología , Proteínas Estructurales Virales/genética
13.
AIDS ; 21(16): 2217-22, 2007 Oct 18.
Artículo en Inglés | MEDLINE | ID: mdl-18090049

RESUMEN

OBJECTIVE: For optimal adherence, once-daily dosing is best. Whether this applies to antiretroviral therapy is unknown. We thus aimed to determine the effect of once-daily dosing on adherence to nevirapine. DESIGN: A three-phase (3-month observational, 4-month randomized, 5-month interventional) open-label, clinical trial at four French academic medical centres during 2005-2006 among 62 chronically HIV-1-infected subjects with long-lasting viral suppression under a twice-a-day nevirapine-based antiretroviral combination. METHODS: Adherence was measured using electronic monitoring devices and validated by sequential plasma drug levels. Participants were randomly assigned to switch to nevirapine 400 mg once-daily (n = 31) or continue nevirapine 200 mg twice-a-day (n = 31). After the randomized phase, participants had an opportunity to choose their antiretroviral dosage. Primary outcome was the mean percentage of adherence. RESULTS: Fifty-two patients qualified for electronic data analysis. During the randomized phase, the mean adherence rate was non-significantly superior by 0.5% in once-daily versus twice-a-day dosing (P = 0.68), adjusting for previous twice-a-day adherence rate (P < 0.0001). Once-daily group increased days without dose [odds ratio (OR) 1.7; 95% confidence interval (CI) 1.0, 2.8; P = 0.04], adjusting for previous drug interruptions (P < 0.0001). In the longitudinal analysis, once-daily dosing was significantly associated with at least two consecutive days without dose (OR 4.4; 95% CI 1.9, 10.3; P < 0.001). CONCLUSION: Changing from twice to once-daily nevirapine does not improve adherence. Supporting continuous adherence to antiretroviral therapy in the 'once-a-day era' remains a challenge, even if more potent regimens can achieve viral suppression at lower adherence levels.


Asunto(s)
Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/psicología , VIH-1 , Nevirapina/administración & dosificación , Cooperación del Paciente/psicología , Inhibidores de la Transcriptasa Inversa/administración & dosificación , Adulto , Anciano , Esquema de Medicación , Infecciones por VIH/sangre , Humanos , Modelos Lineales , Modelos Logísticos , Persona de Mediana Edad , Monitoreo Fisiológico/métodos , Nevirapina/sangre , Nevirapina/uso terapéutico , Satisfacción del Paciente , Inhibidores de la Transcriptasa Inversa/sangre , Inhibidores de la Transcriptasa Inversa/uso terapéutico , Carga Viral
14.
Clin Infect Dis ; 45(2): 263-6, 2007 Jul 15.
Artículo en Inglés | MEDLINE | ID: mdl-17578790

RESUMEN

Many antiretroviral therapies, including efavirenz, are associated with increased serum concentrations of low-density lipoprotein cholesterol. In a small 52-week randomized study, we found that switching from efavirenz to nevirapine was associated with significantly decreased low-density lipoprotein cholesterol levels, compared with continuation of efavirenz therapy (P<.04). A switch to nevirapine was associated with no severe adverse events.


Asunto(s)
LDL-Colesterol/sangre , Dislipidemias/prevención & control , Infecciones por VIH/tratamiento farmacológico , Nevirapina/administración & dosificación , Inhibidores de la Transcriptasa Inversa/administración & dosificación , Alquinos , Benzoxazinas/administración & dosificación , Benzoxazinas/efectos adversos , LDL-Colesterol/efectos de los fármacos , Enfermedad Coronaria/inducido químicamente , Enfermedad Coronaria/prevención & control , Estudios Cruzados , Ciclopropanos , Relación Dosis-Respuesta a Droga , Esquema de Medicación , Dislipidemias/sangre , Dislipidemias/inducido químicamente , Femenino , Estudios de Seguimiento , Infecciones por VIH/diagnóstico , Humanos , Masculino , Nevirapina/efectos adversos , Inhibidores de la Transcriptasa Inversa/efectos adversos , Índice de Severidad de la Enfermedad , Método Simple Ciego , Resultado del Tratamiento
15.
Cad Saude Publica ; 23(3): 545-52, 2007 Mar.
Artículo en Portugués | MEDLINE | ID: mdl-17334569

RESUMEN

The tuberculosis incidence rate in prisons in Rio de Janeiro State, Brazil, was 30 times higher in 2004 than in the general population and is probably underestimated, particularly given the difficult access to care in the prison setting. To obtain a better estimate, a survey used systematic X-ray screening and showed a prevalence rate of 4.6% in one such detention facility, A (n = 1,052). Two additional surveys, in facilities B (n = 590) and C (n = 1,372), showed even higher prevalence rates (6.3% and 8.6% respectively). A comparison of socio-demographic characteristics between A, B, and C showed a heterogeneous prison population. As compared to facility A, inmates in B and C come from poorer urban communities and have more frequent histories of incarceration and tuberculosis. These differences, consistent with the prevalence data, imply the necessary adaptation of tuberculosis control programs to each detention facility's epidemiological and socio-demographic profile.


Asunto(s)
Prisiones/estadística & datos numéricos , Tuberculosis Pulmonar/epidemiología , Adolescente , Adulto , Anciano , Análisis de Varianza , Brasil/epidemiología , Distribución de Chi-Cuadrado , Estudios Transversales , Infecciones por VIH/sangre , Humanos , Persona de Mediana Edad , Prevalencia , Salud Pública , Radiografía , Factores Socioeconómicos , Tuberculosis Pulmonar/diagnóstico por imagen , Tuberculosis Pulmonar/prevención & control
16.
Cad. saúde pública ; 23(3): 545-552, mar. 2007.
Artículo en Portugués | LILACS | ID: lil-441983

RESUMEN

Em 2004, a taxa de incidência da tuberculose nas prisões do Estado do Rio de Janeiro, Brasil, foi trinta vezes superior à da população geral do Estado. Essa taxa provavelmente é subestimada, especialmente pela dificuldade de acesso ao serviço de saúde nesse ambiente. Com o objetivo de melhor avaliar a situação, um primeiro inquérito radiológico sistemático foi realizado e mostrou taxa de prevalência de 4,6 por cento (prisão A, n = 1.052). Dois inquéritos adicionais revelaram, nas unidades B (n = 590) e C (n = 1.372), taxas maiores (6,3 por cento e 8,6 por cento, respectivamente). A comparação das características sócio-demográficas das prisões A, B e C mostrou que a população encarcerada não é homogênea. Em comparação com prisão A, os indivíduos encarcerados nas prisões B e C são oriundos de comunidades mais desfavorecidas e têm mais freqüentemente história de encarceramento anterior e de tuberculose. Essas diferenças, coerentes com os dados de prevalência, implicam a adaptação das medidas de controle da tuberculose ao perfil epidemiológico e sócio-demográfico de cada unidade prisional.


The tuberculosis incidence rate in prisons in Rio de Janeiro State, Brazil, was 30 times higher in 2004 than in the general population and is probably underestimated, particularly given the difficult access to care in the prison setting. To obtain a better estimate, a survey used systematic X-ray screening and showed a prevalence rate of 4.6 percent in one such detention facility, A (n = 1,052). Two additional surveys, in facilities B (n = 590) and C (n = 1,372), showed even higher prevalence rates (6.3 percent and 8.6 percent respectively). A comparison of socio-demographic characteristics between A, B, and C showed a heterogeneous prison population. As compared to facility A, inmates in B and C come from poorer urban communities and have more frequent histories of incarceration and tuberculosis. These differences, consistent with the prevalence data, imply the necessary adaptation of tuberculosis control programs to each detention facility's epidemiological and socio-demographic profile.


Asunto(s)
Humanos , Seroprevalencia de VIH , Prisiones , Tuberculosis/epidemiología , Tuberculosis/prevención & control , Brasil , Incidencia , Prevalencia
17.
BMC Med Res Methodol ; 6: 46, 2006 Sep 20.
Artículo en Inglés | MEDLINE | ID: mdl-16987409

RESUMEN

BACKGROUND: The interpretation of the results of active-control trials regarding the efficacy and safety of a new drug is important for drug registration and following clinical use. It has been suggested that non-inferiority and equivalence studies are not reported with the same quantitative rigor as superiority studies. METHODS: Standard methodological criteria for non-inferiority and equivalence trials including design, analysis and interpretation issues were applied to 18 recently conducted large non-inferiority (15) and equivalence (3) randomized trials in the field of AIDS antiretroviral therapy. We used the continuity-corrected non-inferiority chi-square to test 95% confidence interval treatment difference against the predefined non-inferiority margin. RESULTS: The pre-specified non-inferiority margin ranged from 10% to 15%. Only 4 studies provided justification for their choice. 39% of the studies (7/18) reported only intent-to-treat (ITT) analysis for the primary endpoint. When on-treatment (OT) and ITT statistical analyses were provided, ITT was favoured over OT for results interpretation for all but one study, inappropriately in this statistical context. All but two of the studies concluded there was "similar" efficacy of the experimental group. However, 9/18 had inconclusive results for non-inferiority. CONCLUSION: Conclusions about non-inferiority should be drawn on the basis of the confidence interval analysis of an appropriate primary endpoint, using the predefined criteria for non-inferiority, in both OT and ITT, in compliance with the non-inferiority and equivalence CONSORT statement. We suggest that the use of the non-inferiority chi-square test may provide additional useful information.


Asunto(s)
Síndrome de Inmunodeficiencia Adquirida/tratamiento farmacológico , Antirretrovirales/farmacología , Evaluación de Medicamentos/normas , Adhesión a Directriz , Ensayos Clínicos Controlados Aleatorios como Asunto/normas , Resultado del Tratamiento , Antirretrovirales/normas , Distribución de Chi-Cuadrado , Intervalos de Confianza , Evaluación de Medicamentos/métodos , Determinación de Punto Final/normas , Humanos , Revisión de la Investigación por Pares , Proyectos de Investigación , Estadísticas no Paramétricas , Equivalencia Terapéutica
18.
Eur J Epidemiol ; 21(5): 397-405, 2006.
Artículo en Inglés | MEDLINE | ID: mdl-16715351

RESUMEN

Between 1996 and 2002, the French Sentinelles Network observed a more than 2-fold decline in the annual rate of hepatitis C virus (HCV) screening tests prescribed by general practitioners. During this period it droped from 1080 to 450 per 100,000 inhabitants. The proportion of HCV-positives increased from 9.7% to 12.9% between 1996 and 1998 but declined steadily afterwards, reaching 7% in 2002. The majority of HCV-positive patients were men (57%), 38% were aged 30-39 years and 45% were injecting drug users. Two French guidelines for HCV screening were issued in 1997 and 2001. Of the 3462 patients with a known HCV test result, 27.4% were offered following the 1997 guidelines, among which 23.7% were HCV-positive. Of the same 3462 patients, 36.8% were offered following the extended definition of the risk group in the 2001 guidelines, among which 19.9% were positive. The percentage of subjects tested with no biological sign or clinical symptom and no HCV risk factor varies from 11% to 26% showing that SGPs carry out a targeted screening even if they deviate from the strict recommendations. Of the HCV-positive patients, 14% did not meet any criteria of the guidelines suggesting a lack of sensitivity in the current definition of patients recommended for testing.


Asunto(s)
Hepatitis C/diagnóstico , Tamizaje Masivo/estadística & datos numéricos , Médicos de Familia , Guías de Práctica Clínica como Asunto , Pautas de la Práctica en Medicina/estadística & datos numéricos , Adolescente , Adulto , Distribución por Edad , Anciano , Femenino , Francia/epidemiología , Humanos , Masculino , Persona de Mediana Edad , Factores de Tiempo
19.
Br J Gen Pract ; 56(523): 110-4, 2006 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-16464324

RESUMEN

BACKGROUND: At-risk sexual behaviour seems to have increased in Europe, possibly due to the reassuring efficacy of highly active antiretroviral treatments. AIM: To follow, from 1990 to 2003, in France, the trends in the incidence of acute male urethritis diagnosed in general practice, a marker of at-risk sexual behaviour. DESIGN OF STUDY: Electronic disease surveillance. SETTING: General practices located all over mainland France. METHOD: The GPs of the French Sentinelles network reported, via online computer systems, the acute urethritis cases they diagnosed, and for each case the characteristics of the patients. RESULTS: After a striking decrease between 1990 and 1995 from 460 per 100 000 men aged 15-64 years (95% confidence interval [CI] = 390 to 520) to 180 (95% CI = 150 to 200), when antiretroviral drugs became available on the French market, the incidence of acute male urethritis stopped decreasing. Between 1996 and 2003, it may have risen again from 190 per 100 000 men (95% CI = 160 to 210) to 325 per 100 000 men (95% CI = 280 to 370) aged 15-64 years. The percentage of homosexual/bisexual men among the cases reported was higher than in the general population (10% versus 4%, P<0.001). Homosexual/bisexual patients were younger than heterosexual patients (34 versus 37 years, P = 0.04), more of them had a discharge (88% versus 59%, P<0.001), a history of sexually transmitted disease (65% versus 32%, P<0.001), and at least two sexual partners (74% versus 38%, P<0.001). The most frequent pathogens were Chlamydia trachomatis (25%), Neisseria gonorrhoea (21%), Mycoplasma genitalium (8%), Ureaplasma urealyticum (5%), Trichomonas vaginalis (3%) and other bacteria (32%). Presence of co-infections was observed in 8.3% of patients. CONCLUSIONS: This increase in the incidence of urethritis, shows that the sexual health of men has worsened in France, and calls for urgent new preventive measures.


Asunto(s)
Enfermedades de Transmisión Sexual/epidemiología , Uretritis/epidemiología , Enfermedad Aguda , Adolescente , Adulto , Distribución por Edad , Francia/epidemiología , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Vigilancia de Guardia , Sexualidad
20.
AIDS ; 20(3): 419-27, 2006 Feb 14.
Artículo en Inglés | MEDLINE | ID: mdl-16439876

RESUMEN

BACKGROUND: Little is know about the determinants of liver fibrosis progression and genomic variability in hepatitis B virus (HBV) in HIV/HBV-coinfected patients. METHODS: A cross-sectional analysis examined common characteristics of HBV infection in an ongoing cohort study of 308 patients with both HIV-1-positive Western blot and plasma HBV surface antigen (HBsAg) seropositivity. Risk factors for liver fibrosis were studied in a subset of 104 patients for whom liver biopsy and complete HBV genomic analysis were available. Analysis was performed by exact multiple regression analysis. RESULTS: Mean age of the study population was 40.3 years, with a ratio male to female of 5.3 and a mean duration of HIV infection of 9.3 years. In the subset of 104 patients, plasma HBV e antigen (HBeAg) in HBV-replicative patients could not be detected in 28.4% and lamivudine-resistant mutants were detected in 67.8%. HBV genotype A was the most frequent genotype (73/104) and 25 patients were infected by the usually rare genotype G. METAVIR fibrosis score was rated F2-F4 in 70 patients. After adjustment for the most common known determinants of liver fibrosis, HBV genotype G [odds ratio (OR), 12.60; 95% confidence interval (CI), 1.72-infinite; P < 0.009], efavirenz exposure (OR, 3.55; 95% CI, 1.14-12.14; P < 0.03), and the duration of HIV infection (3.86; 95% CI, 1.27-12.64; P < 0.01) were strongly associated with the risk of grade F2-F4 fibrosis. CONCLUSION: HBV genotype G is a determinant of liver fibrosis in HIV/HBV-coinfected patients and HBV genotyping should be considered as part of the management of patients with multiple risk factors for rapid progression of liver fibrosis.


Asunto(s)
Infecciones por VIH/complicaciones , VIH-1 , Hepatitis B Crónica/genética , Cirrosis Hepática/genética , Adulto , Estudios de Cohortes , Estudios Transversales , Femenino , Genoma Viral , Genotipo , Hepatitis B Crónica/complicaciones , Humanos , Cirrosis Hepática/virología , Masculino
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...