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1.
Eur Heart J ; 45(2): 104-113, 2024 Jan 07.
Artigo em Inglês | MEDLINE | ID: mdl-37647629

RESUMO

BACKGROUND AND AIMS: Female sex is associated with higher rates of stroke in atrial fibrillation (AF) after adjustment for other CHA2DS2-VASc factors. This study aimed to describe sex differences in age and cardiovascular care to examine their relationship with stroke hazard in AF. METHODS: Population-based cohort study using administrative datasets of people aged ≥66 years diagnosed with AF in Ontario between 2007 and 2019. Cause-specific hazard regression was used to estimate the adjusted hazard ratio (HR) for stroke associated with female sex over a 2-year follow-up. Model 1 included CHA2DS2-VASc factors, with age modelled as 66-74 vs. ≥ 75 years. Model 2 treated age as a continuous variable and included an age-sex interaction term. Model 3 further accounted for multimorbidity and markers of cardiovascular care. RESULTS: The cohort consisted of 354 254 individuals with AF (median age 78 years, 49.2% female). Females were more likely to be diagnosed in emergency departments and less likely to receive cardiologist assessments, statins, or LDL-C testing, with higher LDL-C levels among females than males. In Model 1, the adjusted HR for stroke associated with female sex was 1.27 (95% confidence interval 1.21-1.32). Model 2 revealed a significant age-sex interaction, such that female sex was only associated with increased stroke hazard at age >70 years. Adjusting for markers of cardiovascular care and multimorbidity further decreased the HR, so that female sex was not associated with increased stroke hazard at age ≤80 years. CONCLUSION: Older age and inequities in cardiovascular care may partly explain higher stroke rates in females with AF.


Assuntos
Fibrilação Atrial , Acidente Vascular Cerebral , Feminino , Humanos , Masculino , Idoso , Idoso de 80 Anos ou mais , Fibrilação Atrial/complicações , Fibrilação Atrial/epidemiologia , Fibrilação Atrial/diagnóstico , Estudos de Coortes , LDL-Colesterol , Acidente Vascular Cerebral/etiologia , Acidente Vascular Cerebral/complicações , Modelos de Riscos Proporcionais , Fatores de Risco , Medição de Risco
2.
Eur Heart J ; 45(20): 1819-1827, 2024 May 27.
Artigo em Inglês | MEDLINE | ID: mdl-38606837

RESUMO

BACKGROUND AND AIMS: Female sex has been linked with higher risk of ischaemic stroke (IS) in atrial fibrillation (AF), but no prior study has examined temporal trends in the IS risk associated with female sex. METHODS: The registry-linkage Finnish AntiCoagulation in Atrial Fibrillation (FinACAF) study included all patients with AF in Finland from 2007 to 2018. Ischaemic stroke rates and rate ratios were computed. RESULTS: Overall, 229 565 patients with new-onset AF were identified (50.0% women; mean age 72.7 years). The crude IS incidence was higher in women than in men across the entire study period (21.1 vs. 14.9 events per 1000 patient-years, P < .001), and the incidence decreased both in men and women. In 2007-08, female sex was independently associated with a 20%-30% higher IS rate in the adjusted analyses, but this association attenuated and became statistically non-significant by the end of the observation period. Similar trends were observed when time with and without oral anticoagulant (OAC) treatment was analysed, as well as when only time without OAC use was considered. The decrease in IS rate was driven by patients with high IS risk, whereas in patients with low or moderate IS risk, female sex was not associated with a higher IS rate. CONCLUSIONS: The association between female sex and IS rate has decreased and become non-significant over the course of the study period from 2007 to 2018, suggesting that female sex could be omitted as a factor when estimating expected IS rates and the need for OAC therapy in patients with AF.


Assuntos
Anticoagulantes , Fibrilação Atrial , AVC Isquêmico , Sistema de Registros , Humanos , Fibrilação Atrial/complicações , Fibrilação Atrial/epidemiologia , Fibrilação Atrial/tratamento farmacológico , Feminino , Idoso , AVC Isquêmico/epidemiologia , AVC Isquêmico/prevenção & controle , AVC Isquêmico/etiologia , Finlândia/epidemiologia , Masculino , Anticoagulantes/uso terapêutico , Incidência , Fatores Sexuais , Fatores de Risco , Idoso de 80 Anos ou mais , Pessoa de Meia-Idade
3.
Eur Heart J ; 45(26): 2306-2316, 2024 Jul 09.
Artigo em Inglês | MEDLINE | ID: mdl-38751052

RESUMO

BACKGROUND AND AIMS: Presentation, outcome, and management of females with degenerative mitral regurgitation (DMR) are undefined. We analysed sex-specific baseline clinical and echocardiographic characteristics at referral for DMR due to flail leaflets and subsequent management and outcomes. METHODS: In the Mitral Regurgitation International Database (MIDA) international registry, females were compared with males regarding presentation at referral, management, and outcome (survival/heart failure), under medical treatment, post-operatively, and encompassing all follow-up. RESULTS: At referral, females (n = 650) vs. males (n = 1660) were older with more severe symptoms and higher MIDA score. Smaller cavity diameters belied higher cardiac dimension indexed to body surface area. Under conservative management, excess mortality vs. expected was observed in males [standardized mortality ratio (SMR) 1.45 (1.27-1.65), P < .001] but was higher in females [SMR 2.00 (1.67-2.38), P < .001]. Female sex was independently associated with mortality [adjusted hazard ratio (HR) 1.29 (1.04-1.61), P = .02], cardiovascular mortality [adjusted HR 1.58 (1.14-2.18), P = .007], and heart failure [adjusted HR 1.36 (1.02-1.81), P = .04] under medical management. Females vs. males were less offered surgical correction (72% vs. 80%, P < .001); however, surgical outcome, adjusted for more severe presentation in females, was similar (P ≥ .09). Ultimately, overall outcome throughout follow-up was worse in females who displayed persistent excess mortality vs. expected [SMR 1.31 (1.16-1.47), P < .001], whereas males enjoyed normal life expectancy restoration [SMR 0.92 (0.85-0.99), P = .036]. CONCLUSIONS: Females with severe DMR were referred to tertiary centers at a more advanced stage, incurred higher mortality and morbidity under conservative management, and were offered surgery less and later after referral. Ultimately, these sex-related differences yielded persistent excess mortality despite surgery in females with DMR, while males enjoyed restoration of life expectancy, warranting imperative re-evaluation of sex-specific DMR management.


Assuntos
Insuficiência da Valva Mitral , Humanos , Feminino , Masculino , Insuficiência da Valva Mitral/mortalidade , Insuficiência da Valva Mitral/cirurgia , Idoso , Fatores Sexuais , Pessoa de Meia-Idade , Ecocardiografia , Sistema de Registros , Resultado do Tratamento , Tratamento Conservador , Insuficiência Cardíaca/mortalidade , Insuficiência Cardíaca/terapia , Insuficiência Cardíaca/etiologia , Valva Mitral/cirurgia , Valva Mitral/diagnóstico por imagem
4.
Artigo em Inglês | MEDLINE | ID: mdl-39344600

RESUMO

BACKGROUND: Transradial access (TRA) is now the default access site for PPCI, but technically is a more challenging approach mostly due to anatomic challenges connected to the RA. AIMS: To assess the differences according to sex in radial artery (RA) access site characteristics during primary percutaneous coronary intervention (PPCI) for ST segment elevation myocardial infarction (STEMI). MATERIAL AND METHODS: All 5092 consecutive STEMI patients from our center in the period from March 2011 until December 2017 were examined. The right proximal radial was the "intention-to-treat" access in all patients. Preprocedural RA angiography was performed in all patients. Clinical and procedure characteristics, type of radial anatomy variants, need to use another arterial access sites (the primary endpoint for this study), and procedure time were analyzed by sex. Using logistic regression, we selected predictors of radial crossover. Access site bleeding complications and vascular complications were also recorded. RESULTS: The STEMI population in this period included 1326 females and 3766 male patients. Females were older (65 ± 11 years) than males (59 ± 11 years, p < 0.0001). Among standard risk factors, hypertension and diabetes mellitus were more common in women and smoking less common. RA anomalies were more frequent in the females (8.8% vs. 6.5%, p < 0.0001), with complex RA loop and tortuous RA twice as frequent in women. Failure of TRA access as the initially chosen site occurred in 4.6% (61) of females versus 2.5% (97) of male STEMI patients (p = 0.0003). The most common subsequent access site was right ulnar access in both groups (57 and 61% respectively). Access site bleeding complications were more common in women 4.4% versus 3.2%, mirrored in hematomas with EASY score III to V. Clinical RA spasm (RAS) was significantly more frequent in females (5.7% vs. 2.2%, p < 0.0001). Multiple regression analysis identified 5 independent predictors for TRA access crossover: previous TRA, anomalous RA, RAS, along with female sex and diabetes. CONCLUSION: Female sex is a significant predictor of more complex TRA in STEMI. Understanding sex differences and predictors for TRA crossover will strengthen the use of different procedural modalities that can help in preserving a successful wrist access in female STEMI patients.

5.
AIDS Behav ; 2024 Oct 02.
Artigo em Inglês | MEDLINE | ID: mdl-39356376

RESUMO

Clients of Female Sex Workers (FSWs) are major bridge population in HIV transmission. Any research among them remains challenging because they are hidden within society. The objective of this review was tocompile the global evidence on different sampling strategies used to access male clients of female sex workers for research purpose, the challenges faced during the sampling process andpossible sources of bias. Original articles and reports published globally in last 10 years, in English language and those with full text freely available online were included in this scoping review. A comprehensive search was carried out among the electronic peer-reviewed literature database (Pubmed and Web of Science) using a pre-designed peer reviewed search strategy. Narrative synthesis was applied out across all such articles. A total of 36 articles were finally included in this review. The common sampling techniques used include convenience sampling, referral by FSWs/ pimp/brothel manager/clients, time location cluster sampling, use of virtual network, anonymous telephone survey, referred by clinicians of STI clinic etc. Overall response rate varied between 35 and 90%. Major challenges in participant recruitment included non-response, feasibility issue specially to cater non-brothel-based clients, safety issue for investigators, over-representation of clients with lower socio-economic status, higher refusal rate for known HIV positive clients to provide biological sample etc. As different sampling techniques have comparable response rate, it can be recommended that a pilot study should be carried out in local context to finalise appropriate participant recruitment technique for a given population.

6.
AIDS Behav ; 28(4): 1257-1269, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37566152

RESUMO

Female sex workers (FSWs) are considered a high-risk group for sexually transmitted infections (STIs). However, limited data exist on the prevalence and trends of HIV, syphilis and HCV among FSWs in the Sino-Vietnam border area. To determine the prevalence, trends and correlates of STIs among Chinese local FSWs (CL-FSWs) and cross-border migrant FSWs (CM-FSWs), we conducted consecutive cross-sectional surveys from 2016 to 2021, recruiting 7747 CL-FSWs and 932 CM-FSWs. The overall HIV, syphilis and HCV prevalence declined from 1.0%, 8.8% and 1.7% to 0.1%, 0.9% and 0.3%, respectively. There was no significant downward trend in the overall HIV and syphilis prevalence. However, HCV prevalence showed a decreasing trend among CL-FSWs. CM-FSWs had higher HIV prevalence (2.5% vs. 0.6%). Similarities and differences in STIs-related factors existed between CM-FSWs and CL-FSWs. For instance, receiving HIV-related services in the last year reduced the risk of HIV infection (for CM-FSWs: aOR = 0.234, 95% CI: 0.055-0.993; for CL-FSWs: aOR = 0.182, 95% CI: 0.058-0.567). Serving male clients at least 50 years old increased the risk of syphilis infection (for CM-FSWs: aOR = 4.277, 95% CI: 1.535-11.917; for CL-FSWs: aOR = 1.404, 95% CI: 1.087-1.815). Moreover, CM-FSWs with past-year STIs history had a higher risk of HIV (aOR = 34.976, 95% CI: 5.338-229.176) and HCV infection (aOR = 17.649, 95% CI: 1.846-168.846), both of which were associated with multiple factors in CL-FSWs. It is therefore necessary to develop effective, accessible, high-quality and targeted interventions for CM-FSWs and CL-FSWs.


Assuntos
Infecções por HIV , Hepatite C , Profissionais do Sexo , Infecções Sexualmente Transmissíveis , Sífilis , Migrantes , Masculino , Feminino , Humanos , Pessoa de Meia-Idade , Infecções por HIV/epidemiologia , Sífilis/epidemiologia , Prevalência , Estudos Transversais , Fatores de Risco , China/epidemiologia , Infecções Sexualmente Transmissíveis/epidemiologia , Hepatite C/epidemiologia
7.
AIDS Behav ; 28(1): 1-11, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37632605

RESUMO

This qualitative study reports on female sex workers' (FSWs) perceptions of the quality of antiretroviral therapy (ART) services they received as part of a community-based ART distribution intervention compared to services received by FSWs in the standard of care (SOC) arm. In-depth interviews were conducted with 24 participants to explore their perceptions of the quality of ART services. Data was analyzed using a quality-of-care framework that included but was not limited to, domains of accessibility, effective organization of care, package of services, and patient-centered care. Overall, FSWs in the intervention arm reported community-based ART services to be highly accessible, organized, and effective, and they highly valued the patient-centered care and high level of privacy. Community-based ART programs for FSWs can have high quality-of-care, which can have a positive effect on HIV treatment outcomes for FSWs.


Assuntos
Infecções por HIV , Profissionais do Sexo , Feminino , Humanos , Infecções por HIV/tratamento farmacológico , Tanzânia/epidemiologia , Ciência da Implementação , Serviços de Saúde Comunitária , Resultado do Tratamento
8.
AIDS Behav ; 28(11): 3836-3849, 2024 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-39136824

RESUMO

Pre-exposure prophylaxis (PrEP) is highly effective at reducing HIV acquisition. We aimed to estimate usage of oral-PrEP, and factors associated with adherence among female sex workers (FSWs) in Nairobi, Kenya, using a novel point-of-care urine tenofovir lateral flow assay (LFA). The Maisha Fiti study randomly selected FSWs from Sex Worker Outreach Program clinics in Nairobi. Data were collected from 1003 FSWs from June-October 2019, including surveys on self-reported oral-PrEP adherence. Adherence was also measured using the LFA for HIV-negative FSWs currently taking oral-PrEP. Informed by a social-ecological theoretical framework, we used hierarchical multivariable logistic regression models to estimate associations between individual, interpersonal/community, and structural/institutional-level factors and either self-reported or LFA-assessed adherence. Overall, 746 HIV-negative FSWs aged 18-40 participated in the study, of whom 180 (24.1%) self-reported currently taking oral-PrEP. Of these, 56 (31.1%) were adherent to oral-PrEP as measured by LFA. In the multivariable analyses, associations with currently taking oral-PrEP included having completed secondary education, high alcohol/substance use, feeling empowered to use PrEP, current intimate partner, no recent intimate partner violence, having support from sex worker organisations, experiencing sex work-related stigma, and seeking healthcare services despite stigma. Associations with oral-PrEP LFA-measured adherence measured included having only primary education, experience of childhood emotional violence, belonging to a higher wealth tertile, and being nulliparous. Oral-PrEP adherence, measured by self-report or objectively, is low among FSWs in Nairobi. Programs to improve oral-PrEP usage among FSWs should work to mitigate social and structural barriers and involve collaboration between FSWs, healthcare providers and policymakers.


Assuntos
Fármacos Anti-HIV , Infecções por HIV , Adesão à Medicação , Profilaxia Pré-Exposição , Autorrelato , Profissionais do Sexo , Tenofovir , Humanos , Feminino , Profissionais do Sexo/estatística & dados numéricos , Profissionais do Sexo/psicologia , Quênia/epidemiologia , Profilaxia Pré-Exposição/estatística & dados numéricos , Adulto , Infecções por HIV/prevenção & controle , Infecções por HIV/urina , Tenofovir/urina , Tenofovir/uso terapêutico , Fármacos Anti-HIV/uso terapêutico , Adesão à Medicação/estatística & dados numéricos , Adulto Jovem , Adolescente , Sistemas Automatizados de Assistência Junto ao Leito , Administração Oral , Testes Imediatos , Estudos Transversais , Estigma Social
9.
AIDS Care ; 36(4): 517-527, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37921364

RESUMO

This randomized pilot project evaluated an intervention promoting health care literacy around HIV, pre-exposure prophylaxis (PrEP), and stigma reduction using private social media groups that complemented existing HIV prevention services among female sex workers (FSWs) in Cameroon. The intervention was 12 HIV and sexual health videos tailored to FSWs that were released over 8 weeks through a secret Facebook group platform. In-person surveys were administered before, after the intervention, and three months later. No HIV seroconversions were detected; all participants completed follow-up and agreed to recommend the intervention to a coworker. Although the intervention was assessed to be acceptable and feasible to implement, poor internet connectivity was a key barrier. In time-series analysis, the intervention group participants reported improved PrEP interest, PrEP knowledge, and condom use along with reduced PrEP and HIV-related stigma, but no impact on sex-work related stigma or social cohesion. Similar results occurred in the control group. Cross-contamination and small pilot study size might have hindered the ability to detect the differential impact of this intervention. As communications technology increases in Cameroon, it is essential to learn more about FSWs preferences on the use of social media platforms for HIV prevention strategies.


Assuntos
Infecções por HIV , Profilaxia Pré-Exposição , Profissionais do Sexo , Mídias Sociais , Humanos , Feminino , Infecções por HIV/tratamento farmacológico , Projetos Piloto , Camarões , Estudos de Viabilidade , Profilaxia Pré-Exposição/métodos
10.
BMC Infect Dis ; 22(Suppl 1): 978, 2024 Mar 11.
Artigo em Inglês | MEDLINE | ID: mdl-38468208

RESUMO

BACKGROUND: In Malawi, female sex workers (FSW) have high HIV incidence and regular testing is suggested. HIV self-testing (HIVST) is a safe and acceptable alternative to standard testing services. This study assessed; whether social harms were more likely to be reported after HIVST distribution to FSW by peer distributors than after facility-based HIV testing and whether FSW regretted HIVST use or experienced associated relationship problems. METHODS: Peer HIVST distributors, who were FSW, were recruited in Blantyre district, Malawi between February and July 2017. Among HIVST recipients a prospective cohort was recruited. Interviews were conducted at baseline and at end-line, 3 months later. Participants completed daily sexual activity diaries. End-line data were analysed using logistic regression to assess whether regret or relationship problems were associated with HIVST use. Sexual activity data were analysed using Generalised Estimating Equations to assess whether HIVST use was temporally associated with an increase in social harms. RESULTS: Of 265 FSW recruited and offered HIVST, 131 completed both interviews. Of these, 31/131(23.7%) reported initial regret after HIVST use, this reduced to 23/131(17.6%) at the 3-month follow-up. Relationship problems were reported by 12/131(9.2%). Regret about HIVST use was less commonly reported in those aged 26-35 years compared to those aged 16-25 years (OR immediate regret-0.40 95% CI 0.16-1.01) (OR current regret-0.22 95% CI 0.07 - 0.71) and was not associated with the HIVST result. There was limited evidence that reports of verbal abuse perpetrated by clients in the week following HIVST use were greater than when there was no testing in the preceding week. There was no evidence for increases in any other social harms. There was some evidence of coercion to test, most commonly initiated by the peer distributor. CONCLUSIONS: Little evidence was found that the peer distribution model was associated with increased levels of social harms, however programmes aimed at reaching FSW need to carefully consider possible unintended consequences of their service delivery approaches, including the potential for peer distributors to coerce individuals to test or disclose their test results and alternative distribution models may need to be considered.


Assuntos
Infecções por HIV , Profissionais do Sexo , Humanos , Feminino , Estudos de Coortes , Estudos Prospectivos , Autoteste , Malaui/epidemiologia , Programas de Rastreamento/métodos , Infecções por HIV/diagnóstico , Infecções por HIV/epidemiologia , Teste de HIV
11.
Health Econ ; 33(1): 153-193, 2024 01.
Artigo em Inglês | MEDLINE | ID: mdl-37916862

RESUMO

We use a cohort of female sex workers (FSWs) in Senegal to show how large anticipated economic shocks lead to increased risky sexual behavior. Exploiting the exogenous timing of interviews, we study the effect of Tabaski, the most important Islamic festival celebrated in Senegal, in which most households purchase an expensive animal for sacrifice. Condom use, measured robustly via the list experiment, falls by between 27.3 percentage points (pp) (65.5%) and 43.1 pp (22.7%) in the 9 days before Tabaski, or a maximum of 49.5 pp (76%) in the 7 day period preceding Tabaski. The evidence suggests the economic pressures from Tabaski are key to driving the behavior change observed through the price premium for condomless sex. Those most exposed to the economic pressure from Tabaski were unlikely to be using condoms at all in the week before the festival. Our findings show that Tabaski leads to increased risky behaviors for FSWs, a key population at high risk of HIV infection, for at least 1 week every year and has implications for FSWs in all countries celebrating Tabaski or similar festivals. Because of the scale, frequency, and size of the behavioral response to shocks of this type, policy should be carefully designed to protect vulnerable women against anticipated shocks.


Assuntos
Infecções por HIV , Profissionais do Sexo , Feminino , Humanos , Animais , Ovinos , Infecções por HIV/epidemiologia , Infecções por HIV/prevenção & controle , Senegal/epidemiologia , Comportamento Sexual , Sexo Seguro
12.
Arch Sex Behav ; 53(7): 2833-2850, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38902491

RESUMO

We used an Intervention Mapping Approach (IMA) to derive multi-level HIV prevention strategies aiming to develop an HIV prevention intervention program among female sex workers (FSWs). We also aimed at pilot testing the effects of the IMA-based "HIV Prevention and Awareness Program (HIV-PAP)" on safe sex behaviors and its determinants among FSWs in Tabriz, Iran. To develop HIV-PAP, we conducted the six-step process of IMA. At Step 1, in a cross-sectional study, 140 FSWs were face-to-face interviewed. At Step 2, the program matrix was provided based on the importance and variability for identifying priority factors. At Steps 3 and 4, the methods and strategies for behavioral change were selected, and the HIV-PAP program components and materials were developed. At Steps 5 and 6, evaluation (as a pilot testing with Static-Group Comparison design) was conducted applying a pre-experimental study, in which 30 FSWs were assigned to intervention (n = 15) and control (n = 15) groups. The intervention group participated in a two-month long program, and one month later, the initial questionnaires were completed by both groups. The respondents (M age: 33.4 years, SD: 9.7) acquired low score (less than 50%) in negotiating for condom use (49.8%) only, and moderate scores (50-65%) in perceived social support (61.6%) and knowledge (60.5%). Adjusted for other variables, the factors (R2 = 32.0%) associated with safe sex behaviors among FSWs were predisposing factors [self-efficacy (ß = 0.331), perceived norms (ß = 0.945), and perceived barriers (ß = 0.258)], condom use negotiation (ß = 1.386), and environmental factors (ß = 0.333). Our IM-based framework had an adequate fit index (χ2 = 130.8, CFI = 0.78). Looking for inter-group comparison after intervention, we found significant mean difference (MD) for knowledge (MD: 2.18; 95% Confidence Interval (CI) - .38 to 4.74, p < 0.05), self-efficacy to use condom (MD: 6.71; 95% CI - 1.85 to 9.29, p < 0.05), perceived risk (MD: 2.03; 95% CI 0.58, to 3.49, p < 0.05), perceived social support (MD: 4.64; 95% CI - 5.37 to 11.31, p < 0.01), and safe sexual behaviors (MD: 7.75; 95% CI - 4.19 to 9.71, p < 0.05). The HIV-PAP showed effectiveness in promoting safe sexual behaviors and their determinants among FSWs. Healthcare providers should better understand the determinants of safe sexual behaviors among FSWs in the settings with legal prohibitions for sex work. In such communities, they should try to either develop or adapt such stage-specific interventions, within which promoting the above-mentioned factors is the core priorities of the program.


Assuntos
Preservativos , Infecções por HIV , Conhecimentos, Atitudes e Prática em Saúde , Sexo Seguro , Profissionais do Sexo , Humanos , Feminino , Preservativos/estatística & dados numéricos , Profissionais do Sexo/psicologia , Profissionais do Sexo/estatística & dados numéricos , Irã (Geográfico) , Infecções por HIV/prevenção & controle , Adulto , Sexo Seguro/estatística & dados numéricos , Sexo Seguro/psicologia , Estudos Transversais , Promoção da Saúde/métodos , Desenvolvimento de Programas , Inquéritos e Questionários
13.
Gen Comp Endocrinol ; 356: 114578, 2024 Sep 15.
Artigo em Inglês | MEDLINE | ID: mdl-38971237

RESUMO

Crustaceans, which represent a significant subset of arthropods, are classified into three major classes: Ostracoda, Malacostraca, and Branchiopoda. Among them, sex manipulation in decapod species from the Malacostraca class has been extensively researched for aquaculture purposes and to study reproductive physiology and sexual plasticity. Some decapods exhibit sexual dimorphism that influences their biological and economic value. Monosex culture, in which only one sex is cultivated, increases production yields while reducing the risk of invasiveness, as genetic leakage into natural waters is less likely to occur. Differences in yield are also observed when cultivating different sexes, with all-male cultures of Macrobrachium rosenbergii being more profitable than both mixed and all-female cultures. Research on decapod sexual differentiation has led to a better understanding of sex determination and sexual differentiation processes in arthropods. Similar to most mammals and other vertebrate classes, Malacostraca crustaceans, including decapods, exhibit a cell-non-autonomous mode of sexual development. Genetic factors (e.g., sex chromosomes) and endocrine factors (e.g., insulin-like androgenic gland factor and crustacean female sex hormone) play pivotal roles in the development of sexually dimorphic traits. This review synthesizes the existing understanding of sex determination mechanisms and the role of sex hormones in decapod species. Additionally, it provides an overview of the methyl farnesoate, which has been suggested to be involved in male sex differentiation in some crab species, as well as the phenomenon of male-to-female sex reversal in host decapods caused by parasitic crustaceans.


Assuntos
Aquicultura , Crustáceos , Diferenciação Sexual , Animais , Diferenciação Sexual/fisiologia , Crustáceos/fisiologia , Masculino , Feminino
14.
BMC Womens Health ; 24(1): 141, 2024 Feb 24.
Artigo em Inglês | MEDLINE | ID: mdl-38402149

RESUMO

OBJECTIVE: Understanding HPV vaccination willingness and its influencing factors among female sex workers (FSWs) in entertainment venues in an urban area of Guangxi, China. METHODS: From 15 August to 15 October 2022, FSWs in entertainment venues with commercial sex trade in an urban area of Guangxi were selected as the study subjects for the questionnaire survey using the method of intentional sampling. The questionnaire based on the information-motivation-behavior (IMB) skills model was used to collect the basic characteristics, HPV and HPV vaccine-related information and cognition, motivation to vaccinate, behavioral skills and willingness to vaccinate from the research targets. A multifactor logistic regression model was used to analyze the factors influencing the research targets' willingness to receive HPV vaccination. RESULTS: Of the 921 research targets, 712 (77.31%) were willing to receive HPV vaccination. The higher the level of knowledge regarding HPV and HPV vaccine-related information, the higher the motivation for HPV vaccination. In addition, the higher the behavioral skills score, the higher the willingness of FSWs in entertainment venues to receive HPV vaccination (P<0.001). FSWs in entertainment venues with lower venue grades [OR(95% CI)=0.693 (0.539, 0.891), P=0.004] were more reluctant to receive HPV vaccination. Those who favored the effectiveness of the vaccine in preventing the disease [OR(95% CI)=2.144 (1.449, 3.174), P<0.001] and those who had heard of HPV vaccine [OR(95% CI)=2.105 (1.451, 3.054), P<0.001], were able to perceive the benefits of HPV vaccination [OR(95% CI)=1.134 (1.045, 1.230), P=0.002]. These individuals acquired greater behavioral skills i.e., self-decision making for HPV vaccination [OR(95% CI)=1.130 (1.008, 1.267), P=0.036] and self-efficacy [OR(95% CI)=1.135 (1.081, 1.191), P<0.001] and they were more willing to receive HPV vaccine. CONCLUSIONS: There was a relatively high HPV vaccination willingness among FSWs in entertainment venues in an urban area of Guangxi, China. Attention should be focused on introducing the benefits of primary prevention measures such as the HPV vaccine for individuals and behavioral skills for HPV vaccination in order to increase their willingness to be vaccinated thus increasing their HPV vaccination rate.


Assuntos
Infecções por Papillomavirus , Vacinas contra Papillomavirus , Profissionais do Sexo , Humanos , Feminino , Trabalho Sexual , Motivação , Infecções por Papillomavirus/prevenção & controle , China , Inquéritos e Questionários , Vacinas contra Papillomavirus/uso terapêutico , Vacinação , Conhecimentos, Atitudes e Prática em Saúde , Aceitação pelo Paciente de Cuidados de Saúde
15.
AIDS Res Ther ; 21(1): 16, 2024 03 19.
Artigo em Inglês | MEDLINE | ID: mdl-38504236

RESUMO

INTRODUCTION: Young female sex workers (YFSWs) face a higher risk of HIV infection compared to older workers, but there is a lack of comprehensive data on their sexual practices and HIV infection risks, which may present unique challenges and vulnerabilities. The study aimed to identify high-risk sexual practices associated with HIV infection among YFSWs in Lubumbashi. METHODS: We conducted an analytical cross-sectional study and used a comprehensive sample of all YFSWs who presented to the HIV/Sexually Transmitted Infections Screening and Treatment Center in Lubumbashi between April 2016 and December 2017. We collected data on socio-demographic characteristics and behavioral risk factors of female sex workers were collected using a structured questionnaire. Using STATA version 16, multivariate logistic regression was fitted and the results were presented as adjusted odds ratios (aORs) with their 95% confidence intervals (95% CIs). RESULTS: A total of 572 YFSWs were included in the study, 19 of whom were HIV-positive (3.3%; 95% CI: 2.1-5.1%). Participants who were forced to have sex (aOR = 12.2; 95% CI: 3.2-46.4; p < 0.0001), those who did not use condoms systematically (aOR = 4.1; 95% CI: 1.3-13.0; p = 0.018), and those who had anal sex (aOR = 23.8; 95% CI: 6.9-82.4; p < 0.0001) were more likely to be HIV-positive. CONCLUSION: The study reveals a concerning trend of higher hospital HIV prevalence among YFSWs compared to the general Congolese population. It also highlights a significant link between high-risk sexual practices and HIV infection, highlighting the need for urgent interventions.


Assuntos
Infecções por HIV , Profissionais do Sexo , Humanos , Feminino , Infecções por HIV/epidemiologia , Infecções por HIV/prevenção & controle , Estudos Transversais , República Democrática do Congo/epidemiologia , Comportamento Sexual , Fatores de Risco , Prevalência
16.
J Public Health (Oxf) ; 46(1): 72-82, 2024 Feb 23.
Artigo em Inglês | MEDLINE | ID: mdl-38031291

RESUMO

BACKGROUND: Female sex workers (FSW) are particularly vulnerable to chlamydia and gonorrhea infections. However, there were few studies that detail the evolving patterns of chlamydia and gonorrhea among Chinese FSW. Therefore, our study endeavors to assess the prevalence of chlamydia and gonorrhea epidemics within FSW, investigate their changing trends and scrutinize associated factors. METHODS: In 2019, China instituted a sentinel surveillance network focused on FSW in Guangdong Province. This network conducted an annual serial cross-sectional survey spanning from April to August. All analyses are predicated on surveillance data accumulated between 2019 and 2022. RESULTS: The prevalence of chlamydia increased from 10.1 to 12.3%, exhibiting an annual percentage shift of 6.8%. Conversely, the prevalence of gonorrhea dwindled from 2.0 to 1.3%, marking an annual percentage decline of 13.4% (P < 0.001). After adjusting for covariates, chlamydia exhibited associations with having household registration in other provinces (adjusted odds ratio (aOR = 0.55)), displaying symptoms of sexually transmitted infections (STIs) (aOR = 1.65) and infected with gonorrhea (aOR = 5.68). In parallel, gonorrhea demonstrated associations with providing oral sex to clients (aOR = 3.74), manifesting STIs symptoms (aOR = 4.27) and those infected with chlamydia (aOR = 5.43). CONCLUSIONS: Our observations underscore the imperative to implement a comprehensive intervention strategy concentrating on chlamydia, while simultaneously fortifying endeavors to expand the scope of gonorrhea prevention services.


Assuntos
Infecções por Chlamydia , Chlamydia , Gonorreia , Infecções por HIV , Profissionais do Sexo , Infecções Sexualmente Transmissíveis , Sífilis , Feminino , Humanos , Gonorreia/epidemiologia , Gonorreia/diagnóstico , Sífilis/epidemiologia , Estudos Transversais , Infecções por Chlamydia/epidemiologia , Infecções por Chlamydia/diagnóstico , Trabalho Sexual , China/epidemiologia , Prevalência , Infecções por HIV/epidemiologia
17.
BMC Public Health ; 24(1): 2512, 2024 Sep 16.
Artigo em Inglês | MEDLINE | ID: mdl-39285273

RESUMO

BACKGROUND: In Burkina Faso, only 70% of people living with HIV knew their status in 2018, while the first 95 target of the UNAIDS suggests that by 2025 at least 95% of people living with HIV (PLHIV) know their HIV status. Female sex workers (FSW) are one of the most HIV-vulnerable groups, making it crucial to estimate the rate and associated factors of HIV testing among FSW. METHODS: We conducted a cross-sectional study focused on FSW in five main cities of Burkina Faso (Ouagadougou, Bobo-Dioulasso, Koudougou, Tenkodogo, and Ouahigouya). A respondent-driven sampling (RDS) approach was used to recruit participants. Data were collected through in-person interviews between June and August 2022. The HIV testing rate in the past twelve months was examined by sociodemographic characteristics and risky behaviors. A modified Poisson regression in a generalized estimating equation with an exchangeable correlation structure was used to explore the associated factors of HIV testing. RESULTS: Of 1338 FSW (average age: 27.6 ± 7.25 years) HIV negative, 57.8% (95% CI: 54.2-61.3) reported having been tested for HIV in the last 12 months. Among those who started sex work before the age of 18, 48.0% (95% CI: 39.1-57.1) reported having been tested for HIV in the last 12 months. The HIV testing rate among FSWs within the last 12 months was independently associated with age, education level, and being member of an FSW supportive association. Indeed, FSW aged 25 years and more had a 14% higher rate of being tested for HIV within 12 months compared to those 15 to 24 years old (adjusted prevalence ratio (aPR): 1.14 [95%CI: 1.05-1.24]). The HIV testing rate among those who are not members of an FSW supportive association was 16% lower (aPR: 0.84 [95%CI: 0.72-0.97]) than those who are members of FSW supportive associations. CONCLUSION: The HIV testing rate among FSW is low in Burkina Faso, suggesting an important challenge to reach the first 95% target of UNAIDS among FSW. Innovative diagnostic strategies for the early identification of HIV-infected FSW are essential to achieve the first 95 target by 2025 in Burkina Faso.


Assuntos
Infecções por HIV , Teste de HIV , Profissionais do Sexo , Humanos , Burkina Faso/epidemiologia , Profissionais do Sexo/estatística & dados numéricos , Profissionais do Sexo/psicologia , Feminino , Adulto , Estudos Transversais , Teste de HIV/estatística & dados numéricos , Infecções por HIV/diagnóstico , Infecções por HIV/epidemiologia , Adulto Jovem , Adolescente , Estudos de Amostragem , Inquéritos e Questionários
18.
BMC Public Health ; 24(1): 2416, 2024 Sep 05.
Artigo em Inglês | MEDLINE | ID: mdl-39237891

RESUMO

BACKGROUND: HIV/AIDS has emerged as a nationwide epidemic and has taken the forefront position as the primary infectious killer of adults in China. The control and prevention of the disease have been hampered by a weak link in the form of heterosexual transmission. However, conventional intervention measures have demonstrated suboptimal efficacy in reducing the incidence of new HIV infections. In light of the current epidemiological characteristics, we have developed and executed an innovative intervention model known as the Joint Prevention and Control Mechanism of the 'CDC-Public Security Bureau-NGO'. The purpose of this research is to assess the impact of this model on the AIDS awareness, HIV infection rates, sexual behavior, and associated factors among female sex workers and elderly clients. Through the provision of robust evidence of the efficacy of this innovative model, we seek to advocate for its implementation in future interventions. METHODS: The research design of this study incorporates both a serial cross-sectional study and time-series analysis from 2014 to 2021, including a 4-year traditional intervention (2014-2017) and the 4-year 'CDC-Public Security Bureau-NGO' innovative intervention (2018-2021), was conducted to evaluate the effects of the new intervention. The GM(1, 1) model was performed to predict the proportion of HIV infection without implementing the innovative intervention in 2018-2021; P and C values were used to evaluate the performance of the model. Mann-Kendall test and descriptive methods were used to analyzed the trend of traditional and innovative interventions models on HIV positive detection rate in FSWs and elderly clients. RESULTS: The condom usage rates during the last commercial sexual encounter for FSWs and elderly clients improved from 74.9% and 9.1%, respectively, to 96.9% and 28.1%. (P < 0.05), newly reported cases of HIV have decreased by 15.56% yearly and the HIV positive detection rate among middle-aged and elderly people has dropped by 14.47%. The innovative intervention model has significantly reduced the HIV infection rates. CONCLUSIONS: The 'CDC-Public Security Bureau-NGO' innovative intervention has achieved beneficial effects on HIV/AIDS prevention and control and provides a good reference for Guangxi, China.


Assuntos
Infecções por HIV , Humanos , China/epidemiologia , Feminino , Adulto , Estudos Transversais , Estados Unidos/epidemiologia , Infecções por HIV/prevenção & controle , Infecções por HIV/epidemiologia , Pessoa de Meia-Idade , Centers for Disease Control and Prevention, U.S. , Síndrome da Imunodeficiência Adquirida/prevenção & controle , Síndrome da Imunodeficiência Adquirida/epidemiologia , Profissionais do Sexo/estatística & dados numéricos , Idoso , Adulto Jovem , Comportamento Sexual/estatística & dados numéricos , Masculino , Conhecimentos, Atitudes e Prática em Saúde
19.
BMC Public Health ; 24(1): 2711, 2024 Oct 04.
Artigo em Inglês | MEDLINE | ID: mdl-39367332

RESUMO

BACKGROUND: Female sex workers (FSWs) in Mozambique face significant health risks, including high HIV prevalence, combination of factors, including inconsistent condom use, engagement in risky sexual behaviors, and various socio-ecological determinants of health. Understanding the determinants of these practices is crucial for developing targeted interventions. METHODS: This cross-sectional study analyzed data from the second round of Biobehavioral Survey (BBS) conducted from 2019 to 2020 in five urban areas to examine determinants of inconsistent condom use and risky sexual behaviors among FSWs. Modified Poisson regression models were used to assess the effect of various socio-demographic, economic, and behavioral factors on the outcomes, providing adjusted relative risk (aRR) with 95% confidence intervals (CI). RESULTS: Among the 2,565 FSWs who reported inconsistent condom use, younger FSWs (15-24 years old, 29.1%), single (27.3%), with secondary or higher education (26.1%), nationals (25.9%), and residents of Tete City (30.5%) had a higher prevalence of inconsistent condom use. Initiating sex work < 18 years (31.0%), binge drinking (23.7%), and experiencing physical violence (29.0%) were significantly associated with this behavior. Among the 2,564 FSWs reporting risky sexual behaviors, a higher prevalence was observed in FSWs aged 15-24 (75.6%), those with secondary or higher education (75.8%), nationals (74.4%), and those residing in Quelimane (87.3%). Early sexual debut (< 15 years, 79.3%), initiating sex work before 18 years of age (77.7%), and illicit drug use (82.2%) were all associated with increased risky sexual practices. Inconsistent condom use among FSWs was significantly associated with residing in Tete (aRR = 2.4, 95% CI: 1.77-3.25), not being aware of female condom (aRR = 1.22, 95% CI: 1.03-1.45) and having experienced sexual a physical violence. Moreover, being married was significantly linked to risky sexual behavior among female sex workers (aRR = 1.27, 95% CI: 1.19-1.37), along with initiating sexual activity before age 15, having at least five years of sex work experience, engaging in binge drinking, and experiencing sexual and physical violence. CONCLUSION: The study highlights the complex set of factors as age, education, geographic location, years of sex work services, early sexual debut, and illicit drug use that influence sexual risks behavior among FSWs in Mozambique. Tailored interventions addressing not only sexual health education and services, but also economic empowerment and illicit drug use is imperative for mitigating these risks.


Assuntos
Preservativos , Profissionais do Sexo , Humanos , Moçambique/epidemiologia , Feminino , Profissionais do Sexo/estatística & dados numéricos , Profissionais do Sexo/psicologia , Estudos Transversais , Adulto Jovem , Adolescente , Preservativos/estatística & dados numéricos , Adulto , Assunção de Riscos , Comportamento Sexual/estatística & dados numéricos , Infecções por HIV/epidemiologia , Infecções por HIV/prevenção & controle
20.
BMC Public Health ; 24(1): 2873, 2024 Oct 18.
Artigo em Inglês | MEDLINE | ID: mdl-39425054

RESUMO

BACKGROUND: HIV prevalence among female sex workers (FSW) is significantly higher than among women in the general population. Studies have shown that FSW engage in unprotected sex which provides higher compensation when they face emergency situations. We co-created a savings intervention - Jitegemee (rely on yourself) - with FSW to encourage them to save part of their earnings to withdraw in emergency situations in order to reduce risk. METHODS: We undertook a five-phase intervention development process between February 2021 and July 2023: 1) qualitative interviews with FSW to identify essential intervention features; 2) pilot trial to assess intervention feasibility; 3) literature review of studies on economic empowerment of FSW; 4) scoring of key components of Phases 1-3 on a scale of 1-5 (1 = definitely exclude, 5 = definitely include), for inclusion in the intervention package; 5) workshops with FSW and other key stakeholders to co-design the intervention. RESULTS: In phase 1, nearly all participants (99%) found the intervention acceptable to them and 95% believed it would be acceptable to other FSW. Participants suggested inclusion of financial literacy (75%), savings groups (38%) and goal-setting (24%). In the feasibility assessment, 41% saved, of whom 46% withdrew some savings. Condom use was higher among FSW who withdrew their savings compared to those who did not (χ2 7.52; p = 0.006). In Phase 3, we identified 14 intervention components. In phase 4, all suggested intervention components scored 4.5 on average. In phase 5, we held 3 workshops with FSW to co-design the intervention, which included instructions for how to save and make withdrawals, financial literacy training, and formation of savings groups. CONCLUSIONS: A savings intervention for and by FSW was highly acceptable and feasible. Involving end-users in the design process is likely to result in greater economic security among FSW and lower engagement in higher risk transactional sex.


Assuntos
Infecções por HIV , Profissionais do Sexo , Humanos , Profissionais do Sexo/psicologia , Profissionais do Sexo/estatística & dados numéricos , Quênia , Feminino , Infecções por HIV/prevenção & controle , Adulto , Pesquisa Qualitativa , Adulto Jovem , Comportamento de Redução do Risco , Projetos Piloto
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