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1.
Front Reprod Health ; 3: 639391, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-36304054

RESUMO

Background: Understanding young women and men's perceived barriers and facilitators to participation in biomedical HIV prevention research is important for designing youth friendly services (YFS) and acceptable technologies, which are necessary for preventing high sustained HIV incidence in South Africa. This study explores the multileveled barriers and facilitators to young men and women's willingness to participate in hypothetical biomedical HIV prevention research. Methods: Eight age- (16-18 and 19-24 years) and gender-stratified focus group discussions (FGDs) were conducted using semi-structured interview guides to explore young South African women and men's willingness, perceived barriers, and facilitators to participating in biomedical HIV prevention research. FGD transcripts were uploaded to NVivo and coded collaboratively with youth study team members. Thematic analysis using Bronfenbrenner's ecological model (individual, inter-personal, community, and societal) was used to guide a deductive coding procedure, which was documented and compared by gender. Results: Thirty-one participants from Durban and 34 from Soweto participated in FGDs. Individual facilitators for participation were discussed more by young men and included financial incentives and altruism. Concerns about side-effects of biomedical products were a common barrier. Interpersonal relationships with peers, intimate partners and caregivers influenced young people's willingness to participate in HIV prevention research, more so among young women. For young women, gendered power dynamics and distrust of intimate partners and parents influenced both communication regarding participation and willingness to participate in research that is often stigmatized, due to societal norms around women's sexuality. On a societal level, participants expressed distrust in medical and research institutions, however a sense of community that was developed with the study staff of this project, was a motivator to participate in future studies. Discussion: At each level of the ecological model, we found participants expressed gendered barriers and facilitators for participation. Gender norms as well as distrust of partners, parents, and health care professionals were key barriers that cut across all levels. At each level participants discussed facilitators that were youth-engaged, underscoring the need to implement YFS, establish trust and address gender inequities within future biomedical HIV prevention studies wishing to engage and retain South African youth.

2.
Int J Behav Med ; 26(2): 207-216, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-30805768

RESUMO

BACKGROUND: Psychosocial risks during pregnancy impact maternal health in resource-limited settings, and HIV-positive women often bear a heavy burden of these factors. This study sought to use network modeling to characterize co-occurring psychosocial risks to maternal and child health among at-risk pregnant women. METHODS: Two hundred pregnant HIV-positive women attending antenatal care in South Africa were enrolled. Measured risk factors included younger age, low income, low education, unemployment, unintended pregnancy, distress about pregnancy, antenatal depression, internalized HIV stigma, violence exposure, and lack of social support. Network analysis between risk factors was conducted in R using mixed graphical modeling. Centrality statistics were examined for each risk node in the network. RESULTS: In the resulting network, unintended pregnancy was strongly tied to distress about pregnancy. Distress about pregnancy was most central in the network and was connected to antenatal depression and HIV stigma. Unintended pregnancy was also associated with lack of social support, which was itself linked to antenatal depression, HIV stigma, and low income. Finally, antenatal depression was connected to violence exposure. CONCLUSIONS: Our results characterize a network of psychosocial risks among pregnant HIV-positive women. Distress about pregnancy emerged as central to this network, suggesting that unintended pregnancy is particularly distressing in this population and may contribute to further risks to maternal health, such as depression. Prevention of unintended pregnancies and interventions for coping with unplanned pregnancies may be particularly useful where multiple risks intersect. Efforts addressing single risk factors should consider an integrated, multilevel approach to support women during pregnancy. TRIAL REGISTRATION: ClinicalTrials.gov identifier: NCT03069417.


Assuntos
Cuidado Pré-Natal , Estigma Social , Apoio Social , Sindemia , Adolescente , Adulto , Depressão/epidemiologia , Feminino , Humanos , Gravidez , Gestantes , Fatores de Risco , África do Sul , Adulto Jovem
3.
BMC Infect Dis ; 18(1): 499, 2018 Oct 03.
Artigo em Inglês | MEDLINE | ID: mdl-30285705

RESUMO

BACKGROUND: Youth in southern Africa, particularly adolescent girls and young women, are a key population for HIV prevention interventions. Untreated genital tract infections (GTIs) increase both HIV transmission and acquisition risks. South African GTI treatment guidelines employ syndromic management, which relies on individuals to report GTI signs and symptoms. Syndromic management may, however, underestimate cases, particularly among youth. We compared genital tract infection (GTI) prevalence by symptom-based and laboratory assessment among sexually-experienced youth in South Africa, overall and stratified by sex. METHODS: Interviewer-administered surveys assessed socio-demographics, behaviors, and GTI symptoms among 352 youth (16-24 yrs., HIV-negative or unknown HIV status at enrollment) enrolled in community-based cohorts in Durban and Soweto (2014-2016). Laboratory tests assessed HIV, Chlamydia trachomatis (CT), Neisseria gonorrhoeae (NG), Mycoplasma genitalium (MG), Trichomonas vaginalis (TV) infections and, among females, bacterial vaginosis (BV) and Candida species. Youth with genital ulcers were tested for HSV-2 and syphilis. We assessed sensitivity (and specificity) of symptom-based reporting in identifying laboratory-confirmed GTIs. RESULTS: At baseline, 16.2% of females (32/198) and < 1% (1/154) of males reported ≥1 GTI symptom. However, laboratory tests identified ≥1 GTI in 70.2% and 10.4%, respectively. Female CT prevalence was 18.2%, NG 7.1%, MG 9.6%, TV 8.1%, and 5.1% were newly diagnosed with HIV. BV prevalence was 53.0% and candidiasis 9.6%. One female case of herpes was identified (0 syphilis). Male CT prevalence was 7.8%, NG 1.3%, MG 3.3%, TV < 1%, and 2.0% were newly diagnosed with HIV. Overall, 77.8% of females and 100% of males with laboratory-diagnosed GTIs reported no symptoms or were asymptomatic. Sensitivity (and specificity) of symptom-based reporting was 14% (97%) among females and 0% (99%) among males. CONCLUSION: A high prevalence of asymptomatic GTIs and very poor sensitivity of symptom-based reporting undermines the applicability of syndromic GTI management, thus compromising GTI control and HIV prevention efforts among youth. Syndromic GTI management does not meet the sexual health needs of young people. Policy changes incorporating innovations in GTI diagnostic testing are needed to reduce GTIs and HIV-associated risks among youth.


Assuntos
Infecções do Sistema Genital/epidemiologia , Infecções Sexualmente Transmissíveis/epidemiologia , Adolescente , África Austral/epidemiologia , Candidíase/epidemiologia , Infecções por Chlamydia/epidemiologia , Feminino , Gonorreia/epidemiologia , Infecções por HIV/epidemiologia , Herpes Simples/epidemiologia , Humanos , Masculino , África do Sul/epidemiologia , Sífilis/epidemiologia , Tricomoníase/epidemiologia , Vaginite por Trichomonas/epidemiologia , Vaginose Bacteriana/epidemiologia , Adulto Jovem
4.
Trop Med Int Health ; 23(7): 774-784, 2018 07.
Artigo em Inglês | MEDLINE | ID: mdl-29752836

RESUMO

OBJECTIVES: To enhance uptake of sexual and reproductive health (SRH) services by female sex workers (FSWs), we conducted an implementation study in which we piloted and tested context-specific 'diagonal' interventions, combining vertical, targeted interventions with horizontally improved access to the general health services, in three cities in sub-Saharan Africa. METHODS: We collected indicators of SRH service uptake through face-to-face interviews with approximately 400 FSWs, pre- and post-intervention, in Durban, South Africa; Tete, Mozambique; and Mombasa, Kenya, recruited by respondent-driven sampling. Changes in uptake were tested for their statistical significance using multivariate logistic regression models. RESULTS: In all cities, overall uptake of services increased. Having used all services for contraception, STI care, HIV testing, HIV care, cervical cancer screening and sexual violence, if needed, increased from 12.5% to 41.5% in Durban, 25.0% to 40.1% in Tete and 44.9% to 69.1% in Mombasa. Across cities, the effect was greatest in having been tested for HIV in the past six months which increased from 40.9% to 83.2% in Durban, 56.0% to 76.6% in Tete and 70.9% to 87.6% in Mombasa. In Tete and Mombasa, rise in SRH service use was almost entirely due to a greater uptake of targeted services. Only in Durban was there additionally an increase in the utilisation of general health services. CONCLUSION: SRH service utilisation improved in the short-term in three different sub-Saharan African contexts, primarily through vertical, targeted components. The long-term effectiveness of diagonal approaches, in particular on the use of general, horizontal health services, needs further investigation.


Assuntos
Infecções por HIV/epidemiologia , Aceitação pelo Paciente de Cuidados de Saúde , Serviços de Saúde Reprodutiva/estatística & dados numéricos , Profissionais do Sexo , Infecções Sexualmente Transmissíveis/epidemiologia , Adulto , África Subsaariana/epidemiologia , Cidades , Estudos Transversais , Feminino , Infecções por HIV/prevenção & controle , Infecções por HIV/transmissão , Humanos , Infecções Sexualmente Transmissíveis/prevenção & controle , Infecções Sexualmente Transmissíveis/transmissão , Serviços de Saúde da Mulher/estatística & dados numéricos
5.
Artigo em Inglês | MEDLINE | ID: mdl-30766716

RESUMO

BACKGROUND: In South Africa, hormonal contraception is widely used in women over the age of 40 years. One of these methods and the most commonly used is depot-medroxyprogesterone acetate (DMPA) which has been found to have a negative effect on bone mass. Limited information is available on the effect of norethisterone enanthate (NET-EN) on bone mass, and combined oral contraceptives (COCs) have not been found to be associated with loss of bone mass. The aim of this study was to investigate bone mineral density (BMD) in pre and perimenopausal women (40-49 years) in relation to use of DMPA, NET-EN and COCs for at least 12 months preceding recruitment into the study and review associations with body mass index (BMI) and menopausal status. METHODS: One hundred and twenty seven users of DMPA, 102 NET-EN users and 106 COC users were compared to 161 nonuser controls. Menopausal status was assessed, BMI and forearm BMD was measured at the distal radius using dual X-ray absorptiometry. Comparison analysis was conducted at baseline and 2.5 years. RESULTS: There was no significant difference in BMD between the four contraceptive user groups (p = 0.26) with and without adjustment for age at baseline or at 2.5 years (p = 0.52). The BMD was found to be significantly associated with BMI (p = < 0.0001) with an increase of one unit of BMI translating to an increase of 0.0044 g/cm2 in radius BMD. Follicle stimulating hormone (FSH) level ≥ 25.8 mIU/mL was associated with a decrease of 0.017 g/cm2 in radius BMD relative to women with FSH < 25.8 mIU/mL. Significant interaction between FSH and BMI in their effect on BMD was observed (p = .006). CONCLUSION: This study found no evidence that long-term use of DMPA, NET-EN and COCs affects forearm BMD in this population at baseline or after 2.5 years of follow-up. This study also reports the complex relationship and significant interaction between FSH and BMI in their effect on BMD. BMD research in older women needs to ensure that women are assessed for menopausal status and BMI.

6.
Reprod Health ; 14(1): 13, 2017 Jan 19.
Artigo em Inglês | MEDLINE | ID: mdl-28103896

RESUMO

BACKGROUND: Female sex workers (FSWs) are extremely vulnerable to adverse sexual and reproductive health (SRH) outcomes. To mitigate these risks, they require access to services covering not only HIV prevention but also contraception, cervical cancer screening and sexual violence. To develop context-specific intervention packages to improve uptake, we identified gaps in service utilization in four different cities. METHODS: A cross-sectional survey was conducted, as part of the baseline assessment of an implementation research project. FWSs were recruited in Durban, South Africa (n = 400), Mombasa, Kenya (n = 400), Mysore, India (n = 458) and Tete, Mozambique (n = 308), using respondent-driven sampling (RDS) and starting with 8-16 'seeds' identified by the peer educators. FSWs responded to a standardised interviewer-administered questionnaire about the use of contraceptive methods and services for cervical cancer screening, sexual violence and unwanted pregnancies. RDS-adjusted proportions and surrounding 95% confidence intervals were estimated by non-parametric bootstrapping, and compared across cities using post-hoc pairwise comparison tests with Dunn-Sidák correction. RESULTS: Current use of any modern contraception ranged from 86.2% in Tete to 98.4% in Mombasa (p = 0.001), while non-barrier contraception (hormonal, IUD or sterilisation) varied from 33.4% in Durban to 85.1% in Mysore (p < 0.001). Ever having used emergency contraception ranged from 2.4% in Mysore to 38.1% in Mombasa (p < 0.001), ever having been screened for cervical cancer from 0.0% in Tete to 29.0% in Durban (p < 0.001), and having gone to a health facility for a termination of an unwanted pregnancy from 15.0% in Durban to 93.7% in Mysore (p < 0.001). Having sought medical care after forced sex varied from 34.4% in Mombasa to 51.9% in Mysore (p = 0.860). Many of the differences between cities remained statistically significant after adjusting for variations in FSWs' sociodemographic characteristics. CONCLUSION: The use of SRH commodities and services by FSWs is often low and is highly context-specific. Reasons for variation across cities need to be further explored. The differences are unlikely caused by differences in socio-demographic characteristics and more probably stem from differences in the availability and accessibility of SRH services. Intervention packages to improve use of contraceptives and SRH services should be tailored to the particular gaps in each city.


Assuntos
Aceitação pelo Paciente de Cuidados de Saúde , Serviços de Saúde Reprodutiva/estatística & dados numéricos , Profissionais do Sexo/estatística & dados numéricos , Adulto , Anticoncepção , Estudos Transversais , Feminino , Financiamento Pessoal , Humanos , Índia , Quênia , Moçambique , Gravidez , Comportamento Sexual , Parceiros Sexuais , África do Sul , Adulto Jovem
7.
Trop Med Int Health ; 21(10): 1293-1303, 2016 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-27479236

RESUMO

OBJECTIVE: To identify gaps in the use of HIV prevention and care services and commodities for female sex workers, we conducted a baseline cross-sectional survey in four cities, in the context of an implementation research project aiming to improve use of sexual and reproductive health services. METHODS: Using respondent-driven sampling, 400 sex workers were recruited in Durban, 308 in Tete, 400 in Mombasa and 458 in Mysore and interviewed face-to-face. RDS-adjusted proportions were estimated by nonparametric bootstrapping and compared across cities using post hoc pairwise comparison. RESULTS: Condom use with last client ranged from 88.3% to 96.8%, ever female condom use from 1.6% to 37.9%, HIV testing within the past 6 months from 40.5% to 70.9%, receiving HIV treatment and care from 35.5% to 92.7%, care seeking for last STI from 74.4% to 87.6% and having had at least 10 contacts with a peer educator in the past year from 5.7% to 98.1%. Many of the differences between cities remained statistically significant (P < 0.05) after adjusting for differences in FSWs' socio-demographic characteristics. CONCLUSION: The use of HIV prevention and care by FSWs is often insufficient and differed greatly between cities. Differences could not be explained by variations in socio-demographic sex worker characteristics. Models to improve use of condoms and HIV prevention and care services should be tailored to the specific context of each site. Programmes at each site must focus on improving availability and uptake of those services that are currently least used.


Assuntos
Infecções por HIV/prevenção & controle , Comportamentos Relacionados com a Saúde , Aceitação pelo Paciente de Cuidados de Saúde , Profissionais do Sexo/psicologia , Adolescente , Adulto , Cidades , Estudos Transversais , Feminino , Humanos , Índia/epidemiologia , Quênia/epidemiologia , Moçambique/epidemiologia , África do Sul/epidemiologia
8.
PLoS One ; 11(8): e0160730, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27494412

RESUMO

BACKGROUND: A baseline cross-sectional survey among female sex workers (FSWs) was conducted in four cities within the context of an implementation research project aiming to improve FSWs' access to HIV, and sexual and reproductive health (SRH) services. The survey measured where FSWs seek HIV/SRH care and what motivates their choice. METHODS: Using respondent-driven sampling (RDS), FWSs were recruited in Durban, South Africa (n = 400), Tete, Mozambique (n = 308), Mombasa, Kenya (n = 400) and Mysore, India (n = 458) and interviewed. RDS-adjusted proportions were estimated by non-parametric bootstrapping, and compared across cities using post-hoc pairwise comparison tests. RESULTS: Across cities, FSWs most commonly sought care for the majority of HIV/SRH services at public health facilities, most especially in Durban (ranging from 65% for condoms to 97% for HIV care). Services specifically targeting FSWs only had a high coverage in Mysore for STI care (89%) and HIV testing (79%). Private-for-profit clinics were important providers in Mombasa (ranging from 17% for STI care and HIV testing to 43% for HIV care), but not in the other cities. The most important reason for the choice of care provider in Durban and Mombasa was proximity, in Tete 'where they always go', and in Mysore cost of care. Where available, clinics specifically targeting FSWs were more often chosen because of shorter waiting times, perceived higher quality of care, more privacy and friendlier personnel. CONCLUSION: The place where care is sought for HIV/SRH services differs substantially between cities. Targeted services have limited coverage in the African cities compared to Mysore. Convenience appears more important for choosing the place of care than aspects of quality of care. The best model to improve access, linking targeted interventions with general health services, will need to be tailored to the specific context of each city.


Assuntos
Comportamento de Escolha , Infecções por HIV/psicologia , Serviços de Saúde Reprodutiva/estatística & dados numéricos , Profissionais do Sexo/psicologia , Comportamento Sexual/psicologia , Adulto , Estudos Transversais , Feminino , Infecções por HIV/epidemiologia , Infecções por HIV/virologia , HIV-1/isolamento & purificação , Humanos , Índia/epidemiologia , Quênia/epidemiologia , Motivação , Moçambique/epidemiologia , Aceitação pelo Paciente de Cuidados de Saúde , África do Sul/epidemiologia , Adulto Jovem
9.
BMC Public Health ; 16: 608, 2016 07 20.
Artigo em Inglês | MEDLINE | ID: mdl-27440108

RESUMO

BACKGROUND: In the context of an operational research project in Tete, Mozambique, use of, and barriers to, HIV and sexual and reproductive health (HIV/SRH) commodities and services for female sex workers (FSWs) were assessed as part of a baseline situational analysis. METHODS: In a cross-sectional survey 311 FSWs were recruited using respondent driven sampling and interviewed face-to-face, and three focus group discussions were held with respectively 6 full-time Mozambican, 7 occasional Mozambican and 9 full-time Zimbabwean FSWs, to investigate use of, and barriers to, HIV/SRH care. RESULTS: The cross-sectional survey showed that 71 % of FSWs used non-barrier contraception, 78 % sought care for their last sexually transmitted infection episode, 51 % of HIV-negative FSWs was tested for HIV in the last 6 months, 83 % of HIV-positive FSWs were in HIV care, 55 % sought help at a health facility for their last unwanted pregnancy and 48 % after sexual assault, and none was ever screened for cervical cancer. Local public health facilities were by far the most common place where care was sought, followed by an NGO-operated clinic targeting FSWs, and places outside the Tete area. In the focus group discussions, FSWs expressed dissatisfaction with the public health services, as a result of being asked for bribes, being badly attended by some care providers, stigmatisation and breaches of confidentiality. The service most lacking was said to be termination of unwanted pregnancies. CONCLUSIONS: The use of most HIV and SRH services is insufficient in this FSW population. The public health sector is the main provider, but access is hampered by several barriers. The reach of a FSW-specific NGO clinic is limited. Access to, and use of, HIV and SRH services should be improved by reducing barriers at public health facilities, broadening the range of services and expanding the reach of the targeted NGO clinic.


Assuntos
Acessibilidade aos Serviços de Saúde , Aceitação pelo Paciente de Cuidados de Saúde/psicologia , Serviços de Saúde Reprodutiva/estatística & dados numéricos , Profissionais do Sexo/psicologia , Comportamento Sexual/psicologia , Adulto , Instituições de Assistência Ambulatorial/estatística & dados numéricos , Comportamento Contraceptivo/psicologia , Estudos Transversais , Feminino , Grupos Focais , Infecções por HIV/psicologia , Humanos , Moçambique , Gravidez , Gravidez não Desejada/psicologia , Delitos Sexuais/psicologia , Infecções Sexualmente Transmissíveis/psicologia , Inquéritos e Questionários , Adulto Jovem
10.
BMC Health Serv Res ; 16: 301, 2016 07 26.
Artigo em Inglês | MEDLINE | ID: mdl-27456516

RESUMO

BACKGROUND: In the context of an implementation research project aiming at improving use of HIV and sexual and reproductive health (SRH) services for female sex workers (FSWs), a broad situational analysis was conducted in Tete, Mozambique, assessing if services are adapted to the needs of FSWs. METHODS: Methods comprised (1) a policy analysis including a review of national guidelines and interviews with policy makers, and (2) health facility assessments at 6 public and 1 private health facilities, and 1 clinic specifically targeting FSWs, consisting of an audit checklist, interviews with 18 HIV/SRH care providers and interviews of 99 HIV/SRH care users. RESULTS: There exist national guidelines for most HIV/SRH care services, but none provides guidance for care adapted to the needs of high-risk women such as FSWs. The Ministry of Health recently initiated the process of establishing guidelines for attendance of key populations, including FSWs, at public health facilities. Policy makers have different views on the best approach for providing services to FSWs-integrated in the general health services or through parallel services for key populations-and there exists no national strategy. The most important provider of HIV/SRH services in the study area is the government. Most basic services are widely available, with the exception of certain family planning methods, cervical cancer screening, services for victims of sexual and gender-based violence, and termination of pregnancy (TOP). The public facilities face serious limitations in term of space, staff, equipment, regular supplies and adequate provider practices. A stand-alone clinic targeting key populations offers a limited range of services to the FSW population in part of the area. Private clinics offer only a few services, at commercial prices. CONCLUSION: There is a need to improve the availability of quality HIV/SRH services in general and to FSWs specifically, and to develop guidelines for care adapted to the needs of FSWs. Access for FSWs can be improved by either expanding the range of services and the coverage of the targeted clinic and/or by improving access to adapted care at the public health services and ensure a minimum standard of quality.


Assuntos
Infecções por HIV/prevenção & controle , Serviços de Saúde Reprodutiva/organização & administração , Profissionais do Sexo/estatística & dados numéricos , Adulto , Assistência Ambulatorial/organização & administração , Assistência Ambulatorial/normas , Instituições de Assistência Ambulatorial/organização & administração , Instituições de Assistência Ambulatorial/normas , Feminino , Política de Saúde , Humanos , Moçambique , Avaliação das Necessidades , Formulação de Políticas , Gravidez , Saúde Reprodutiva , Serviços de Saúde Reprodutiva/normas , Comportamento Sexual , Adulto Jovem
11.
Clin Trials ; 10(1): 125-30, 2013 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-23188890

RESUMO

BACKGROUND: To avoid selection bias in clinical trials, random allocation concealment is crucial to ensure that participants and or researchers remain unaware of assignments. PURPOSE: We aimed to design an allocation concealment method that reduced the possibility of selection bias for a randomized, open-label, crossover trial to evaluate device function of four female condom (FC) types. METHODS: Using scratch card technology, we devised a simple method of concealment, whereby the treatment sequence was printed on a single card for each participant, and the codes for each treatment in the sequence were concealed beneath foil squares on a stiff A6-sized card. On the first and subsequent follow-up visits, the foil corresponding to that visit was scratched from the square to reveal the condom type allocation for the next condom-use period. Staff in the South African and Chinese trial sites were trained in use and care of the card, and on completion of the study completed a questionnaire on their experience of use. RESULTS: Research staff in both countries found the card easy to use and those who had previously used the sequentially numbered, opaque, sealed envelopes (SNOSE) system for random allocation reported the scratch card easier to use. Research staff most commonly used a coin to remove the foil square and some used their fingernails. In both South Africa and China, no errors in allocation sequence were found during study monitoring. LIMITATIONS: Scratch card system of allocation cannot be printed in-house. CONCLUSIONS: This novel, effective method of concealment for a crossover random allocation was well liked by study staff. The most important advantage of this method is the ability to conceal consecutive allocations of a crossover design using a single card, thus eliminating the need for multiple envelopes per participant. While we used this method in a clinical trial of FCs, it could be employed in a range of other clinical trials and other randomized studies.


Assuntos
Estudos Cross-Over , Ensaios Clínicos Controlados Aleatórios como Assunto/instrumentação , Ensaios Clínicos Controlados Aleatórios como Assunto/métodos , China , Preservativos Femininos , Feminino , Humanos , Projetos de Pesquisa , Viés de Seleção , África do Sul , Materiais de Ensino
12.
S Afr Med J ; 101(2): 131-5, 2011 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-21678742

RESUMO

BACKGROUND: Determining symptoms of menopause in older users of hormonal injectable contraceptives may be challenging, owing to method-induced amenorrhoea, suppression of follicle-stimulating hormone (FSH) and vasomotor symptoms. OBJECTIVE: To investigate menopausal symptoms in women aged 40 - 49 using injectable contraceptives depot-medroxyprogesterone acetate (DMPA), norethisterone enanthate (NET-EN) or combined oral contraceptives (COCs), compared with non-users of hormonal contraception. METHODS: Women using DMPA (N = 127), NET-EN (N = 102), COCs (N = 106) and 161 non-hormonal contraceptive user controls were recruited. Baseline visit serum FSH was measured and information was collected on vasomotor symptoms and menstrual regularity. RESULTS: There was no difference in reporting of vasomotor symptoms between the groups. There was no evidence of a difference in FSH level between non-users (mean FSH 26.7 IU/ml, SD 28.7) and DMPA users (mean FSH 23.1 IU/ml, SD 27.8) (p = 0.64). However, the NET-EN (mean FSH 11.0 IU/ml, SD 10.9) (p = 0.003) and COC groups (mean FSH 12.5 IU/ml, SD 18.7) (p = 0.001) had significantly lower FSH levels compared with the non-user group. CONCLUSION: The lower FSH levels found in the NET-EN and COC users compared with controls may indicate a greater degree of suppression of FSH levels in these two methods, compared with DMPA. Measuring FSH levels may therefore be informative of menopausal status in DMPA users but not in NET-EN or COC users. Vasomotor symptoms may assist in assessing menopausal status in DMPA, NET-EN and COC users.


Assuntos
Anticoncepcionais Femininos/farmacologia , Anticoncepcionais Orais Combinados/farmacologia , Hormônio Foliculoestimulante/sangue , Acetato de Medroxiprogesterona/farmacologia , Menopausa/efeitos dos fármacos , Noretindrona/análogos & derivados , Adulto , Feminino , Humanos , Menopausa/sangue , Pessoa de Meia-Idade , Noretindrona/farmacologia
13.
Contraception ; 81(1): 30-4, 2010 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-20004270

RESUMO

BACKGROUND: Weight gain is commonly reported as a side effect of hormonal contraception and can lead to method discontinuation or reluctance to initiate the method. The purpose of this study was to investigate weight change in adolescent (aged 15-19 years) users of depot-medroxyprogesterone acetate (DMPA), norethisterone enanthate (NET-EN), combined oral contraceptives (COCs) and discontinuers of these methods as compared to nonusers of hormonal contraception. STUDY DESIGN: This longitudinal study recruited initiators of DMPA (n=115), NET-EN (n=115), COCs (n=116) and nonusers of contraception (n=144). Participants were followed up for 4-5 years, and details of current contraceptive method, including switching, discontinuing and/or starting hormonal methods were documented at each 6-monthly visit. Women were classified according to their contraceptive histories on completion of the study, and injectable users were combined into one group for analysis. Height, weight and self-reported dieting were recorded at each visit. RESULTS: There was no difference in mean age or weight between the groups at baseline. Women using DMPA or NET-EN throughout, or switching between the two, had gained an average of 6.2 kg compared to average increases of 2.3 kg in the COC group, 2.8 kg in nonusers and 2.8 kg among discontinued users of any method (p=.02). There was no evidence of a difference in weight gain between women classified as nonobese or classified as overweight/obese in any of the four study groups at baseline. CONCLUSION: There is fairly strong evidence that adolescent contraceptive hormonal injectable users appear to gain more weight than COC users, discontinuers and nonusers of contraception.


Assuntos
Comportamento Contraceptivo/estatística & dados numéricos , Anticoncepcionais Orais Combinados/efeitos adversos , Acetato de Medroxiprogesterona/efeitos adversos , Noretindrona/análogos & derivados , Aumento de Peso/efeitos dos fármacos , Suspensão de Tratamento/estatística & dados numéricos , Adolescente , Índice de Massa Corporal , Peso Corporal/efeitos dos fármacos , Feminino , Humanos , Estudos Longitudinais , Noretindrona/efeitos adversos , Estudos Prospectivos , Adulto Jovem
14.
Contraception ; 80(2): 128-32, 2009 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-19631787

RESUMO

BACKGROUND: Use of depot-medroxyprogesterone acetate (DMPA), norethisterone enanthate (NET-EN) and low-dose combined oral contraceptives (COCs) has been associated with loss of bone mineral density (BMD) in adolescents. However, the effect of using a combination of these methods over time in this age group is limited. The aim of this cross-sectional study was to investigate BMD in young women (aged 19-24 years) with a history of mixed hormonal contraceptive use. STUDY DESIGN: BMD was measured at the spine, hip and femoral neck using dual X-ray absorptiometry. Women were classified into three groups: (1) injectable users (DMPA, NET-EN or both) (n=40), (2) mixed COC and injectable users (n=13) and (3) non-user control (n=41). RESULTS: Women in the injectables-only user group were found to have lower BMDs compared to the non-user group at all three sites, and there was evidence of a difference in BMD between these two groups at the spine after adjusting for body mass index (p=.042), hip (p=.025) and femoral neck (p=.023). The mixed COC/injectable user group BMD values were lower than those for controls; however, there was no evidence of a significant difference between this group and the non-user group at any of the three sites. CONCLUSION: This study suggests that BMD is lower in long-term injectable users but not when women have mixed injectable and COC use.


Assuntos
Doenças Ósseas Metabólicas/induzido quimicamente , Anticoncepcionais Orais Combinados/efeitos adversos , Acetato de Medroxiprogesterona/efeitos adversos , Noretindrona/análogos & derivados , Estudos de Casos e Controles , Estudos Transversais , Feminino , Humanos , Injeções Intramusculares , Acetato de Medroxiprogesterona/administração & dosagem , Noretindrona/administração & dosagem , Noretindrona/efeitos adversos , Tempo , Adulto Jovem
15.
Contraception ; 79(5): 345-9, 2009 May.
Artigo em Inglês | MEDLINE | ID: mdl-19341845

RESUMO

BACKGROUND: Depot medroxyprogesterone acetate (DMPA), norethisterone enanthate (NET-EN) and combined oral contraceptives (COCs) have been shown to have a negative effect on bone mineral density (BMD) in adolescents. The aim of this study was to investigate BMD in 15- to 19-year-old new users of DMPA, NET-EN and COCs. STUDY DESIGN: This 5-year longitudinal study followed up new users of DMPA (n=115), NET-EN (n=115) and COCs (n=116) and 144 nonuser controls. BMD was measured at the distal radius using dual-energy X-ray absorptiometry. RESULTS: BMD increased in all groups (annual percent increase: nonusers, 1.49%; DMPA, 1.39%; NET-EN, 1.03%; COCs, 0.84%) during follow-up (p<.001). There was evidence for lower BMD increases per annum in NET-EN (p=.050) and COC (p=.010) users compared to nonusers but no difference between DMPA and nonusers (p=.76). In 14 NET-EN discontinuers, an overall reduction of 0.61% per year BMD was followed upon cessation by an increase of 0.69% per year (p=.066). CONCLUSION: This study suggests that BMD increases in adolescents may be less in NET-EN and COC users; however, recovery of BMD in NET-EN users was found in the small sample of adolescents followed post-discontinuation.


Assuntos
Densidade Óssea/efeitos dos fármacos , Anticoncepcionais Orais Combinados/farmacologia , Acetato de Medroxiprogesterona/farmacologia , Noretindrona/análogos & derivados , Adolescente , Preparações de Ação Retardada , Feminino , Humanos , Noretindrona/farmacologia , Estudos Prospectivos , Adulto Jovem
16.
Contraception ; 75(6): 438-43, 2007 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-17519149

RESUMO

PURPOSE: Most studies have shown a negative effect of depot-medroxyprogesterone acetate (DMPA) on the bone mineral density (BMD) of adolescents. There is no information available on the effect of norethisterone enanthate (NET-EN) on BMD in adolescents and the effect of combined oral contraceptives (COCs) on adolescent BMD is inconclusive. The aim of this longitudinal study was to investigate BMD in adolescent (aged 15-19 years) new users of hormonal contraception (DMPA, NET-EN and COCs). METHOD: New users of DMPA (n=115), NET-EN (n=115), COCs (n=116) and 144 nonuser controls were recruited. BMD was measured at the distal radius and midshaft of the ulna using dual X-ray absorptiometry. RESULTS: In total, 275 women were included in this interim analysis and total follow-up time was 553 person-years. There was no significant difference in radius BMD between users of different contraceptive methods at baseline (p=.40). Overall, an increase in radius BMD of 0.00522 per person-year was observed. This result was similar when adjusting for BMI in the random effects regression model (p=.88). The regression model showed that BMI was significantly associated with radius BMD, with each unit increase in BMI corresponding to an increase of 0.0029 g/cm2 in BMD (95% CI 0.0023 to 0.0036, p<.001). Interaction between contraceptive method and follow-up time adjusted for BMI was not significant (p=.07). The increase in BMD for NET-EN users of 0.0013 g/cm2 per person-year (95% CI -0.0017 to 0.0043) was significantly lower than that of nonusers (p=.017). For DMPA and COC users, the increase in BMD was not significantly different compared to the nonusers. This study suggests that NET-EN users had lower increase in BMD over time compared to the other user groups.


Assuntos
Densidade Óssea/efeitos dos fármacos , Anticoncepcionais Orais Combinados/administração & dosagem , Acetato de Medroxiprogesterona/administração & dosagem , Noretindrona/análogos & derivados , Absorciometria de Fóton , Adolescente , Adulto , Preparações de Ação Retardada , Feminino , Humanos , Estudos Longitudinais , Noretindrona/administração & dosagem , Inquéritos e Questionários
17.
Soc Sci Med ; 63(8): 1998-2009, 2006 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-16814912

RESUMO

New methods are now available, and others are being developed, that could enable women to take the initiative in preventing sexually transmitted infections. However, attempts to capitalize on "female-controlled" preventive methods thus far have met with limited success. Female-initiated methods were introduced to intervene in the state of gender relations and assist women who are disempowered vis-à-vis their male partners. Paradoxically, however, we underscore that it is the very structure of regional and local gender relations that shapes the acceptability (or lack of acceptability) of these methods. This paper specifically addresses how the structure of gender relations-for better and for worse-shapes the promises and limitations of widespread use and acceptance of female-initiated methods. We draw on examples from around the world to underscore how the regional specificities of gender (in)equality shape the acceptance, negotiation, and use of these methods. Simultaneously, we demonstrate how the introduction and sustained use of methods are shaped by gender relations and offer possibilities for reinforcing or challenging their current state. Based on our analyses, we offer key policy and programmatic recommendations to increase promotion and effective use of women-initiated HIV/STI protection methods for both women and men.


Assuntos
Atitude Frente a Saúde , Preservativos Femininos , Infecções por HIV/prevenção & controle , Relações Interpessoais , Sexo Seguro , Infecções Sexualmente Transmissíveis/prevenção & controle , Saúde da Mulher , Atitude Frente a Saúde/etnologia , Feminino , Saúde Global , Infecções por HIV/etnologia , Promoção da Saúde/métodos , Humanos , Poder Psicológico , Autorrevelação , Fatores Sexuais , Infecções Sexualmente Transmissíveis/etnologia , Conformidade Social , Marketing Social , Saúde da Mulher/etnologia
18.
Contraception ; 71(3): 170-5, 2005 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-15722065

RESUMO

Most studies show that depot-medroxyprogesterone acetate (DMPA) has a negative effect on bone mass. There are conflicting reports with respect to recovery of bone mass with long-term use of DMPA. No information is available on the effect of norethisterone enanthate (NET-EN) on bone mass, and combined oral contraceptives (COCs) have not been found to be associated with loss of bone mass. The aim of this study was to investigate bone mineral density (BMD) in older women (40-49 years) in relation to use of DMPA, NET-EN and COCs for at least 12 months preceding recruitment into the study. One-hundred twenty-seven users of DMPA, 102 NET-EN users and 106 COC users were compared to 161 nonuser controls. Bone mineral density was measured at the distal radius and midshaft of the ulna using dual X-ray absorptiometry. There was no significant difference in BMD between the four contraceptive user groups (p=.26) with and without adjustment for age. Although a small decrease in BMD was noted in the age range of 40-49 years, this was not statistically significant (p=.7). The BMD was found to be significantly associated with body mass index (BMI) (por=25.8 mIU/mL was associated with a decrease of 0.017 g/cm2 in radius BMD relative to women with FSH <25.8 mIU/mL. Significant interaction between FSH and BMI in their effect on BMD was observed (p=.006). This study found no evidence that long-term use of DMPA, NET-EN and COCs affects BMD in this population.


Assuntos
Densidade Óssea/efeitos dos fármacos , Anticoncepcionais Femininos/farmacologia , Adulto , Índice de Massa Corporal , Estudos de Coortes , Anticoncepcionais Femininos/administração & dosagem , Anticoncepcionais Orais Combinados/administração & dosagem , Anticoncepcionais Orais Combinados/farmacologia , Estudos Transversais , Emprego , Exercício Físico , Feminino , Hormônio Foliculoestimulante/metabolismo , Humanos , Estado Civil , Acetato de Medroxiprogesterona/administração & dosagem , Acetato de Medroxiprogesterona/farmacologia , Pessoa de Meia-Idade , Noretindrona/administração & dosagem , Noretindrona/análogos & derivados , Noretindrona/farmacologia , África do Sul , Fatores de Tempo
19.
Contraception ; 68(5): 339-43, 2003 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-14636937

RESUMO

The objective of this study was to investigate whether follicle-stimulating hormone (FSH) levels can be used reliably to indicate approaching menopause in older (aged 40-49), long-term users of depomedroxyprogesterone acetate (DMPA) and norethisterone enanthate (NET-EN). One-hundred and seventeen women using DMPA, 60 NET-EN users and 161 nonusers of contraception were recruited. At recruitment, serum FSH levels were measured and questions were asked regarding menopausal symptoms, menstrual cycle and date of last injection. Results of the recruitment blood test showed that 32% of the nonusers had FSH levels in the menopausal range >25.8 mIU/mL compared to 28% of the DMPA users and 9% of the NET-EN group. After adjusting for age, there was no significant difference between the 3 groups (p = 0.13). An increase of 1 year in age increased the FSH level by 3 mIU/mL (p < 0.001). All the hormonal contraceptive users were between 1 day and 12 weeks of their injection interval. Many had been using the injectable contraceptive method for over 10 years and almost all were amenorrheic at the time of recruitment. The data show that a raised FSH level can be detected during use of DMPA and NET-EN and could be used as a menopausal indicator without interrupting method use in this group of contraceptive users.


Assuntos
Anticoncepcionais Orais Combinados/administração & dosagem , Hormônio Foliculoestimulante/sangue , Acetato de Medroxiprogesterona/administração & dosagem , Menopausa/sangue , Noretindrona/análogos & derivados , Noretindrona/administração & dosagem , Adulto , Biomarcadores/sangue , Estudos de Casos e Controles , Estudos de Coortes , Feminino , Humanos , Pessoa de Meia-Idade , Valor Preditivo dos Testes
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