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1.
Int J Inj Contr Saf Promot ; 31(1): 38-47, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37724445

RESUMO

Intimate partner violence (IPV) is considered a serious public health concern among couples, regardless of the sexual orientation. However, there is a dearth of data about the determining factors of IPV among couples with mixed-romantic orientations, and not much is known about the role that intra-psychic factors play in the relationship between psychological factors and IPV. Therefore, the study set out to examine the mediating role of emotional suppression in the relationship between psychological factors and IPV among couples with mixed-romantic orientations in Nigeria. The study adopted a correlational research design. A total of 241 respondents (61.4% identified as heterosexual and 38.6% as bisexual) in mixed-romantic orientation marriages, were engaged using respondents-driven sampling. Outcomes revealed that emotional suppression (indirectly) mediated the relationship between depressive symptoms [c'-path analysis; b = .029, t(240) = 108, p = <.01; bootstrap =.0573-1715], anxiety [c'-path analysis; b = .027, t(240) = -0.044, p = <.05; bootstrap = .108-.004], stress [c'-path analysis; b = 0.019, t(240) = 0.057, p = <.001; bootstrap = .0247-.0992] and IPV among couples with mixed-romantic orientations. It was concluded that emotional suppression directly and indirectly mediated the relationship between psychological factors and IPV. Recommendations and limitations are discussed.


Assuntos
Violência por Parceiro Íntimo , Humanos , Masculino , Feminino , Violência por Parceiro Íntimo/psicologia , Nigéria
2.
S Afr Med J ; 112(8b): 676-683, 2022 09 30.
Artigo em Inglês | MEDLINE | ID: mdl-36458363

RESUMO

BACKGROUND: National estimates of childhood undernutrition display uncertainty; however, it is known that stunting is the most prevalent deficiency. Child undernutrition is manifest in poor communities but is a modifiable risk factor. The intention of the study was to quantify trends in the indicators of child undernutrition to aid policymakers. OBJECTIVES: To estimate the burden of diseases attributable to stunting, wasting and underweight and their aggregate effects in South African (SA) children under the age of 5 years during 2000, 2006 and 2012. METHODS: The study applied comparative risk assessment methodology. Data sources for estimates of prevalence and population distribution of exposure in children under 5 years were the National Food Consumption surveys and the SA National Health and Nutrition Examination Survey conducted close to the target year of burden. Childhood undernutrition was estimated for stunting, wasting and underweight and their combined 'aggregate effect' using the World Health Organization (WHO) 2006 standard. Population-attributable fractions for the disease outcomes of diarrhoea, lower respiratory tract infections, measles and protein-energy malnutrition were applied to SA burden of disease estimates of deaths, years of life lost, years lived with a disability and disability-adjusted life years for 2000, 2006 and 2012. RESULTS: Among children aged under 5 years between 1999 and 2012, the distribution of anthropometric measurements <‒2 standard deviations from the WHO median showed little change for stunting (28.4% v. 26.6%), wasting (2.6% v. 2.8%) and underweight (7.6% v. 6.1%). In the same age group in 2012, attributable deaths due to wasting and aggregated burden accounted for 21.4% and 33.2% of the total deaths, respectively. Attributable death rates due to wasting and aggregate effects decreased from ~310 per 100 000 in 2006 to 185 per 100 000 in 2012. CONCLUSION: The study shows that reduction of childhood undernutrition would have a substantial impact on child mortality. We need to understand why we are not penetrating the factors related to nutrition of children that will lead to reducing levels of stunting.


Assuntos
Desnutrição , Magreza , Criança , Humanos , Pré-Escolar , Magreza/epidemiologia , África do Sul/epidemiologia , Inquéritos Nutricionais , Transtornos do Crescimento/epidemiologia , Caquexia , Efeitos Psicossociais da Doença , Desnutrição/epidemiologia
4.
S Afr Med J ; 111(10): 934-937, 2021 08 17.
Artigo em Inglês | MEDLINE | ID: mdl-34949284

RESUMO

Some clinicians prescribe ivermectin for COVID-19 despite a lack of support from any credible South African professional body. They argue that when faced by clinical urgency, weak signals of efficacy should trigger action if harm is unlikely. Several recent reviews found an apparent mortality benefit by including studies at high risk of bias and with active rather than placebo controls. If these studies are discounted, the pooled mortality effect is no longer statistically significant, and evidence of benefit is very weak. Relying on this evidence could cause clinical harm if used to justify vaccine hesitancy. Clinicians remain responsible for ensuring that guidance they follow is both legitimate and reliable. In the ivermectin debate, evidence-based medicine (EBM) principles have largely been ignored under the guise thatin a pandemic the 'rules are different', probably to the detriment of vulnerable patients and certainly to the detriment of the profession's image. Medical schools and professional interest groups are responsible for transforming EBM from a taught but seldom-used tool into a process of lifelong learning, promoting a consistent call for evidence-based and unconflicted debate integral to clinical practice.


Assuntos
Tratamento Farmacológico da COVID-19 , Ivermectina/administração & dosagem , Padrões de Prática Médica/normas , Hesitação Vacinal/psicologia , Vacinas contra COVID-19/administração & dosagem , Medicina Baseada em Evidências/normas , Humanos , Ivermectina/efeitos adversos , Projetos de Pesquisa , África do Sul
6.
Artigo em Inglês | MEDLINE | ID: mdl-34734176

RESUMO

SUMMARY: Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is transmitted mainly by aerosol in particles <10 µm that can remain suspended for hours before being inhaled. Because particulate filtering facepiece respirators ('respirators'; e.g. N95 masks) are more effective than surgical masks against bio-aerosols, many international organisations now recommend that health workers (HWs) wear a respirator when caring for individuals who may have COVID-19. In South Africa (SA), however, surgical masks are still recommended for the routine care of individuals with possible or confirmed COVID-19, with respirators reserved for so-called aerosol-generating procedures. In contrast, SA guidelines do recommend respirators for routine care of individuals with possible or confirmed tuberculosis (TB), which is also transmitted via aerosol. In health facilities in SA, distinguishing between TB and COVID-19 is challenging without examination and investigation, both of which may expose HWs to potentially infectious individuals. Symptom-based triage has limited utility in defining risk. Indeed, significant proportions of individuals with COVID-19 and/or pulmonary TB may not have symptoms and/or test negative. The prevalence of undiagnosed respiratory disease is therefore likely significant in many general clinical areas (e.g. waiting areas). Moreover, a proportion of HWs are HIV-positive and are at increased risk of severe COVID-19 and death. RECOMMENDATIONS: Sustained improvements in infection prevention and control (IPC) require reorganisation of systems to prioritise HW and patient safety. While this will take time, it is unacceptable to leave HWs exposed until such changes are made. We propose that the SA health system adopts a target of 'zero harm', aiming to eliminate transmission of respiratory pathogens to all individuals in every healthcare setting. Accordingly, we recommend: the use of respirators by all staff (clinical and non-clinical) during activities that involve contact or sharing air in indoor spaces with individuals who: (i) have not yet been clinically evaluated; or (ii) are thought or known to have TB and/or COVID-19 or other potentially harmful respiratory infections;the use of respirators that meet national and international manufacturing standards;evaluation of all respirators, at the least, by qualitative fit testing; andthe use of respirators as part of a 'package of care' in line with international IPC recommendations. We recognise that this will be challenging, not least due to global and national shortages of personal protective equipment (PPE). SA national policy around respiratory protective equipment enables a robust framework for manufacture and quality control and has been supported by local manufacturers and the Department of Trade, Industry and Competition. Respirator manufacturers should explore adaptations to improve comfort and reduce barriers to communication. Structural changes are needed urgently to improve the safety of health facilities: persistent advocacy and research around potential systems change remain essential.

7.
S Afr Med J ; 111(7): 623-626, 2021 Jun 30.
Artigo em Inglês | MEDLINE | ID: mdl-34382544

RESUMO

A 33-year-old woman on chronic immunosuppressive treatment for rheumatoid arthritis with a history of inhaled methamphetamine use presented with respiratory failure requiring mechanical ventilation for a prolonged period. After being given plasma exchange, pulses of methylprednisolone and a dose of cyclosporine for suspected ANCA (anti-neutrophilic cytoplasmic autoantibodies) vasculitis, she developed an obstructive supraglottic laryngeal mass that required a tracheostomy to bypass. Biopsy findings revealed the mass to be an inflammatory pseudomass secondary to cytomegalovirus (CMV). The mass resolved after several weeks of intravenous ganciclovir therapy. This is an extremely unusual presentation of localised CMV disease, with only two or three similar cases having been reported worldwide.


Assuntos
Infecções por Citomegalovirus/etiologia , Epiglote , Imunossupressores/efeitos adversos , Doenças da Laringe/etiologia , Adulto , Vasculite Associada a Anticorpo Anticitoplasma de Neutrófilos/tratamento farmacológico , Antivirais/uso terapêutico , Artrite Reumatoide/tratamento farmacológico , Ciclosporina/efeitos adversos , Ciclosporina/uso terapêutico , Infecções por Citomegalovirus/diagnóstico , Infecções por Citomegalovirus/tratamento farmacológico , Infecções por Citomegalovirus/patologia , Epiglote/patologia , Epiglote/virologia , Feminino , Ganciclovir/uso terapêutico , Humanos , Imunossupressores/uso terapêutico , Doenças da Laringe/diagnóstico , Doenças da Laringe/tratamento farmacológico , Doenças da Laringe/virologia , Metilprednisolona/efeitos adversos , Metilprednisolona/uso terapêutico
8.
S Afr Med J ; 111(6): 515-516, 2021 04 09.
Artigo em Inglês | MEDLINE | ID: mdl-34382555

RESUMO

Letter by Venter et al. on editorial  by Schoub (Dial down the rhetoric over COVID-19 vaccines. S Afr Med J 2021;111(6):522-523. https://doi.org/10.7196/SAMJ.2021.v111i6.15740).


Assuntos
Vacinas contra COVID-19 , COVID-19 , Humanos , SARS-CoV-2 , África do Sul
10.
S Afr Med J ; 110(8): 700-703, 2020 06 05.
Artigo em Inglês | MEDLINE | ID: mdl-32880283

RESUMO

Letter by Gopalan et al. on article by Singh and Moodley (Singh JA, Moodley K. Critical care triaging in the shadow of COVID-19: Ethics considerations. S Afr Med J 2020;110(5):355-359. https://doi.org/10.7196/SAMJ.2020.v110i5.14778); and response by Singh and Moodley.


Assuntos
Infecções por Coronavirus , Cuidados Críticos , Pandemias , Pneumonia Viral , Saúde Pública , África Austral , Betacoronavirus , COVID-19 , Humanos , Alocação de Recursos , SARS-CoV-2 , África do Sul
12.
Artigo em Inglês | MEDLINE | ID: mdl-34240017

RESUMO

Diffuse pulmonary meningotheliomatosis is a rare condition of the lung that presents with nonspecific respiratory symptoms, and usually follows a benign course. It should, however, be considered in the differential diagnosis of a miliary pattern on chest-imaging studies, as illustrated in the case reported.

14.
S Afr Med J ; 110(11): 1077-1080, 2020 09 29.
Artigo em Inglês | MEDLINE | ID: mdl-33403981

RESUMO

The COVID-19 pandemic requires urgent decisions regarding treatment policy in the face of rapidly evolving evidence. In response, the South African Essential Medicines List Committee established a subcommittee to systematically review and appraise emerging evidence, within very short timelines, in order to inform the National Department of Health COVID-19 treatment guidelines. To date, the subcommittee has reviewed 14 potential treatments, and made recommendations based on local context, feasibility, resource requirements and equity. Here we describe the rapid review and evidence-to-decision process, using remdesivir and dexamethasone as examples. Our experience is that conducting rapid reviews is a practical and efficient way to address medicine policy questions under pandemic conditions.


Assuntos
Monofosfato de Adenosina/análogos & derivados , Alanina/análogos & derivados , Antivirais/uso terapêutico , Tratamento Farmacológico da COVID-19 , Dexametasona/uso terapêutico , Medicamentos Essenciais , Glucocorticoides/uso terapêutico , Formulação de Políticas , Guias de Prática Clínica como Assunto , Monofosfato de Adenosina/uso terapêutico , Alanina/uso terapêutico , Tomada de Decisões , Medicina Baseada em Evidências , Humanos , SARS-CoV-2 , Índice de Gravidade de Doença , África do Sul , Fatores de Tempo
15.
S Afr Med J ; 111(1): 10-12, 2020 11 23.
Artigo em Inglês | MEDLINE | ID: mdl-33403997

RESUMO

Persistence of symptoms or development of new symptoms relating to SARS-CoV-2 infection late in the course of COVID-19 is an increasingly recognised problem facing the globally infected population and its health systems. 'Long-COVID' or 'COVID long-haulers' generally describes those persons with COVID-19 who experience symptoms for >28 days after diagnosis, whether laboratory confirmed or clinical. Symptoms are as markedly heterogeneous as seen in acute COVID-19 and may be constant, fluctuate, or appear and be replaced by symptoms relating to other systems with varying frequency. Such multisystem involvement requires a holistic approach to management of long-COVID, and descriptions of cohorts from low- and middle-income countries are eagerly awaited. Although many persons with long-COVID will be managed in primary care, others will require greater input from rehabilitation medicine experts. For both eventualities, planning is urgently required to ensure that the South African public health service is ready and able to respond.


Assuntos
COVID-19/complicações , Planejamento em Saúde , Medicina Física e Reabilitação , Atenção Primária à Saúde , Fatores Etários , Anosmia/fisiopatologia , COVID-19/epidemiologia , COVID-19/fisiopatologia , COVID-19/terapia , Disfunção Cognitiva/fisiopatologia , Comorbidade , Dispneia/fisiopatologia , Fadiga/fisiopatologia , Cefaleia/fisiopatologia , Humanos , Obesidade/epidemiologia , Recuperação de Função Fisiológica , Medição de Risco , SARS-CoV-2 , Índice de Gravidade de Doença , Fatores Sexuais , África do Sul , Fatores de Tempo , Síndrome de COVID-19 Pós-Aguda
16.
S Afr Med J ; 109(8b): 40-45, 2019 Sep 10.
Artigo em Inglês | MEDLINE | ID: mdl-31662148

RESUMO

Human immunodeficiency virus (HIV) infection not only leads to a compromised immune system, but also disrupts normal haematopoiesis, resulting in the frequent manifestation of cytopenias (anaemia, thrombocytopenia and neutropenia). Although there is a definite association between the severity of cytopenia and HIV disease stage, this relationship is not always linear. For example, cytopenias such as thrombocytopenia may occur during early stages of infection. The aetiology of these haematological abnormalities is complex and multifactorial, including drug-induced impaired haematopoiesis, bone marrow suppression due to infiltration of infectious agents or malignant cells, HIV-induced impaired haematopoiesis, and several other factors. In this review, we describe the frequencies of anaemia, thrombocytopenia and neutropenia reported for HIV-infected, treatment-naïve cohorts studied in eastern and southern sub-Saharan African countries. We present a rational approach for the use of diagnostic tests during the workup of HIV-infected patients presenting with cytopenia, and discuss how HIV impacts on haematopoietic stem/progenitor cells (HSPCs) resulting in impaired haematopoiesis. Finally, we describe the direct and indirect effects of HIV on HSPCs which result in defective haematopoiesis leading to cytopenias.


Assuntos
Infecções por HIV/complicações , Hematopoese , Anemia/diagnóstico , Anemia/etiologia , Células-Tronco Hematopoéticas/citologia , Humanos , Neutropenia/diagnóstico , Neutropenia/etiologia , Células-Tronco/citologia , Trombocitopenia/diagnóstico , Trombocitopenia/etiologia
17.
Int J Lab Hematol ; 40(4): 453-458, 2018 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-29665288

RESUMO

INTRODUCTION: To determine whether the current set of evaluation criteria used for dilute Russel Viper Venom Time (dRVVT) investigations in the routine laboratory meet expectation and identify possible shortcomings. METHODS: All dRVVT assays requested from January 2015 to December 2015 were appraised in this cross-sectional study. The raw data panels were compared with the new reference interval, established in 2016, to determine the sequence of assays that should have been performed. The interpretive comments were audited, and false-negative reports identified. Interpretive comments according to three interpretation guidelines were compared. The reagent cost per assay was determined, and reagent cost wastage, due to redundant tests, was calculated. RESULTS: Only ~9% of dRVVT results authorized during 2015 had an interpretive comment included in the report. ~15% of these results were false-negative interpretations. There is a significant statistical difference in interpretive comments between the three interpretation methods. Redundant mixing tests resulted in R 7477.91 (~11%) reagent cost wastage in 2015. CONCLUSIONS: We managed to demonstrate very evident deficiencies in our own practice and managed to establish a standardized workflow that will potentially render our service more efficient and cost effective, aiding clinicians in making improved treatment decisions and diagnoses. Furthermore, it is essential that standard operating procedures be kept up to date and executed by all staff in the laboratory.


Assuntos
Hematologia/métodos , Tempo de Protrombina/normas , Testes de Coagulação Sanguínea , Estudos Transversais , Reações Falso-Negativas , Humanos , Guias de Prática Clínica como Assunto , Tempo de Protrombina/economia , Fluxo de Trabalho
18.
Emerg Adulthood ; 6(1): 7-16, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-29568698

RESUMO

Intergroup relation perspectives stem from research in Western contexts with clear distinctions between the dominant and nondominant groups. In South Africa, with at least 13 different cultural groups and 11 official languages, no group is dominant in all life spheres. We examine the relationship between identity and in-/out-group orientation across Black-Zulu, Coloured (mixed racial ancestry), Indian, and White-Afrikaans emerging adults (N = 390; 75% females, Mage = 19.97 years, SD = 2.44). Results indicate that personal identity for all groups and ethnic identity for Black-Zulu, Indian, and White-Afrikaans emerging adults were important for intergroup relations. Black-Zulu, Coloured, and Indian emerging adults distinguish themselves less from others, whereas White-Afrikaans emerging adults are less open to others. Ultimately, the complexity of intergroup relations in South Africa has implications for the effective transformation interventions needed to counter experiences of threat and make group boundaries more flexible for emerging adults.

19.
J Pers Soc Psychol ; 114(3): 465-481, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28095007

RESUMO

The cross-cultural universality of behavior's consistency and predictability from personality, assumed in trait models though challenged in cultural psychological models, has usually been operationalized in terms of beliefs and perceptions, and assessed using single-instance self-reports. In a multimethod study of actual behavior across a range of situations, we examined predictability and consistency in participants from the more collectivistic Black ethnic group and the more individualistic White group in South Africa. Participants completed personality questionnaires before the behavior measurements. In Study 1, 107 Black and 241 White students kept diaries for 21 days, recording their behaviors and the situations in which they had occurred. In Study 2, 57 Black and 52 White students were video-recorded in 12 situations in laboratory settings, and external observers scored their behaviors. Across both studies, behavior was predicted by personality on average equally well in the 2 groups, and equally well when using trait-adjective- and behavior-based personality measures. The few cultural differences in situational variability were not in line with individualism-collectivism; however, subjective perceptions of variability, operationalized as dialectical beliefs, were more in line with individualism-collectivism: Blacks viewed their behavior as more variable than Whites. We propose drawing a distinction between subjective beliefs and objective behavior in the study of personality and culture. Larger cultural differences can be expected in beliefs and perceptions than in the links between personality and actual behavior. (PsycINFO Database Record


Assuntos
População Negra/etnologia , Comparação Transcultural , Personalidade , Comportamento Social , População Branca/etnologia , Adulto , Feminino , Humanos , Masculino , África do Sul/etnologia , Adulto Jovem
20.
J Pers ; 86(6): 935-951, 2018 12.
Artigo em Inglês | MEDLINE | ID: mdl-29244190

RESUMO

OBJECTIVE: Despite the importance of self-other agreement for the validity of trait models, few studies have assessed cultural differences systematically. We examined self-other agreement in traits and profiles in the more collectivistic Black group and the more individualistic White group in South Africa. METHOD: Participants were 172 Black and 198 White students, and one relative and one friend of each student. Participants completed a behavior-based and a trait-adjective-based inventory. RESULTS: Aggregated across traits and raters, there were no cultural differences in trait agreement. However, agreement was stronger for social-relational concepts in Blacks and for personal growth concepts in Whites, providing moderate support for the hypothesis of stronger agreement on culturally more salient traits. Trait agreement was stronger in Blacks' relatives and Whites' friends, but there was no such interaction in profile agreement. The differences in profile agreement (higher in Whites than in Blacks) involved normative agreement and were mediated by dialecticism (higher in Blacks) and social desirability (higher in Whites). Results with the two inventories were similar. CONCLUSIONS: In the framework of trait consistency research, cultural differences in self-other agreement may be limited compared to differences in perceived trait consistency, although sizable compared to differences in actual behavior consistency.


Assuntos
População Negra/etnologia , Comparação Transcultural , Relações Interpessoais , Personalidade , População Branca/etnologia , Adulto , Feminino , Humanos , Masculino , África do Sul/etnologia , Adulto Jovem
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