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1.
Epidemiol Psychiatr Sci ; 32: e46, 2023 Jul 12.
Artículo en Inglés | MEDLINE | ID: mdl-37434513

RESUMEN

AIMS: Preventing the occurrence of depression/anxiety and suicide during adolescence can lead to substantive health gains over the course of an individual person's life. This study set out to identify the expected population-level costs and health impacts of implementing universal and indicated school-based socio-emotional learning (SEL) programs in different country contexts. METHODS: A Markov model was developed to examine the effectiveness of delivering universal and indicated school-based SEL programs to prevent the onset of depression/anxiety and suicide deaths among adolescents. Intervention health impacts were measured in healthy life years gained (HLYGs) over a 100-year time horizon. Country-specific intervention costs were calculated and denominated in 2017 international dollars (2017 I$) under a health systems perspective. Cost-effectiveness findings were subsequently expressed in terms of I$ per HLYG. Analyses were conducted on a group of 20 countries from different regions and income levels, with final results aggregated and presented by country income group - that is, low and lower middle income countries (LLMICs) and upper middle and high-income countries (UMHICs). Uncertainty and sensitivity analyses were conducted to test model assumptions. RESULTS: Implementation costs ranged from an annual per capita investment of I$0.10 in LLMICs to I$0.16 in UMHICs for the universal SEL program and I$0.06 in LLMICs to I$0.09 in UMHICs for the indicated SEL program. The universal SEL program generated 100 HLYGs per 1 million population compared to 5 for the indicated SEL program in LLMICs. The cost per HLYG was I$958 in LLMICS and I$2,006 in UMHICs for the universal SEL program and I$11,123 in LLMICs and I$18,473 in UMHICs for the indicated SEL program. Cost-effectiveness findings were highly sensitive to variations around input parameter values involving the intervention effect sizes and the disability weight used to estimate HLYGs. CONCLUSIONS: The results of this analysis suggest that universal and indicated SEL programs require a low level of investment (in the range of I$0.05 to I$0.20 per head of population) but that universal SEL programs produce significantly greater health benefits at a population level and therefore better value for money (e.g., less than I$1,000 per HLYG in LLMICs). Despite producing fewer population-level health benefits, the implementation of indicated SEL programs may be justified as a means of reducing population inequalities that affect high-risk populations who would benefit from a more tailored intervention approach.


Asunto(s)
Análisis de Costo-Efectividad , Suicidio , Humanos , Adolescente , Depresión/prevención & control , Ansiedad , Trastornos de Ansiedad
2.
J Phys Chem A ; 122(48): 9338-9349, 2018 Dec 06.
Artículo en Inglés | MEDLINE | ID: mdl-30415549

RESUMEN

This paper provides experimental evidence for the chemical structures of aliphatically substituted and bridged polycyclic aromatic hydrocarbon (PAH) species in gas-physe combustion environments. The identification of these single- and multicore aromatic species, which have been hypothesized to be important in PAH growth and soot nucleation, was made possible through a combination of sampling gaseous constituents from an atmospheric pressure inverse coflow diffusion flame of ethylene and high-resolution tandem mass spectrometry (MS-MS). In these experiments, the flame-sampled components were ionized using a continuous VUV lamp at 10.0 eV and the ions were subsequently fragmented through collisions with Ar atoms in a collision-induced dissociation (CID) process. The resulting fragment ions, which were separated using a reflectron time-of-flight mass spectrometer, were used to extract structural information about the sampled aromatic compounds. The high-resolution mass spectra revealed the presence of alkylated single-core aromatic compounds and the fragment ions that were observed correspond to the loss of saturated and unsaturated units containing up to a total of 6 carbon atoms. Furthermore, the aromatic structures that form the foundational building blocks of the larger PAHs were identified to be smaller single-ring and pericondensed aromatic species with repetitive structural features. For demonstrative purposes, details are provided for the CID of molecular ions at masses 202 and 434. Insights into the role of the aliphatically substituted and bridged aromatics in the reaction network of PAH growth chemistry were obtained from spatially resolved measurements of the flame. The experimental results are consistent with a growth mechanism in which alkylated aromatics are oxidized to form pericondensed ring structures or react and recombine with other aromatics to form larger, potentially three-dimensional, aliphatically bridged multicore aromatic hydrocarbons.

3.
Child Care Health Dev ; 44(1): 89-98, 2018 01.
Artículo en Inglés | MEDLINE | ID: mdl-29047149

RESUMEN

BACKGROUND: Child development is negatively impacted by HIV with children that are infected and affected by HIV performing worse than their peers in cognitive assessments. METHODS: We conducted a descriptive follow-up comparison study (n=989) in South Africa and Malawi. We tracked child development in 135 HIV-positive children compared to 854 uninfected children aged 4-13 years attending community-based organizations at baseline and again 12-15 months later. RESULTS: Children with HIV were more often stunted (58.8% vs. 27.4%) and underweight (18.7% vs. 7.1%). They also had significantly poorer general physical functioning (M=93.37 vs. M=97.00). HIV-positive children scored significantly lower on digit span and the draw-a-person task. CONCLUSIONS: These data clearly show that HIV infection poses a serious risk for child development and that there is a need for scaled up interventions. Community-based services may be ideally placed to accommodate such provision and deliver urgently needed support to these children.


Asunto(s)
Servicios de Salud del Niño , Disfunción Cognitiva/complicaciones , Disfunción Cognitiva/fisiopatología , Discapacidades del Desarrollo/complicaciones , Trastornos del Crecimiento/complicaciones , Trastornos del Crecimiento/fisiopatología , Infecciones por VIH/complicaciones , Fármacos Anti-VIH/uso terapéutico , Niño , Desarrollo Infantil , Servicios de Salud del Niño/organización & administración , Preescolar , Disfunción Cognitiva/rehabilitación , Disfunción Cognitiva/virología , Discapacidades del Desarrollo/epidemiología , Discapacidades del Desarrollo/fisiopatología , Discapacidades del Desarrollo/rehabilitación , Femenino , Estudios de Seguimiento , Trastornos del Crecimiento/virología , Infecciones por VIH/epidemiología , Infecciones por VIH/fisiopatología , Infecciones por VIH/rehabilitación , Necesidades y Demandas de Servicios de Salud , Humanos , Malaui/epidemiología , Masculino , Calidad de Vida , Factores Socioeconómicos , Sudáfrica/epidemiología , Delgadez/epidemiología , Delgadez/fisiopatología , Delgadez/virología
4.
Vulnerable Child Youth Stud ; 12(2): 91-116, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-29085436

RESUMEN

In addition to its contribution to child mortality, HIV/AIDS has a substantial impact on the psychosocial well-being of children across the globe and particularly in sub-Saharan Africa. We conducted a systematic review of the literature in order to identify studies that assess the effectiveness of interventions developed to improve the psychosocial well-being of children affected by HIV/AIDS, published between January 2008 and February 2016. Studies that were eligible for the review included male and/or female children under the age of 18 years of age, who had lost a parent to HIV/AIDS, were living with a parent with HIV/AIDS, or were vulnerable because of other social and economic factors and living in communities of high HIV and AIDS prevalence, including child and caregiver reports. Studies were included if they documented any intervention to improve the psychosocial well-being of children including psychological therapy, psychosocial support and/or care, medical interventions and social interventions, with psychological and/or social factors as outcomes. We identified 17 interventions to improve the psychosocial well-being of children affected by HIV/AIDS. Of these, 16 studies took place in eight different low and middle-income countries (LMIC), of which 6 were in southern and eastern Africa. One study took place in a high-income setting. Of the total, fifteen showed some significant benefits of the intervention, while two showed no difference to psychosocial outcomes as a result of the intervention. The content of interventions, dosage and length of follow up varied substantially between studies. There were few studies on children under seven years and several focused mostly on girls. Efforts to improve evaluation of interventions to improve the psychosocial well-being of children affected by HIV/AIDS have resulted in a number of new studies which met the inclusion criteria for the review. Most studies are specially designed research projects and not evaluations of existing services. We call for increased partnerships between policy-makers, practitioners and researchers in order to design evaluation studies and can feed into the growing evidence base.

5.
Health Psychol Behav Med ; 5(1): 145-165, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-30221074

RESUMEN

BACKGROUND: Parenting quality is important in child development. In the presence of HIV poverty and life stress, parenting may be challenged and child development affected. METHODS: This study examines cross-sectional associations of situational factors such as poverty, mental health, HIV status, living with a biological parent, and stigma with good parenting and child outcomes (n=989; age=4-13 years) within the Child Community Care study (South Africa and Malawi). A parenting measure was created from 10 variables comprising 6 child and 4 parent ratings. These were highly correlated. Total parenting score was generated on a 10 point continuous scale, with a good parenting cut off then defined as >=8 out of a possible 10. RESULTS: Five factors were associated with good parenting. Positively associated with good parenting were being the biological parent of the child, parental mental health and dwelling in households with multiple adults. Poverty and stigma were negatively associated with good parenting. Using multiple mediation analysis, a positive direct effect of good parenting was found on child self-esteem, child behaviour and educational risks with a partial mediation via child depression and trauma. CONCLUSIONS: These data highlight possible intervention points. Influences on parenting could be seen through being the biological parent, parental mental health, poverty and stigma. In these challenging environments, health, nutrition, mental health, education, and treatment to keep parents alive are all clearly identified as potential pathways to ensure child well-being.

6.
Child Youth Serv Rev ; 62: 58-64, 2016 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-27867244

RESUMEN

Community-based organisations (CBOs) have the potential to provide high quality services for orphaned and vulnerable children in resource-limited settings. However, evidence is lacking as to whether CBOs are reaching those who are most vulnerable, whether attending these organisations is associated with greater psychosocial wellbeing, and how they might work. This study addressed these three questions using cross-sectional data from 1848 South African children aged 9-13. Data were obtained from the Young Carers and Child Community Care studies, which both investigated child wellbeing in South Africa using standardised self-report measures. Children from the Child Community Care study were all CBO attenders, whereas children from Young Carers were not receiving any CBO services, thereby serving as a comparison group. Multivariable regression analyses were used to test whether children attending CBOs were more deprived on socio-demographic variables (e.g., housing), and whether CBO attendance was in turn associated with better psychosocial outcomes (e.g., child depression). Mediation analysis was conducted to test whether more positive home environments mediated the association between CBO attendance and significantly higher psychological wellbeing. Overall, children attending CBOs did show greater vulnerability on most socio-demographic variables. For example, compared to children not attending any CBO, CBO-attending children tended to live in more crowded households (OR 1.22) and have been exposed to more community violence (OR 2.06). Despite their heightened vulnerability, however, children attending CBOs tended to perform better on psychosocial measures: for instance, showing fewer depressive symptoms (B=-0.33) and lower odds of experiencing physical (OR 0.07) or emotional abuse (OR 0.22). Indirect effects of CBO attendance on significantly higher child psychological wellbeing (lower depressive symptoms) was observed via lower rates of child abuse (B=-0.07) and domestic conflict/violence (B=-0.03) and higher rates of parental praise (B=-0.03). Null associations were observed between CBO attendance and severe psychopathology (e.g., suicidality). These cross-sectional results provide promising evidence regarding the potential success of CBO reach and impact but also highlight areas for improvement.

7.
Child Care Health Dev ; 42(6): 890-899, 2016 11.
Artículo en Inglés | MEDLINE | ID: mdl-27514630

RESUMEN

OBJECTIVE: Many studies that document child outcomes in the context of parental HIV - which has been established as a risk factor for child development - focus on older children/adolescents. Studies also concentrate on the status of the primary caregiver, not other household members who might be infected. DESIGN: This study examined the effects of caregiver and household HIV on child development (4-13 years) in South Africa and Malawi (2011-2014). METHODS: Data were gathered from 989 children and their primary caregivers at baseline and repeated at 12-15 months follow-up (86.5% follow-up rate). Only caregivers of a single child and caregiver/child dyads without missing data were included, providing a sample of 808 dyads for analysis. Children were divided into three groups according to caregiver-reported HIV burden: having an HIV-positive primary caregiver (19.8%), having HIV in the household (14.2%) or no HIV (66%). RESULTS: The HIV burden was positively associated with an array of negative child outcomes, often mediated by caregiver depression levels. Family HIV burden at baseline affected child behavioural problems at follow-up indirectly through carer depression (B = 0.02; CI = 0.003, 0.06). Internalizing (B = 0.02; CI = 0.002, 0.05) and externalizing problems at follow-up (B = 0.01; CI = 0.0002, 0.03) were also indirectly affected by family HIV burden through caregiver depression. CONCLUSIONS: The data suggest that family HIV can affect child development, emphasizing the important role of depression in the pathway to such an effect. Community-based interventions directed at alleviating parental depression in the presence of HIV may help to interrupt the cycle of family HIV and adverse child outcomes.


Asunto(s)
Cuidadores/estadística & datos numéricos , Trastornos de la Conducta Infantil/etiología , Hijo de Padres Discapacitados/psicología , Salud de la Familia/estadística & datos numéricos , Infecciones por VIH/psicología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Cuidadores/psicología , Niño , Trastornos de la Conducta Infantil/epidemiología , Desarrollo Infantil , Preescolar , Depresión/epidemiología , Depresión/etiología , Femenino , Infecciones por VIH/epidemiología , Accesibilidad a los Servicios de Salud/estadística & datos numéricos , Humanos , Estudios Longitudinales , Malaui/epidemiología , Masculino , Persona de Mediana Edad , Calidad de Vida , Factores Socioeconómicos , Sudáfrica/epidemiología , Adulto Joven
8.
AIDS Care ; 28 Suppl 2: 100-9, 2016 03.
Artículo en Inglés | MEDLINE | ID: mdl-27392005

RESUMEN

Gender is an important factor in child development. Especially in sub-Saharan Africa, girls have often been shown to be less likely to access education compared to boys. The consequence of this has been that that programmes addressing child development are often aimed at girls in order to redress gender imbalances. This study examines the effect of gender on the development of children attending community-based organisations in high HIV-affected areas, and explores whether community-based organisation attendance was associated with any changes in gender differences over time. Baseline data from 989 children and 12-15 month follow from 854 (86% response rate) were used to examine gender differences in children from Malawi and South Africa. At baseline, where there were differences by gender, these tended to disadvantage boys. It was found that boys were significantly more often found to be subjected to violence. Boys showed worse performance at school and more behavioural problems than girls. These gender differences persisted from baseline to follow-up. At follow-up, boys self-reported significantly worse average quality of life than girls. Only harsh discipline differed by gender in progression over time: boys experienced a stronger reduction in harsh physical discipline than girls from baseline to follow-up. Since harsh discipline was associated with boys' worse educational outcomes and behavioural problems, our data cautiously suggests that gender differences could be reduced over time. In conclusion, our data suggests that, perhaps due to the narrow equity approach focusing on provision for girls, boys may be overlooked. As a result, there are some specific experiences where boys are generally worse off. These differences have distinct ramifications for the educational and emotional development of boys. A broader equity approach to child development might be warranted to ensure that the needs of both girls and boys are considered, and that boys are not overlooked.


Asunto(s)
Identidad de Género , Infecciones por VIH/psicología , Calidad de Vida , Niño , Investigación Participativa Basada en la Comunidad , Femenino , Humanos , Estudios Longitudinales , Malaui/epidemiología , Masculino , Instituciones Académicas , Sudáfrica/epidemiología , Violencia/prevención & control
9.
AIDS Care ; 28 Suppl 1: 16-25, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27002770

RESUMEN

Many of the risk factors for violence against children are particularly prevalent in families and communities affected by HIV/AIDS. Yet, in sub-Saharan Africa, where HIV rates are high, efforts to prevent or address violence against children and its long-lasting effects are hampered by a lack of evidence. We assessed the relationship between violence exposure and mental health among HIV-affected children attending community-based organisations in South Africa (n = 834) and Malawi (n = 155, total sample n = 989) at baseline and 12-15-month follow-up. Exposure to violence in the home and in the community was high. HIV-negative children who lived with an HIV-positive person experienced most violence overall, followed by HIV-positive children. Children unaffected by HIV experienced least violence (all p < .05). Interpersonal violence in the home predicted child depression (ß = 0.17, p < .001), trauma symptoms (ß = 0.17, p < .001), lower self-esteem (ß = -0.17, p < .001), and internalising and externalising behavioural problems (ß = 0.07, p < .05), while exposure to community violence predicted trauma symptoms (ß = 0.16, p < .001) and behavioural problems (ß = 0.07, p < .05). Harsh physical discipline predicted lower self-esteem (ß = -0.18, p < .001) and behavioural problems for children (ß = 0.24, p < .001). Exposure to home (OR: 1.89, 95% CI: 1.23-2.85) and community violence predicted risk behaviour (OR: 2.39, 95% CI: 1.57-3.62). Over time, there was a decrease in depressed mood and problem behaviours, and an increase in self-esteem for children experiencing different types of violence at baseline. This may have been due to ongoing participation in the community-based programme. These data highlight the burden of violence in these communities and possibilities for programmes to include violence prevention to improve psychosocial well-being in HIV-affected children.


Asunto(s)
Exposición a la Violencia/psicología , Infecciones por VIH/psicología , Violencia , Niño , Preescolar , Investigación Participativa Basada en la Comunidad , Estudios Transversales , Depresión/epidemiología , Trastorno Depresivo/epidemiología , Exposición a la Violencia/estadística & datos numéricos , Femenino , Humanos , Modelos Logísticos , Estudios Longitudinales , Malaui/epidemiología , Masculino , Salud Mental , Factores de Riesgo , Asunción de Riesgos , Sudáfrica/epidemiología
10.
Int Health ; 8(1): 36-43, 2016 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-26678567

RESUMEN

BACKGROUND: Violence during childhood may affect short and long-term educational factors. There is scant literature on younger children from resource poor settings. METHODS: This study assessed child violence experiences (harsh punishment and exposure to domestic or community violence) and school enrolment, progress and attendance in children attending community-based organisations in South Africa and Malawi (n=989) at baseline and at 15 months' follow-up, examining differential experience of HIV positive, HIV affected and HIV unaffected children. RESULTS: Violence exposure was high: 45.4% experienced some form of psychological violence, 47.8% physical violence, 46.7% domestic violence and 41.8% community violence. Primary school enrolment was 96%. Violence was not associated with school enrolment at baseline but, controlling for baseline, children exposed to psychological violence for discipline were more than ten times less likely to be enrolled at follow-up (OR 0.09; 95% CI 0.01 to 0.57). Harsh discipline was associated with poor school progress. For children HIV positive a detrimental effect of harsh physical discipline was found on school performance (OR 0.10; 95% CI 0.02 to 0.61). CONCLUSION: Violence experiences were associated with a number of educational outcomes, which may have long-term consequences. Community-based organisations may be well placed to address such violence, with a particular emphasis on the challenges faced by children who are HIV positive.


Asunto(s)
Exposición a la Violencia/psicología , Exposición a la Violencia/estadística & datos numéricos , Estudiantes/psicología , Estudiantes/estadística & datos numéricos , Adolescente , Niño , Preescolar , Escolaridad , Femenino , Humanos , Malaui , Masculino , Sudáfrica
11.
Artículo en Inglés | MEDLINE | ID: mdl-28596880

RESUMEN

INTRODUCTION: Strengthening of mental health information systems (MHIS) is essential to monitor and evaluate mental health services in low and middle-income countries. While research exists assessing wider health management information systems, there is limited published evidence exploring the design and implementation of MHIS in these settings. This paper aims to identify and assess the key factors affecting the design and implementation of MHIS, as perceived by the key stakeholders in Ghana and South Africa. METHODS: We report findings from the Mental Health and Poverty Project, a 5-year research programme implemented within four African countries. The MHIS strengthening in South Africa and Ghana included two related components: intervention and research. The intervention component aimed to strengthen MHIS in the two countries, and the research component aimed to document interventions in each country, including the key influences. Data were collected using semi structured interviews with key stakeholders and reviews of key documents and secondary data from the improved MHIS. We analyzed the qualitative data using a framework approach. RESULTS: Key components of the MHIS intervention involved the introduction of a redesigned patient registration form, entry into computers for analysis every 2 months by clinical managerial staff, and utilization of data in hospital management meetings in three psychiatric hospitals in Ghana; and the introduction of a new set of mental health indicators and related forms and tally sheets at primary care clinics and district hospitals in five districts in the KwaZulu-Natal and Northern Cape provinces in South Africa. Overall, the key stakeholders perceived the MHIS strengthening as an effective intervention in both countries with an enhanced set of indicators in South Africa and introduction of a computerized system in Ghana. DISCUSSION: Influences on the design and implementation of MHIS interventions in Ghana and South Africa relate to resources, working approaches (including degree of consultations during the design stage and communication during implementation stage) and the low priority of mental health. Although the influencing factors represent similar categories, more influences were identified on MHIS implementation, compared with the design stage. Different influences appear to be related within, and across, the MHIS design and implementation and may reinforce or negate each other thus leading to the multiplier or minimization effects. The wider context, similar to other studies, is important in ensuring the success of such interventions. CONCLUSION: Future MHIS strengthening interventions can consider three policy implications which emerged from our analysis and experience: enhancing consultations during the intervention design, better consideration of implementation challenges during design, and better recognition of relations between different influences.

12.
Afr J Psychiatry (Johannesbg) ; 15(6): 397-400, 2012 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-23379015

RESUMEN

Mental health is an essential component of health, yet it is often not given the attention that ir deserves as a global health and development issue. In this paper, we examine the global health context, including the substantial burden of disease, resources available for mental health, treatment gap, human rights issues, links between mental health and development, and economic impact of mental disorders. Then we consider recent actions taken at the global level to advance mental health as a global health issue. Finally, we look at South Africa as an example of a country that is ripe for change in its approach to mental health. This is a country with a high prevalence of mental disorders and a large treatment gap, yet it has a number of strengths on which to build a response to improving population mental health. We make suggestions as to how South Africa can move ahead on its mental health agenda, whilst also being a model for other countries in the region and across the globe.


Asunto(s)
Países en Desarrollo , Salud Global , Trastornos Mentales/epidemiología , Trastornos Mentales/rehabilitación , Servicios de Salud Mental/organización & administración , Estudios Transversales , Accesibilidad a los Servicios de Salud/organización & administración , Accesibilidad a los Servicios de Salud/estadística & datos numéricos , Necesidades y Demandas de Servicios de Salud/organización & administración , Humanos , Trastornos Mentales/psicología , Defensa del Paciente/estadística & datos numéricos , Estigma Social , Sudáfrica
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