Thesis (PhD)--Stellenbosch University, 1998. / Some digitised pages may appear illegible due to the condition of the original microfiche copy / ENGLISH ABSTRACT: see item for full text. / AFRIKAANSE OPSOMMING: sien item vir volteks.

Thesis (DMed)--Stellenbosch University, 2008. / The comparative study presented in this dissertation specifically aimed to assess fracture risk in black (Xhosa) and white South African women by evaluating known determinants of bone strength as well as the propensity to falls. We thus compared the prevalence of clinical (historic) risk factors for osteoporosis, measured and compared vertebral and femoral bone mineral density (BMD) employing dual energy X-ray absorptiometry (DEXA), ultrasound variables using the Sahara sonometer, serum parathyroid hormone (PTH) and 25-OH Vitamin D, mineral homeostasis and modern biochemical markers of bone turnover, bone geometry and the propensity to falls. Finally, we determined the prevalence of vertebral fractures in these black and white South African females. 1. Significant ethnic differences were noted in the presence and frequency of historical clinical and lifestyle risk factors for osteoporosis. Blacks were heavier and shorter, they consumed less calcium, were more inactive, preferred depot-medroxyprogesterone acetate as contraceptive agent and were of higher parity. Whites smoked more, preferred oral oestrogen containing contraceptive tablets and were more likely to have a positive family history of osteoporosis. Hormone therapy was used almost exclusively by postmenopausal whites. Inter-ethnic differences in weight, physical activity and high parity was most marked in the older subjects. 2. We found that peak spinal BMD was lower, but peak femoral BMD similar or higher (depending on the specific proximal femoral site measured) in black South-African females compared with whites. The lower peak spinal BMD was mainly attributed to lower BMD’s in the subgroup of black females with normal to low body weight, indicating that obesity either protected black females against a low spinal BMD or enhanced optimal attainment of bone mineral. An apparent slower rate of decline in both spinal- and femoral BMD with ageing was noted in the black females compared with whites in this cross-sectional study – an observation which will require confirmation in longitudinal, follow-up studies. This resulted in similar spinal BMD values in postmenopausal blacks and whites, but significantly higher femoral BMD measurements in blacks. The volumetric calculation of bone mineral apparent density (BMAD) at the lumbar spine and femoral neck yielded similar results to that of BMD. Spinal BMAD was similar in blacks and whites and femoral neck BMAD was consistently higher in all the menopausal subgroups studied. Weight significantly correlated with peak- and postmenopausal BMD at all sites in the black and white female cohorts. Greater and better maintained body weight may be partially responsible for slower rates of bone loss observed in black postmenopausal females. Most of the observed ethnic difference in BMD was, in fact, explained by differences in body weight between the two cohorts and not by ethnicity per se. 3. A low body weight and advanced age was identified as by far the most informative individual clinical risk factors for osteopenia in our black and white females, whereas physical inactivity was also identified as an important individual risk factor in blacks only. Risk assessment tools, developed and validated in Asian and European populations, demonstrated poor sensitivity for identification of South African women at increased risk of osteopenia. The osteoporosis risk assessment instrument (ORAI) showed the best results, with sensitivities to identify osteopenic whites at most skeletal sites approaching 80% (78% - 81%). The risk assessment tool scores appear to be inappropriate for our larger sized study cohort, especially our black subjects, thus resulting in incorrect risk stratification and poor test sensitivity. General discriminant analysis identified certain risk factor subsets for combined prediction of osteopenia in blacks and whites. These risk factor subsets were more sensitive to identify osteopenia in blacks at all skeletal sites, compared with the risk assessment tools described in the literature. 4. Higher ultrasonographically measured broadband ultrasound attenuation (BUA) and speed of sound (SOS) values were documented in our elderly blacks compared with whites, even after correction for differences in DEXA determined BMD at the spine and proximal femoral sites. BUA and SOS showed no decline with ageing in blacks, in contrast to an apparent significant deterioration in both parameters in ageing whites. If these quantitative ultrasound (QUS) parameters do measure qualitative properties of bone in our black population, independent of BMD as has been suggested in previous work in Caucasian populations, the higher values documented in elderly blacks imply better preservation of bone quality in ageing blacks compared with whites. The correlation between QUS calcaneal BMD and DEXA measured BMD at the hip and spine was modest at best. QUS calcaneal BMD was therefore unable to predict DEXA measured BMD at clinically important fracture sites in our study population. 5. Bone turnover, as assessed biochemically, was similar in the total pre- and postmenopausal black and white cohorts, but bone turnover rates appeared to differ with ageing between the two racial groups. A lower bone turnover rate was noted in blacks at the time of the menopausal transition and is consistent with the finding of a lower percentage bone loss at femoral sites at this time in blacks compared with whites. Bone turnover only increased in ageing postmenopausal blacks, and this could be ascribed, at least in part, to the observed negative calcium balance and the more pronounced secondary hyperparathyroidism noted in blacks. Deleterious effects of secondary hyperparathyroidism on bone mineral density at the proximal femoral sites were demonstrated in our postmenopausal blacks and contest the idea of an absolute skeletal resistance to the action of PTH in blacks. The increase in bone turnover and the presence of secondary hyperparathyroidism due to a negative calcium balance may thus potentially aggravate bone loss in ageing blacks, especially at proximal femoral sites. 6. Shorter, adult black women have a significantly shorter hip axis length (HAL) than whites. This geometric feature has been documented to protect against hip fracture. The approximately one standard deviation (SD) difference in HAL between our blacks and whites may therefore significantly contribute to the lower hip fracture rate previously reported in South African black females compared with whites. Average vertebral size was, however, smaller in black females and fail to explain the apparent lower vertebral fracture risk previously reported in this population. Racial differences in vertebral dimensions (height, width) and/or other qualitative bone properties as suggested by our QUS data may, however, account for different vertebral fracture rates in white and black women – that is, if such a difference in fact exists. 7. The number of women with a history of falls was similar in our black and white cohorts, and in both ethnic groups the risk of falling increased with age. There is a suggestion that the nature of falls in our black and white postmenopausal females may differ, but this will have to be confirmed in a larger study. Fallers in our postmenopausal study population were more likely to have osteoporosis than non-fallers. Postmenopausal blacks in our study demonstrated poorer outcomes regarding neuromuscular function, Vitamin D status and visual contrast testing and were shown to be more inactive with ageing compared with whites. An increased fall tendency amongst the black females could not however be documented in this small study. Quadriceps weakness and slower reaction time indicated an increased fall risk amongst whites, but were unable to distinguish black female fallers from non-fallers. 8. Vertebral fractures occurred in a similar percentage of postmenopausal blacks (11.5%) and whites (8.1%) in our study. Proximal femoral BMD best identified black and white vertebral fracture cases in this study. Quite a number of other risk factors i.e. physical inactivity, alcohol-intake, poorer physical performance test results and a longer HAL were more frequent in the white fracture cases and could therefore serve as markers of increased fracture risk, although not necessarily implicated in the pathophysiology of OP or falls. However, in blacks, only femoral BMD served as risk factor. Similar risk factors for blacks and whites cannot therefore be assumed and is deserving of further study. White fracture cases did not fall more despite lower 25-OH-Vitamin D, poorer physical performance and lower activity levels than non-fracture cases. Calcaneal ultrasonography and biochemical parameters of bone turnover were similar in fracture and non-fracture cases in both ethnic groups. Our study data on vertebral fractures in this cohort of urbanized blacks thus cautions against the belief that blacks are not at risk of sustaining vertebral compression fractures and emphasize the need for further studies to better define fracture prevalence in the different ethnic populations of South Africa. 9. In our study, hormone therapy in postmenopausal white women improved bone strength parameters and reduced fall risk. In hormone treated whites compared with non-hormone users, a higher BMD at the spine and proximal femur as determined by DEXA were documented and all QUS measurements were also significantly higher. The biochemically determined bone turnover rate, as reflected by serum osteocalcin levels, was lower in hormone users. Fall frequency was lower in the older hormone treated women (≥ 60yrs) and greater quadriceps strength and reduced lateral sway was noted. Only one patient amongst the hormone users (2%) had radiological evidence of vertebral fractures compared with four patients (6%) amongst the never-users. As hormone therapy was used almost exclusively by whites in this study population, the impact of hormone therapy on postmenopausal black study subjects could not be assessed.

Transformation of service delivery in the Westcoast winelands region's hospitals: challenges and prospects

M.Cur. / With reference to the question whether the interhospital transport of ill neonates in South Africa and more specifically in the Transvaal is adequate, a study was done in which the quality of the interhospital transport of ill neonates on the Witwatersrand was investigated. Criteria for the interhospital transport of ill neonates were formulated according to a literature review and they were validated. The quality of interhospital transport of ill neonates on the Witwatersrand was researched according to the formulated criteria. The case study method was used and was applied to neonates who were transported to a selected private- and provincial hospital by private- and provincial ambulance services between May 1987 and June 1987. Through the results of the study the researcher came to the conclusion that the interhospital transport of ill neonates on the Witwatersrand is inadequate. Recommendations which may contribute to the improvement of the transport system were made.

Although the importance of Attachment in the normal development of a child has repeatedly been shown (Bowlby, 1961; 1979) there is a limited amount of research into its relationships with the usage of defense mechanisms and emotions. This research, therefore, investigated the relationships between attachment type, defense mechanisms and emotions during middle childhood (8-12 years) in 64 children from 4 children’s homes and 1 hospital in the Gauteng area. The children completed the Deferential Emotions Scale IV (DES-IV), the Attachment Story Completion Test (ASCT) and the Attachment Security Scale (ASS). The legal guardians of the children completed the Comprehensive Assessment of Defense Scale (CADS). Significant correlations were found to exist between the usage defense mechanisms and emotions. The results obtained from the analyses therefore suggest a complex interplay of relationships between attachment, defense mechanisms and emotion during middle childhood for the children in these institutions. For example, the research found that certain defense mechanisms and emotions were found to be correlated in a complex and interrelated system of interactions. Similarly, although no significant associations were found between attachment, defense mechanisms and emotions were found, the frequency distributions provided detailed information suggesting that attachment does influence the defenses used and emotion during middle childhood. These finding suggest that further research needs to be conducted in this area to further this knowledge base and to inform the caregivers and staff at institutions such as those included in the study.

Background: This study is located within a complex network of paradigmatical methodological, and institutional relationships, and draws concepts from a range of scholastic traditions. The hermeneutical tradition within Sociology, particularly as exemplified in the work of Jurgen Habermas, provides a starting point for exploring and interpreting the experiences of chronic illness and healthcare access. The concept of the lifeworld/ healthworld as a description of the complex of health beliefs and behaviours of individuals in relation to the ailing body is used to describe chronic illness and healthcare access, both as lived experience and as fields for public health intervention. Aim: To understand how women living with chronic illness experience their illness and access healthcare in an urban and rural context. Methods: This study is a mixed-methods comparative case study of the healthcare access experiences of women with chronic illness in an urban and rural area in South Africa. The core of the study methodology is a comparative qualitative case study, with quantitative methods serving to contextualise the findings. The urban component of the study was conducted in Birth to Twenty (Bt20), a birth cohort study located in Johannesburg-Soweto. The rural component of the study was conducted in Agincourt, a sub-district of the Bushbuckridge district in Mpumalanga Province. The quantitative context for the Soweto case study uses secondary data collected by Bt20 to construct a historical overview of the use of formal and informal healthcare services in Soweto. It also uses the findings of a large scale cross sectional survey of the primary caregivers of the Bt20 cohort, conducted between November 2008 and June 2010. The rural case study is contextualised by a detailed review of research conducted in the Agincourt sub-district. For the qualitative case studies I employed a qualitative methodology incorporating serial narrative interviews to present an experience-based overview of concepts of disease causation, self treatment and coping. Results: The cross-sectional survey describes a low resource population with a high prevalence of chronic noncommunicable disease (NCDs). Over one third (37.3%) of the population in Soweto could be categorised as having a low socio-economic status, defined as access to only one or less of 5 socio-economic items. Slightly over half the respondents in Soweto (50.7%) reported having at least one chronic illness. Only around a third (33.3%) of the survey participants with chronic illnesses reported accessing formal healthcare services in the last 6 months. Similar trends were found in the review of research carried out in Agincourt. The qualitative case study in Soweto is characterised by a preoccupation with how the medicine from the clinic interacts with the body. The search for alternative remedies took place not as an attempt to cure disease, but to reach a deeper understanding of the diseased state of the body. The Agincourt qualitative case study highlights the importance of church membership, particularly of African Christian Churches, as the strongest factor motivating against the open use of traditional medicine. In both study sites there is evidence that traditional healers were consulted for social purposes rather than health-related purposes. Discussion: Soweto and Agincourt share similar patterns of healthcare utilisation and healthcare belief. Both study sites were characterised by increasing trends in formalisation. At the same time, only a small portion of individuals in both study sites with chronic illness utilised formal healthcare services. A consideration of the findings suggests five broad themes for further research: (1) Processes of constructing body narratives; (2) Encounters with purposive-rational systems; (3) Encounters with traditional medicine; (4) Encounters with contemporary informal medicine; and (5) Religion and healthcare. These five themes constitute the beginning of a comprehensive map of the lifeworld/ healthworld schema. Such a schema has implications for healthcare policy and practice, particularly with regard to the development of integrative paradigms in South Africa as exemplified by Community Oriented Primary Care (COPC). Conclusion: The aims and objectives of the study were met through the development of an initial lifeworld/ healthworld schema, which suggests that the coexistence of diverse public healthcare concerns of high NCD prevalence and low formal healthcare utilisation is best addressed through the adoption of integrated healthcare approaches based on lifeworld/ healthworld rationalistion.

MA, Faculty of Humanities (Social Anthropology), University of the Witwatersrand, 2001

As the economic hub of South Africa, Johannesburg attracts cross-border migrants in search of improved livelihoods; over half the population of some of its inner-city suburbs are made up of cross border migrants. Globally as well as locally, foreigners have been blamed for the spread of diseases such as HIV. As a result, they have suffered challenges in accessing public healthcare, particularly antiretroviral treatment (ART) for HIV. Studies have shown that despite these challenges - foreigners experienced better ART outcomes than nationals. There is a need to explore the ways in which cross border migrants use to access and to stay on treatment, given the wide-range of challenges that they face during their stay in Johannesburg. Semi-structured interviews with five nurses and ten cross-border migrants currently receiving ART, along with non-participant observations, were used to collect data from two public clinics in inner-city Johannesburg. Analysis suggests that the family network in the country of origin remains critical, as cross border migrants are not disclosing their status in the city in which they live, but do so to their families in their countries of origin. Data shows that when it comes to accessing and staying on treatment, cross-border migrants go to the clinic every month as do nationals; ask for more treatment from nurses when going home temporarily; eat healthily; but hide when taking medication, and negotiate confidentiality and trust within their families in countries of origin. Some are found to access treatment in their countries of origin while staying in Johannesburg. Despite the lack of social networks in the inner city, this data suggests that cross-border migrants are successful in accessing and continuing with ART. There is need for future research to look at social networks for internal migrants, so as to compare results.

This document is submitted in partial fullfilment for the degree: Master of Architecture [Professional] at the University of the Witwatersrand, Johannesburg, South Africa, in the year 2015. / People with intellectual disabilities are considered to be marginalised in our society. They continue to face prejudices, stigmas and are discriminated against resulting in social exclusion. This thesis develops a framework and methodology for pursuing inclusive environments and viable productivity within the workplace for persons with intellectual disabilities. The lack of opportunities within the workplace for individuals with intellectual disabilities intensi es their exclusion from society. The road to achieving inclusivity within the workplace has become a challenging one to navigate, as previous strategies which were developed to enable equality are far removed from what was intended. More often than ever before, employers are challenged from both a legal and political perspective for failing to diversify the workplace. Equality advocates as well as those who attempt to diversify their companies face obstacles within the workplace, namely inadequate resources or uncertainty about their appropriate role or approach in dealing with minorities. The building will serve as a learning hub, used by both persons with intellectual disabilities and people who are commonly referred to as able bodied. It will function as a level between education (if any) and the period before entering the workplace. The learning hub will afford persons with intellectual disabilities the opportunity to explore their capabilities in environments similar to that of a workplace and gain knowledge and experience prior to entering the workplace. The program envisaged in this thesis will demonstrate that this intervention is mutually bene cial to a company and the individual with an intellectual disability. In the first instance, the employer acquires knowledge and skills to act as a catalyst in enabling the transition of a person with an intellectual disability into the workplace to augment inclusivity. Secondly, the person with an intellectual disability through the program will be clothed with knowledge and expertise enabling meaningful participation amongst able-bodied employees. The transformation within workplaces as a result of the knowledge gained through this centre should create an enabling environment that incorporates the individual’s needs or one that best satis es their needs. The support by the employer is vital in the outcome and success of integrating people with disabilities into the social framework. The building is developed around a range of interactive programs between those with intellectual disabilities and people acting as the supervisors from workplaces. The supervisors, through training will be best placed to oversee progression and be empathetic toward staff with intellectual disabilities. This will enable them to transfer their knowledge and expertise of dealing with and accommodating employees with intellectual disabilities to their respective workplaces. A mock work environment will form the basis of the experiential training ground and in conjunction with job sampling will establish where a user will be best suited within the work environment. Public facilities encourage members of the public to become active participants within the space providing exposure and understanding towards those with intellectual disabilities. The centre is expected to be both accessible and lasting and will mediate experiential training and aligning it to workplace practices. The centre will be a vital space to enhance inclusion and for producing sustainable change for this marginalised group of persons. The building is located within an educational precinct on Melle Street, Braamfontein. The site which is in close proximity to the Central Business District allows for the centre to feed into businesses and vice versa. The location also allows for easy access to people from all over Johannesburg utilising various transport methods. The site being amid universities and schools ensures integration and optimum use, for educational facilities to link into this program. It also allows for social cohesion through exposure between the users of the building and other students in the surrounding area. / EM2017

Thesis (M.A. (Social Work)) --University of Limpopo, 2015 / Please refer to the document / University of Limpopo