Magister Public Health - MPH / Background: Tuberculosis (TB) poses a major public health challenge in South Africa and in the Northern Cape Province. The province has the third highest in TB incidence rate in the country. Poor adherence to TB treatment impacts negatively on treatment outcomes. Siyanda district in the Northern Cape Province has the second highest number of TB defaulters in the province despite the fact that 79.9% of these patients are on Community Based Direct Observation of Treatment (CBDOT). Aim: To explore the reasons for defaulting of TB patients from TB treatment in the CBDOT Programme in the Siyanda district, Northern Cape Province Study design: This was a qualitative exploratory study. Study population and sampling: Two TB nurses with varying years of experience in the TB Control Programme serving as key informants were selected from the participating facilities in the study area. Ten TB defaulters who were on the CBDOT programme were selected from the Electronic TB Register. Two focus group discussions (FGDs) comprising of purposively selected DOT Supporters (five in one group and six in the other) from different NGOs in the community were selected for maximum variation. Data collection: Key informant interviews were conducted with the TB nurses. Records of all defaulters in the study population were reviewed including clinic progress notes and patient TB treatment cards. In-depth interviews were conducted with the TB patients. FGDs were conducted with DOT supporters. Analysis: Analysis commenced simultaneously with collection of data. This enabled the researcher to continuously review and reflect on the data collected. Thematic content analysis was done.Categories emerged through the inductive process of the data analysis. Notes that were kept during data collection, reflections, audiotapes and transcripts were used to support the thick description of the findings. Results: The participants generally appreciated the programme and mostly had a good relationship with the DOT supporters. However, the quality of care exacerbated by inadequate health services such as lack of adherence counselling training of health professionals, low levels of education amongst TB defaulters, were found to be major contributory factors to TB defaulting. The patients interrupted treatment several times before defaulting, were not counselled during the interruption phase and understood TB messages differently. TB defaulters in the Siyanda District face socio economic challenges which include alcohol abuse, a major historic ill in the district and the grape farming community in the region. The impact of the disability grant on TB treatment adherence remains anecdotal and requires further research as TB defaulters did not admit to defaulting so that they could continue benefiting from the disability grant although these statements were refuted by the DOT supporters and key informants. The attitude of employers and fear of losing employment were also contributing factors. Conclusion and recommendations: It has become evident that TB in the Siyanda District is a public health issue. The predominantly rural, impoverished and transient community that moves to the farms to seek employment requires a CBDOT programme that will address pertinent challenges in the district to achieve a positive reduction in the TB defaulter rate. It will require collaboration with stakeholders including farmers, to address the challenges posed by the disease. Improved staff allocation, staff capacity development and community education are also recommended to improve quality of care.

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Many clients with developmental and/or intellectual disabilities (ID/DD) do not tolerate routine medical or dental procedures and may require intrusive interventions, including restraint of various types (i.e. chemical, mechanical, physical, etc.) during appointments. Graduated exposure, or stimulus fading, along with reinforcement for compliance, have been shown to increase cooperation and tolerance in some clients; however, many do not respond to these types of interventions. Nine participants diagnosed with ID/DD recieved compliance/tolerance training for routine medical or dental procedures. Results of these interventions were evaluated in the context of several potential indices of readiness, such as medical diagnoses, level of disability, and presence of challenging behavior, among others. Several of the variables appeared to be correlated with program responsiveness; however, a larger sample will be necessary to draw definitive conclusions. Client characteristics and past assessments (anecdotals, preference assessments, terminal probes, and survey data) were evaluated. The analytical framework developed for this analysis may be useful to future researchers and clinicians as a model for assessing readiness for tolerance training programs.

Background Acute coronary syndromes (ACS) are a major cause of mortality and morbidity in the developed world. By 2020, ACS will be the leading cause of morbidity and mortality worldwide, largely due to substantial increases in ACS burden in developing countries. The developing world has been under-represented in international ACS registries. The Arabian Gulf area is a part of the developing world where little is known about the epidemiology of ACS. The first aim of the dissertation is to compare ACS patient characteristics, current practice patterns, and in-hospital outcomes in the Arabian Gulf area to a large multinational sample. Patients with an ACS suffer numerous clinical complications that worsen their prognosis. Cardiogenic shock (CS) is the most serious complication of ACS and the leading cause of in-hospital death. Despite advances in therapies; CS hospital mortality rates continue to exceed 50%. The second aim of the dissertation is to describe the characteristics of patients presenting with ACS complicated by cardiogenic shock, their management, and outcomes in a large multinational sample. In recent years, ACS has been increasingly affecting younger patients. While marked age-related differences have been observed in the risk of developing as well as the prognosis of ACS, few studies however examined time trends in the epidemiology of ACS in young adult patients. The third aim of the dissertation is to examine trends in frequency rates, patient characteristics, treatment practices, and outcomes in young adults hospitalized with an ACS. Methods Data from two large multinational registries of patients hospitalized with an ACS were used for this investigation. Nearly 65,000 patients were enrolled in the Global Registry of Acute Coronary Events (GRACE) between 2000 and 2007, while 6,700 patients participated in the Gulf Registry of Acute Coronary Events (Gulf RACE) in 2007. Results Aim1: Patients in Gulf RACE were significantly younger and were more likely to be male, diabetic, and smoke Compared to GRACE. Patients in Gulf RACE were less likely to receive evidence based therapies. Short-term mortality rates were comparable between the two patient cohorts. Aim2: Compared to patients with no CS, patients with CS were more likely to be older, female, have a history of diabetes, and heart failure. Patients with CS were less likely to receive effective cardiac catheterization and adjunctive cardiac medications. In-hospital case-fatality rate of patients with CS were 59.4%. While in-hospital mortality declines over the study period, incidence rates only showed minor declines. Aim2: Baseline characteristics of patients < 55 years of age did not significantly change, while the use of evidence based therapies increased significantly during the years under study. Rates of short-term adverse outcomes and mortality significantly declined over time. Conclusions We observed marked regional differences in the risk profile, clinical management, and outcomes of patients with an ACS internationally compared to the Arab Middle East. Despite the encouraging trends in the use of evidence based therapies which have likely contributed to the improving trends in the prognosis of ACS, rates of development of ACS, as well as mortality due to ACS complications, remain high.

Sexual dysfunctions are serious mental health issues that impact an estimated one in three Americans. Due to the complex, relational nature of most sexual dysfunctions, mental health professionals trained to work with couples and their relationship interactions are likely to have better outcomes when treating clients with sexual dysfunction. Data from CIGNA Health Solutions was analyzed to explore differences in therapy outcome for various types of mental health professions when treating clients with sexual dysfunctions. The current research is a retrospective analysis of administrative data that explores whether or not type of profession (i.e. psychologists, Masters of social work, marriage and family therapist, or professional counselor) influences the outcome of mental health treatment. This study also explores whether therapy modality (i.e. individual, conjoint, or mixed mode, a combination of individual and conjoint therapy) influences therapy outcome. Treatment outcome was measured by recidivism rates, client drop out from therapy, the total number of sessions, and cost of treatment. Participants included 230 males and 189 females ages 18 to 101 (M =38.9, SD = 11.4) who received treatment for sexual disorders from 2001 to 2006. Participants were from all regions of the United States. Results indicate that overall, psychotherapeutic treatment for sexual dysfunctions is relatively brief, averaging about seven sessions across all professions. Results suggest that marriage and family therapists treat sexual dysfunctions using a conjoint and mixed mode approach more frequently than therapists with other licenses. Results also suggest that mixed mode therapy has drastically lower dropout rates and longer retention than individual or conjoint therapy. These results suggest that utilizing a combination of relational and individual sessions is beneficial to the treatment of sexual dysfunctions.

Treatment outcomes of young patients with invasive breast cancer treated radically at Groote Schuur Hospital from 2013 to 2017: A single centre study Background: Breast cancer is the leading cause of cancer- related deaths globally, and the commonest cancer in women under 40 years. There is currently a lack of data relating to treatment outcomes of young women with breast cancer particularly in low-and middle-income countries. Aim: This study aims to evaluate the treatment outcomes of young patients (under 40 years) treated radically for invasive breast cancer in a low-and middle-income setting. Settings: Groote Schuur Hospital, Cape Town, South Africa Methods: A retrospective review of 101 women under 40 years, with invasive breast cancer treated radically, between 2013 and 2017 was conducted. Patient characteristics, tumour characteristics, disease stage, treatment, and follow-up were recorded. Primary objectives included evaluating overall and disease free survival, and analysing recurrence patterns and clinicopathological features. Results: The five-year overall and disease free survival for the entire cohort was 77% and 51%, respectively. Five-year overall survival by molecular subtype showed that Luminal A had the best survival, while triple negative breast cancer had the worst overall survival. Conclusion: Young women with breast cancer have poor survival outcomes despite early presentation. There is limited data regarding breast cancer treatment outcomes in patients under forty years.

Thesis (MPH. (Epidemiology)) -- University of Limpopo, 2022 / Background: Tuberculosis (TB) is a fatal disease globally, if not managed well, with a million or more people dying by the disease annually in low and middle-income countries (LMIC). Around two billion people are thought to be asymptomatically (latently) infected with Mycobacterium tuberculosis, putting them at risk of acquiring active tuberculosis. Tests that identify immunoreactivity to mycobacterial antigens rather than live bacteria, as well as mathematical modelling, are used to estimate the prevalence of latent tuberculosis infection. According to reports, tuberculosis (TB) was the cause of 1.3 million fatalities among HIV-negative people in 2016, surpassing the global number of HIV/acquired immune deficiency syndrome (AIDS) deaths. In addition, TB was a factor in 374,000 HIV-related deaths. Despite the effectiveness of chemotherapy over the last seven decades, tuberculosis remains the world's leading infectious killer. In 2016, 10.4 million new cases were reported, a number that has remained constant since the dawn of the twenty-first century, confounding public health specialists tasked with designing and implementing measures to lessen the global burden of tuberculosis disease. As a result, the current study aims to look into the epidemiology of tuberculosis in Lesotho in order to help policymakers make decisions on TB control in the country. Methodology:. In the current investigation, a cross-sectional, retrospective descriptive study design was used, as well as a probability sampling strategy. The National TB-Database from the Ministry of Health in Lesotho was used as the source of data for this quantitative investigation, which was analyzed using STATA statistical software version 12 for Windows (STATA Corporation, College Station, Texas). A Chi-Squared test was used to compare categorical variables, while a t-test was used to examine continuous variables. A statistically significant P-value of 0.05 was used. Results: A total of 18 836 TB patient records were recovered, with 45 percent of the TB patients being females. The average age of the TB patients was 35.9 years, with a standard deviation of 12.7%, and the ages ranged from one year to 84 years. There vi was a statistically significant difference between the age groups (p value 0.001), with 33.1 percent of TB patents being in the age group 25–34 years, followed by 29 percent, 15.4 percent, 11.2 percent, and 5.5 percent in the age groups 35–44 years, 45–55 years, 15–24 years, and 55–64 years 65 years.. There has been a fluctuating treatment outcome of TB from 63.5% for cured patients in 2012 to 57.2% in 2013 and this rose to 60.4% in 2014 then eventually reached 76.7% in 2019. The TB treatment success rate in Lesotho also showed a similar trend as the cure rate. The overall TB death rates in the current study was found to be increasing on an annual basis from 7.4% in 2012 to 9.2% in 2018 then dropped to 8.5% in 2019. The TB patients who have not been evaluated for treatment outcomes have been decreasing annually from 4.4% in 2012 to 0.8% in 2019. The proportion of TB patients with known HIV status increased from 22.3% in 2015 to 90.5% in 2019 and similarly to the proportion of TB patients with HIV status positive increased from 15.1% in 2015 to 60.4% in 2019. The proportion of TB patients with HIV status positive increased with increasing age group all age groups. Conclusion: TB is still a concern in Lesotho, where treatment target goals have not yet been fulfilled, the findings of this study underline the importance of addressing the underlying socio-economic causes of TB. The most important goal in TB control is to detect 70% and cure at least 85% of sputum smear positive cases. If these goals are met, the prevalence, incidence, transmission, and medication resistance to tuberculosis (TB) could all decrease. Despite the National Tuberculosis Control Programme's attempts to enhance TB patients' access to treatment and adherence to therapy, the percentage of patients who have good treatment outcomes remains low. Despite having an 84 percent detection rate and using the DOTS technique, the available data did not identify the types of tuberculosis, therefore we were unable to forecast multidrug-resistant tuberculosis (MDR-TB).

Este estudio presenta los resultados de una investigación llevada a cabo en un contexto escolar con adolescentes que cumplían criterios diagnósticos para el subtipo generalizado de fobia social (FSG en adelante) (DSM-IV-TR; APA, 2000). La muestra estuvo compuesta por 78 adolescentes con una edad media de 15.27 Años (DT=0.92; Rango: 14-18 años). Los sujetos fueron clasificados y asignados a tres condiciones experimentales de tratamiento en función de una nueva propuesta de subdivisión y operacionalización de la FSG: levemente, moderadamente y gravemente generalizada. Las tres condiciones experimentales recibieron el paquete multicomponente denominado "Intervención en Adolescentes con Fobia Social". Los resultados mostraron la eficacia del tratamiento tanto a corto como a largo plazo (12 meses) en las tres condiciones experimentales. Respecto a las comparaciones intergrupo, no se hallaron diferencias entre los tres grupos ni en las pruebas de significación estadística ni en las de significación clínica (dejar de cumplir criterios diagnósticos de fobia social). Sin embargo, los valores de los tamaños del efecto indicaron una relación directamente proporcional entre eficacia del tratamiento y gravedad del subtipo: FSGG>FSMG>FSLG. En resumen, los datos obtenidos avalan la significación estadística y clínica de esta intervención en la fobia social adolescente, independientemente de la gravedad supuesta a cada subgrupo del subtipo generalizado de fobia social. / This study displays the results of a research in a school-based setting with adolescents who fulfilled diagnostic criteria for the generalized subtype of social phobia (GSP) (DSM-IV-TR; APA, 2000). The sample consisted of 78 adolescents with a mean age of 15.27 years (SD=0.92; Age range: 14-18 years). Participants were classified and assigned to three experimental conditions of treatment based on a new proposal of subdivision and operacionalization of GSP: mild, moderate, and severe. The three experimental conditions received a multicomponent package labelled "Intervention in Adolescents with Social Phobia". Results showed the effectiveness of this intervention as well in short as in long-term follow-ups (12 months) in the three experimental groups. Regarding the intergroup comparisons, there were not differences among the three conditions either in the statistical significance tests or in the clinic one (not fulfilling the diagnostic criteria for social phobia). However, the values of the effect sizes indicated a directly proportional relationship between effectiveness of our treatment and severity of the subtypes: FSGG> FSMG> FSLG. In summary, the collected data supports the effectiveness of "IAFS", independently of the severity supposed to each subtype of GSP.

Chemo-radiation therapy is a principal modality for the treatment of head and neck cancers, and its efficacy depends on the interaction of tumor oxygen with free radicals. In this study, we adopted a novel hybrid diffuse optical instrument combining a commercial frequency-domain tissue oximeter (Imagent) and a custom-made diffuse correlation spectroscopy (DCS) flowmeter, which allowed for simultaneous measurements of tumor blood flow and blood oxygenation. Using this hybrid instrument we continually measured tumor hemodynamic responses to chemo-radiation therapy over the treatment period of 7 weeks. We also explored monitoring dynamic tumor hemodynamic changes during radiation delivery. Blood flow data analysis was improved by simultaneously extracting multiple parameters from one single autocorrelation function curve measured by DCS. Patients were classified into two groups based on clinical outcomes: a complete response (CR) group and an incomplete response (IR) group with remote metastasis and/or local recurrence within one year. Interestingly, we found human papilloma virus (HPV-16) status largely affected tumor homodynamic responses to therapy. Significant differences in tumor blood flow index (BFI) and reduced scattering coefficient (μs’) between the IR and CR groups were observed in HPV-16 negative patients at Week 3. Significant differences in oxygenated hemoglobin concentration ([HbO2]) and blood oxygen saturation (StO2) between the two groups were found in HPV-16 positive patients at Week 1 and Week 3, respectively. Receiver operating characteristic curves were constructed and results indicated high sensitivities and specificities of these hemodynamic parameters for early (within the first three weeks of the treatment) prediction of one-year treatment outcomes. Measurement of tumor hemodynamics may serve as a predictive tool allowing treatment selection based on biologic tumor characteristics. Ultimately, reduction of side effects in patients not benefiting from radiation treatment may be feasible.

Antenatal depression (depression under graviditeten) drabbar 10–20% av gravida och innebär risker för både den gravida och barnet. Forskning visar att internetbaserad kognitiv beteendeterapi (IKBT) tycks vara effektivt jämfört med sedvanlig mödravård. Uppsatsen var en sambands- och prediktionsstudie som genomfördes inom den randomiserade DANA-studien för IKBT vid antenatal depression. En inomgruppsdesign med upprepade mätningar tillämpades där 40 kvinnor med antenatal depression deltog. Syftet var att undersöka (a) patientnöjdhet med bedömningssamtalet i relation till behandlingsföljsamhet, avhopp och minskning av depressionssymtom under IKBTbehandlingen, samt (b) jämföra förändring i depressionssymtom mot två tidigare studier. Resultatet visade att en högre patientnöjdhet med bedömningssamtalet signifikant predicerade en mindre minskning av depressionssymtom mellan screening och förmätning. Inga signifikanta samband hittades mellan patientnöjdhet med bedömningssamtalet och behandlingsföljsamhet eller avhopp. Slutsatser bör dras med stor försiktighet utifrån metodologiska begränsningar. Resultatet visade även att depressionssymtom jämfört med förmätningen signifikant minskade från andra veckomätningen i behandlingen till och med eftermätningen vecka tio. Detta bekräftade tidigare studiers resultat. Framtida randomiserade prövningar kan ge underlag till utvecklingen av bedömningssamtal och IKBT mot antenatal depression. / Antenatal depression (depression during pregnancy) affects 10–20% of pregnant women and involves risks for both the pregnant woman and the child. Research shows that internet-based cognitive behavioral therapy (ICBT) seems to be effective compared to conventional maternity care. The thesis was a correlational predictive study that was conducted within the randomized DANAstudy for ICBT during antenatal depression. An in-group design with repeated measurements was applied in which 40 women with antenatal depression participated. The purpose was to examine (a) patient-satisfaction with the assessment interview in relation to adherence, dropouts and remissionof depressive symptoms during ICBT treatment, and (b) compare changes in depressive symptoms against two previous studies. The result showed that a higher patient-satisfaction with the assessment interview significantly predicted a lesser reduction of depressive symptoms between screening and pre-measurement. No significant correlations were found between patient-satisfaction with the assessment interview and treatment adherence or dropouts. Conclusions should be drawn with great caution based on methodological limitations. The result also showed that depressive symptoms compared with the pre-measurement decreased significantly from the second weekly measurement in the treatment until the post-measurement week ten. This confirmed the results of previous studies. Future randomized trials may provide a basis for the development of assessment interviews and ICBT for antenatal depression.