Browsing by Subject "interventions"
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- ItemRestrictedModelling the relationship between antiretroviral treatment and HIV prevention: limitations of the Spectrum AIDS Impact Model in a changing policy environment(2007) Nattrass, NattrassThis paper shows how two publicly available epidemiological modelling packages, namely the Spectrum AIDS Impact Model and the ASSA2003 AIDS and Demographic Model, predict very different impacts from rolling out highly active antiretroviral treatment (HAART) on new HIV infections. Using South Africa as a case study, it shows that the ASSA2003 model predicts a significant drop in new HIV infections as HAART is rolled out, whereas the Spectrum model assumes that HAART does not have a preventative impact (and in fact generates a small increase in new HIV infections). Users will thus draw different conclusions about the public health benefits of HAART depending on which modelling package they use. Despite being presented as a policy-oriented modelling tool capable of exploring 'what if' questions about the impact of different policy choices, the Spectrum model is illequipped to do so with regard to a HAART rollout. Unlike Spectrum, ASSA2003 is more flexible and its assumptions are clear. Better modelling and more information (including about the relationship between HAART and sexual risk behaviour) is required to develop appropriate public-policy modelling for the HAART era.
- ItemOpen AccessReducing neonatal deaths in South Africa - are we there yet and what can be done?(Health and Medical Publishing Group, 2012) Velaphi, S; Rhoda, NIn the year 2000, 189 member countries of the United Nations committed themselves to eight goals towards the development and well-being of their nations. These goals are called Millenium Development Goals (MDGs). The fourth goal (MDG4) aims to reduce the mortality rate in children under the age of 5 years (U5MR) by two thirds between 1990 and 2015. Infants less than 1 month old account for about 40% of deaths of children under the age of 5 years globally.1 Achieving MDG4 will therefore need to include reducing deaths during the neonatal period. The goal of reducing U5MR by two thirds for neonatal deaths in South Africa meant reducing the neonatal mortality rate (NMR) from 21/1 000 live births in 1998 to 7/1 000 by 2015. In order to achieve this, all neonatal deaths need to be scrutinsed by focusing on mortality rates and pathological and health system causes of neonatal deaths. Of paramount importance, however, would be looking at interventions that could impact significantly on reducing these deaths. In this article we discuss the mortality rates in South Africa, the rest of the world and Africa, and discuss causes and interventions that can be implemented to reduce these deaths in South Africa.
- ItemOpen AccessThe Classroom Communication Resource (CCR) intervention to change peer’s attitudes towards children who stutter (CWS): study protocol for a randomised controlled trial(BioMed Central, 2018-01-17) Mallick, Rizwana; Kathard, Harsha; Thabane, Lehana; Pillay, MershenBackground: Children who stutter (CWS) are at a high-risk of being teased and bullied in primary school because of negative peer attitudes and perceptions towards stuttering. There is little evidence to determine if classroom-based interventions are effective in changing peer attitudes towards stuttering. The primary objective is to determine the effect of the Classroom Communication Resource (CCR) intervention versus usual practice, measured using the Stuttering Resource Outcomes Measure (SROM) 6-months post-intervention among grade 7 students. The secondary objective is to investigate attitude changes towards stuttering among grade participants on the SROM subscales. Methods: A cluster randomised controlled trial (RCT) will be conducted with schools as the unit of randomization. Schools will be stratified into quintile groups, and then randomized to receive the CCR intervention or usual practice. Quintile stratification will be conducted in accordance to the Western Cape Department of Education classification of schools according to geographical location, fee per school and allocation of resources and funding. Participants will include primary schools in the lower (second and third) and higher (fourth and fifth) quintiles and children aged 11 years or older in grade 7 will be included. The study will consist of the CCR intervention program or usual practice as a no-CCR control. The CCR is a classroom-based, teacher led intervention tool including a story, role-play and discussion. The grade 7 teachers allocated to the CCR intervention, will be trained and will administer the intervention. The analysis will follow intention-to-treat (ITT) principle and generalized estimating equations (GEE) to compare groups on the global SROM and its subscales to account for possible clustering within schools. The subgroup hypothesis will be tested by adding an interaction term of quintile group x intervention. Discussion: This study is designed to assess whether the CCR intervention versus usual practice in schools will lead to positive shift in attitudes about stuttering at 6-months post-intervention among grade 7 participants. Trial registration: The trial number is NCT03111524. It was registered with clinical trials.gov Protocol registration and results system (PRS) retrospectively on 9 March 2017.