Comparison of the prevalence of HIV infection in circumcised and uncircumcised men from Salima District in Malawi
- Authors: Kankuwe, Hector Master
- Date: 2012
- Subjects: HIV infections -- Malawi , Initiation rites -- Malawi
- Language: English
- Type: Thesis , Masters , MSc (Biostatistics and Epidemiology)
- Identifier: vital:11778 , http://hdl.handle.net/10353/462 , HIV infections -- Malawi , Initiation rites -- Malawi
- Description: The overall objective of the study was to investigate the relationship between male circumcision status and HIV infection in men from Salima district in Malawi. A cross-sectional survey-based study of men aged 15 years or more was conducted at three sites in Salima district, each of which targeted 90 participants, half of whom were circumcised and the other half uncircumcised. These participants had already decided on their own to visit HIV Testing and Counseling centres at these sites to know their HIV serostatus. Consenting men were drawn into the study using quota sampling, interviewed through a structured questionnaire in local language and tested for HIV during January and March 2011. Measures of association were performed using analysis of contingency tables and Pearson’s chi-square tests or Fisher’s exact tests for comparison of proportions in STATA version 11.0 and PASW Statistics 18.0 software. Unadjusted odds ratios were used to approximate the direction and strength of association. Further, a multivariable logistic regression model was fit to determine which other variables were significantly associated with HIV infection. The study was approved by University of Fort Hare Interim Research Ethics Committee and National Health Sciences Research Committee in Malawi. The overall prevalence of HIV infection was 11.5 percent. However, it was less than half in circumcised males (7.4 percent) compared with uncircumcised counterparts (15.6 vi percent). While Fisher’s exact test revealed a borderline statistically significant association between male circumcision status and HIV infection (p 0.055), Pearson’s chi-square test showed a stronger significant association between the two variables ( p 0.036). The strength of the association was manifested by the odds of HIV infection being roughly 0.43 times lower for circumcised males than their uncircumcised counterparts with a 95 percent confidence interval of (0.20 0.96). Although the association was maintained after controlling for some variables, it lost statistical significance when adjusted for other variables. A multivariable logistic regression revealed that three other variables had significant associations with HIV infection and these were: falling in the age group of 25 years or more (OR 4.69; p 0.020), having had sex with an HIV positive partner (OR 12.15; p 0.000) and having contracted a sexually transmitted infection (OR 3.25; p 0.032). Male circumcision status is significantly related to HIV infection. Although the study involved a small sample size and undertaken in one district in Malawi, the finding is consistent with existing clinic-based findings in literature that indicate a lower risk of HIV infection in circumcised males than in uncircumcised males. Consequently, male circumcision could be considered if it can prove to be a public health intervention in the Malawi context aimed at reducing the risk of uncircumcised males becoming infected by HIV.
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- Date Issued: 2012
Exchange rates and economic growth in emerging economies: the case of South Africa
- Authors: Sibanda, Bornapart
- Date: 2012
- Subjects: Economic development , Currency convertibility -- South Africa , Foreign exchange -- South Africa , Foreign exchange rates -- South Africa , Foreign exchange administration -- South Africa , South Africa -- Economic conditions
- Language: English
- Type: Thesis , Masters , M Com
- Identifier: vital:11464 , http://hdl.handle.net/10353/d1007045 , Economic development , Currency convertibility -- South Africa , Foreign exchange -- South Africa , Foreign exchange rates -- South Africa , Foreign exchange administration -- South Africa , South Africa -- Economic conditions
- Description: This study examines the impact of exchange rate volatility and misalignment on economic growth in South Africa. It applies the Johansen co integration test and the vector error correction model on quarterly data for the period 1990:01-2010:04. Exchange rate volatility is measured as the standard deviation of both the nominal and nominal effective exchange rate. The study constructs three measures of exchange rate misalignment, with two of the measures constructed using the Producer Price Index and Consumer Price index based Purchasing Power Parity. The third measure was based on the difference between the nominal and effective exchange rate. Contrary to pre-dominant findings in the exchange rate literature, the study finds a positive and significant relationship between exchange rate volatility and economic growth and attributes it to composition of the country’s exports that are largely made up of commodities that act as essential inputs in many production processes. As a result, the variability of prices caused by exchange rate volatility is not expected to deter demand for these commodities. A negative and significant relationship between exchange rate misalignment and economic growth was found. The findings of the study show that it is important for monetary authorities to ensure that the exchange rate is always at an appropriate level in order to avoid the negative implications of exchange rate misalignment on economic growth.
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- Date Issued: 2012
The impact of transport costs on household income: the case of Nkonkobe Municipality Alice in the Easten Cape Province
- Authors: Dlwangushe, Sizwe
- Date: 2012
- Subjects: Income -- South Africa -- Eastern Cape , Transportation and state -- South Africa -- Eastern Cape , Transportation -- Cost effectiveness , Automobiles -- Fuel consumption , Rural poor -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , M Com
- Identifier: vital:11470 , http://hdl.handle.net/10353/d1007130 , Income -- South Africa -- Eastern Cape , Transportation and state -- South Africa -- Eastern Cape , Transportation -- Cost effectiveness , Automobiles -- Fuel consumption , Rural poor -- South Africa -- Eastern Cape
- Description: The study investigated the impact of transport costs on household income the case of Nkonkobe Local Municipality. The objective of the study was to establish the impact of transport costs on household income. To achieve the objective, the study hypothesized that transport costs have a negative impact of household income. The research design of the study that was used include research instrument, research technique, sample size, population and data analysis procedure. However the research instrument that was followed was the questionnaire which contains a set of questions whilst the research technique used to collect primary data was the self-administered questionnaire. The results of the study revealed that households in Nkonkobe Local Municipality were spending more of their income on transport. Finally, the study recommended that subsidies for poor households must be provided by the government.
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- Date Issued: 2012