GHENT UNIVERSITY Karoline FONCK - International Centre for ...

Once data entry was completed, they were checked through comparison with the
questionnaires. Preliminary data analysis permitted to detect errors in data entry. For the
larger studies, double data entry was performed. After data cleaning, analysis took place in
Nairobi but also in the overseas collaborating universities. Results were discussed with
scientific staff including a statistician, epidemiologists, behavioral scientists, fellow
researchers etc.
In univariate analysis, the Odds Ratios were used for the measurement of association of
proportions. Comparisons were made using Pearson’s χ 2 and Fisher’s exact tests. T test was
used for comparison of means. Logistic regression was used to take into account risk factors
and presence of other STIs for the risk of HIV infection.
2.2.5. Data dissemination
As the main aim of the research studies was to assess the quality and effectiveness of
existing STI prevention and control interventions, in order to be able to improve on them, it
has always been a priority to disseminate the results of the studies to the interested parties.
The results were discussed at the monthly steering committee where the National Aids
Control Program (NASCOP, MoH) and the European Commission were represented besides
the main partners, the University of Nairobi and the Nairobi City Council. Copies of finalized
papers were sent to interested parties including the NASCOP.
2.2.6. Conclusion
Consideration was given to issues such as quality of data collection and data entry, training
of research staff, quality control of laboratory results and data analysis. Nevertheless,
because of the methodological difficulties specific to this kind of research, some drawbacks
were unavoidable (logistic and administrative problems, loss to follow-up) and will be
discussed in detail in each chapter as well as in the general conclusion.
OBJECTIVES AND METHODS 21