Objective To find lower and upper bounds of HIV prevalence in Malawi under mild and intuitive assumptions to assess the importance of the refusal issue in the estimation of HIV prevalence. Methods We derive bounds based on the following two key assumptions: (i) Among those who have never taken an HIV test before, those who refuse to take an HIV test (hereafter “refusers”) have at least as much ...

Age of the couples is one of the most basic and important information collected in almost all demographic and health surveys. This particular study makes an attempt in exploring the extent of age difference and the change over time among the couples in India. It also analyses the impact of other socio-economic, demographic and cultural factors in explaining the variation in age difference among...

Over eight years, eight cases of childhood myeloproliferative disease were recognised in the northern region of England (population 3.1 million). Five were classic chronic myeloid leukaemia (CML) and the three others, forms of myeloproliferative disease. No case of juvenile CML was recognised. With the exception of CML, "adult" type myeloproliferative disease of children is underrepresented in ...

This paper discusses the methodology for conducting a demographic and psychographic study of online buying behaviour. The factors is an essential aspect market research that can provide insights into consumer such involves several steps, including defining problem objectives, developing questions hypotheses, selecting sample, survey instrument, pretesting survey, collecting data, analysing inte...