A literature review of the problems of delayed presentation for treatment and non-completion of treatment for tuberculosis in less developed countries and ways of addressing these problems using particular implementations of the DOTS strategy.

Abstract

Tuberculosis is the cause of a large burden of disease in less developed countries. With the development of drug resistance and the co-epidemic of HIV, tuberculosis has already started to make a comeback in wealthier countries. The WHO's solution to this global tuberculosis epidemic is the DOTS strategy, the implementation of which presents many problems. The two issues most common to the majority of locations are delay in presentation for treatment and non-completion of treatment. This review looks at the reasons for these problems in the less developed world, and addresses some solutions. The main reasons for delayed presentation are: a lack of understanding about TB; the stigma associated with the disease; the inaccessibility of treatment; and a preference for private practitioners. The main reasons for non-completion of treatment are: the stigma of the disease; a lack of information; dissatisfaction with the treatment and its delivery; and inaccessibility of treatment. Successful implementations of the DOTS strategy need to address all these issues. There is little evidence that DOT enhances treatment completion unless combined with other strategies. Community-based, patient-orientated DOTS appears to be an appropriate way of addressing many of these issues. The involvement of volunteers in community-based strategies is common, but needs more research in order for this strategy to realise its full potential.