A randomised controlled clinical trial of the efficacy of family-based direct observation of anti-tuberculosis treatment in an urban, developed-country setting
METHODS: TB patients seen in Victoria, Australia, were randomly allocated to DOT observed by a family member (FDOT), or to standard supervised but non-observed therapy (ST). The outcome measure was compliance, measured by blinded testing of isoniazid levels in urine. An intention-to-treat analysis was used.
RESULTS: Of 173 patients, 87 were allocated to FDOT and 86 to ST. Only 58% in the FDOT group were able to receive FDOT, the major reason being living alone and not having a family member to observe treatment. The rate of non-compliance was 24% (41/173), with no significant difference between FDOT (22/87) and ST (19/86). No clinical or socio-demographic variable predicted compliance.
CONCLUSIONS: We were unable to demonstrate a benefit of FDOT in an urban, industrialised country setting. FDOT may be more appropriate in developing countries, where extended family support is often available and the burden of TB is much higher. Poor compliance and the difficulty in predicting non-compliance shown in this study highlights the need for DOT for all TB patients.
Document Type: Regular Paper
Affiliations: 1: ChildrenÕs Hospital at Westmead, National Centre for Immunisation Research and Surveillance of Vaccine Preventable Diseases, Westmead, NSW, Australia; and Victorian Infectious Diseases Service, Royal Melbourne Hospital, Melbourne, Australia 2: Victorian Infectious Diseases Service, Royal Melbourne Hospital, Melbourne, Australia; and Department of Human Services, Victoria TB Program, Melbourne, Australia 3: Victorian Infectious Diseases Service, Royal Melbourne Hospital, Melbourne, Australia 4: Department of Human Services, Victoria TB Program, Melbourne, Australia; and Epidemiology & Biostatistics Unit, Royal ChildrenÕs Hospital, Melbourne, Australia 5: Department of Infectious Diseases, Royal ChildrenÕs Hospital, Melbourne, Australia 6: Special Chemistry Unit, Royal Melbourne Hospital, Melbourne, Victoria, Australia
Publication date: 2003-09-01
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