Patient- and provider-level risk factors associated with default from tuberculosis treatment, South Africa, 2002: a case-control study

BMC Public Health

Martie van der Walt³  Abe Miranda¹  Karin Weyer²  Timothy H Holtz¹  Joey Lancaster³  Alyssa Finlay¹ 

[1] Division of Tuberculosis Elimination, Centers for Disease Control and Prevention, 1600 Clifton Road NE, Atlanta, GA 30333, USA;Stop TB Department, World Health Organization, 20 Avenue Appia, CH-1211 Geneva 27, Switzerland;Tuberculosis Epidemiology and Intervention Research Unit, Medical Research Council, 1 Soutpansberg Road, Pretoria 0001, South Africa

关键词: South Africa;    non-adherence;    treatment default;    Tuberculosis;   

Others  :  1163918
DOI  :  10.1186/1471-2458-12-56

 received in 2011-08-22, accepted in 2012-01-20,  发布年份 2012

【 摘 要 】

Background

Persons who default from tuberculosis treatment are at risk for clinical deterioration and complications including worsening drug resistance and death. Our objective was to identify risk factors associated with tuberculosis (TB) treatment default in South Africa.

Methods

We conducted a national retrospective case control study to identify factors associated with treatment default using program data from 2002 and a standardized patient questionnaire. We defined default as interrupting TB treatment for two or more consecutive months during treatment. Cases were a sample of registered TB patients receiving treatment under DOTS that defaulted from treatment. Controls were those who began therapy and were cured, completed or failed treatment. Two respective multivariable models were constructed, stratified by history of TB treatment (new and re-treatment patients), to identify independent risk factors associated with default.

Results

The sample included 3165 TB patients from 8 provinces; 1164 were traceable and interviewed (232 cases and 932 controls). Significant risk factors associated with default among both groups included poor health care worker attitude (new: AOR 2.1, 95% CI 1.1-4.4; re-treatment: AOR 12, 95% CI 2.2-66.0) and changing residence during TB treatment (new: AOR 2.0, 95% CI 1.1-3.7; re-treatment: AOR 3.4, 95% CI 1.1-9.9). Among new patients, cases were more likely than controls to report having no formal education (AOR 2.3, 95% CI 1.2-4.2), feeling ashamed to have TB (AOR 2.0, 95% CI 1.3-3.0), not receiving adequate counseling about their treatment (AOR 1.9, 95% CI 1.2-2.8), drinking any alcohol during TB treatment (AOR 1.9, 95% CI 1.2-3.0), and seeing a traditional healer during TB treatment (AOR 1.9, 95% CI 1.1-3.4). Among re-treatment patients, risk factors included stopping TB treatment because they felt better (AOR 21, 95% CI 5.2-84), having a previous history of TB treatment default (AOR 6.4, 95% CI 2.9-14), and feeling that food provisions might have helped them finish treatment (AOR 5.0, 95% CI 1.3-19).

Conclusions

Risk factors for default differ between new and re-treatment TB patients in South Africa. Addressing default in both populations with targeted interventions is critical to overall program success.

【 授权许可】

   
2011 Finlay et al; licensee BioMed Central Ltd.

【 图 表 】

Figure 1.

Figure 2.

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