The economic burden of TB faced by patients and affected families in Papua New Guinea

BACKGROUND The costs associated with TB disease can be catastrophic for patients, affecting health and socioeconomic outcomes. Papua New Guinea (PNG) is a high TB burden country and the costs associated with TB are unknown.METHODS We undertook a national survey of TB patients to determine the magnitude of costs associated with TB in PNG, the proportion of households with catastrophic costs and cost drivers. We used a cluster sampling approach and recruited TB patients from health facilities. Descriptive statistics were used to analyse the costs and cost drivers and multivariate logistic regression to determine factors associated with catastrophic costs.RESULTS We interviewed 1,000 TB patients; 19 (1.9%) of them had multidrug-resistant TB (MDR-TB). Costs due to TB were attributable to income loss (64.4%), non-medical (29.9%) and medical (5.7%) expenses. Catastrophic costs were experienced by 33.9% (95% CI 31.0-36.9) of households and were associated with MDR-TB (aOR 4.47, 95% CI 1.21-16.50), hospitalization (aOR 3.94, 95% CI 2.69-5.77), being in the poorest (aOR 3.52, 95% CI 2.43-5.10) or middle wealth tertiles (aOR 1.51, 95% CI 1.03-2.21) or being employed (aOR 2.02, 95% CI 1.43-2.89).CONCLUSION The costs due to TB disease were catastrophic for one third of TB-affected households in PNG. Current support measures could be continued, while new cost mitigation interventions may be considered where needed.