ArticleBMJ global health2026
Cost-effectiveness of in-kind nutritional support for impoverished persons with tuberculosis to reduce mortality and disengagement from care in India: a modelling study.
Article in BMJ global health, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundUndernutrition is a leading risk factor for tuberculosis (TB) mortality and poor treatment outcomes. We evaluated the cost-effectiveness of providing in-kind nutritional support to impoverished persons with TB (PWTB) in India.
methodsWe developed a Markov model comparing standard care with a household-level nutritional food-basket intervention. Model parameters were informed from systematic reviews and a recent cluster-randomised study. We estimated TB mortality, disability-adjusted life years (DALYs) and costs from the healthcare perspective. We calculated incremental cost-effectiveness ratios (ICERs), and parameter uncertainty was quantified through deterministic and probabilistic sensitivity analyses. We estimated uncertainty intervals (UIs) with 10 000 Monte Carlo iterations.
findingsNutritional support was projected to avert 10 470 DALYs per 10 000 PWTB (95% UI 1 775 to 33 255). When scaled to India's 2.8 million annual TB cases, this corresponds to approximately 120 120 TB deaths averted nationwide (95% UI 60 760 to 162 960) under full coverage. The ICER was US$141 per DALY averted (95% UI US$44 to 836). The ICER was most sensitive to the mortality reduction achieved through nutritional support but remained below India's willingness-to-pay threshold (US$550 per DALY averted) as long as the intervention achieved at least a 13% relative reduction in mortality. Nutritional support was cost-effective in 94% of simulations.
interpretationIn-kind nutritional support for PWTB is highly cost-effective and could substantially reduce TB mortality and disengagement from care. Scaling up such interventions could meaningfully improve TB outcomes nationwide and accelerate progress towards the end TB strategy targets.
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