Malawi's health system runs mostly on donor funding and household out-of-pocket payments — government contributes under 10% of total health spending. This tracks where the money actually comes from, and models the share of households pushed into catastrophic health spending at different cost thresholds, using the same purchasing-power lens applied to the Kwacha tracker.
-- Classify households against a given -- threshold of non-food expenditure WITH household_ratios AS ( SELECT household_id, region, health_expenditure, nonfood_expenditure, health_expenditure / NULLIF(nonfood_expenditure, 0) AS health_share FROM household_survey ) SELECT region, COUNT(*) AS total_households, SUM(CASE WHEN health_share > 0.10 THEN 1 ELSE 0 END) AS above_10pct, SUM(CASE WHEN health_share > 0.40 THEN 1 ELSE 0 END) AS above_40pct FROM household_ratios GROUP BY region;
# Fit incidence(threshold) = a * exp(-b * x) # using the two confirmed survey anchors anchors <- data.frame( threshold = c(10, 40), incidence = c(9.37, 0.73) ) b <- log(anchors$incidence[1] / anchors$incidence[2]) / (anchors$threshold[2] - anchors$threshold[1]) a <- anchors$incidence[1] / exp(-b * anchors$threshold[1]) catastrophic_incidence <- function(threshold_pct) { a * exp(-b * threshold_pct) } # catastrophic_incidence(20) -> ~4.0%
Government health spending share (9.3% in 2012, 9.4% in 2019) and the historical 2005/06 financing mix (government 21.6%, external donors 60.7%, private 18.2%, of which out-of-pocket accounted for 12.1 percentage points) are drawn from published National Health Accounts research and Oxford Health Policy and Planning journal analysis. Catastrophic expenditure figures (1.37% national incidence, 1.6% impoverished, 52%+ average overshoot) are from a peer-reviewed multilevel logistic regression study using Malawi's Integrated Household Survey. The 9.37%/0.73% threshold anchors are from a separate IHS-based catastrophic expenditure sensitivity analysis — the two studies use related but distinct methodologies, which is why the headline national figure (1.37%) and the 10%-threshold figure (9.37%) aren't directly comparable. Health and GDP per capita figures (2018–2023) are World Bank/WHO Global Health Expenditure Database series; 2018, 2019, and 2023 GDP figures are approximated between confirmed years and flagged accordingly.
Scope note: Every figure here is a population-level statistic from public household surveys and international databases. This tool does not collect, display, or infer any individual's health status, diagnosis, or personal medical information, and it is not a substitute for medical or financial advice. A natural next iteration — not yet built — would test whether kwacha devaluation correlates with rising landed costs for imported pharmaceuticals, extending the analysis from the Kwacha Forex tracker into this one.