Loading metrics Open Access Peer-reviewed Research Article Purity Njagi , Jelena Arsenijevic, Wim Groot Purity Njagi, Jelena Arsenijevic, Wim Groot Published: December 29, 2020 https://doi.org/10.1371/journal.pone.0244428 Figures Abstract Background Catastrophic health expenditure (CHE) is frequently used as an indicator of financial protection. CHE exists when health expenditure exceeds a certain threshold of household consumption.