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For more information, please see SDG 3.8.2 metadata description, section 4.a.
The discretionary household budget is defined as total household consumption expenditure or income minus the societal poverty line (SPL). The societal poverty line is the higher of two thresholds: an absolute floor corresponding to the international poverty line or a higher country-specific value. The SPL is expressed in purchasing power parities (PPPs) (see the following section “Method of estimation”).
This definition was adopted in March 2025 as part of the 2025 SDG Comprehensive Review Process.
The indicator includes two components:
- Impoverishing OOP health spending: proportion of the population whose OOP health spending exceeds 100% of discretionary budget. Such spending is incurred either by people living in poverty, who have no discretionary budget even before accounting for health spending, or by people who have no discretionary budget after OOP health payments are made. In both cases, these individuals cannot afford basic needs.
- Large (but not impoverishing) OOP health spending: proportion of the population whose OOP health spending exceeds 40% but remains below 100% of their discretionary budget. This spending does not compromise the ability to meet basic needs but substantially reduces the ability to consume other goods and services.
To identify impoverishing OOP health spending, replace 40% in the above definition by 100%.
To identify large OOP health spending, take the difference between the proportion of individuals facing financial hardship and the proportion of individuals facing impoverishing OOP health spending.
The discretionary household budget corresponds to the daily per capita total household consumption expenditure or income minus the societal poverty line (SPL). Using 2017 purchasing power parities (PPPs), SPL = max ($2.15 a day per day; $1.15 a day per day + 50% of median daily total household consumption expenditure or income (net of daily per capita OOP health spending). For more information, see SDG 3.8.2 metadata description, section 4.c.
In some instances, estimates are produced by the WHO and/or the World Bank, in consultation with, or independently of, national counterparts. For more information on adjustments, harmonization procedures, quality assessment and validation, please see SDG 3.8.2 metadata description, sections 3.b, 4.d to 4.k.
To compute regional and global aggregates for a common reference year, survey-based country estimates are first “lined-up” using a combination of interpolation/extrapolation (when there are at least two survey-based estimates available around the reference year); econometric modelling (one survey-based estimate available around the reference year); and imputation based on regional medians (no survey-based estimates available around the reference year) (see also SDG 3.8.2 metadata description, sections 4.f and 4.g).
Some people seeking care face barriers to access due to financial constraints, acceptability issues, service unavailability, or accessibility. Those unable to overcome such barriers (financial and nonfinancial) will not report any health spending, thereby reducing the indicator’s rate.
For other limitations inherited from the previous SDG 3.8.2 definition, please see section 4.b in the SDG 3.8.2 metadata description. On comparability/deviation from international standards, see section 6 in the SDG 3.8.2 metadata description.