Universal health coverage means that everyone can use the quality health services they need, from prevention and treatment to rehabilitation and palliative care, without being pushed into financial hardship by the cost. By this measure the world is still far from the goal. In 2023 about 4.6 billion people, some 57% of the global population, were not fully covered by essential health services. In 2022 about 2.1 billion people lived in households that faced financial hardship because of what they paid out of pocket for health care, and 1.6 billion of them were already poor or were pushed deeper into poverty by those payments.
The burden falls hardest on the poorest. In 2022, three out of four people in the poorest segment of the population faced financial hardship from health costs, compared with fewer than one in 25 among the richest. Low-income countries scored 47 out of 100 on the service coverage index in 2023, against 85 in high-income countries. Medicines make up the largest part of what households pay themselves, and many countries do not have enough health workers: WHO projects a global shortfall of 11.1 million by 2030. Since 2023, steep cuts to international health aid have added pressure on health budgets in many low- and middle-income countries.
How universal health coverage is measured
SDG target 3.8 is tracked by WHO and the World Bank with two indicators, both revised in 2025. The revised financial hardship figures are not directly comparable with those in earlier reports. The main measures are:
Service coverage index (SDG 3.8.1)
A score from 0 to 100 that combines tracer indicators for reproductive, maternal, newborn and child health, infectious diseases, noncommunicable diseases, and service capacity and access. Many of its indicators record whether people are in contact with a service, not whether the care they received was of sufficient quality.
Financial hardship (SDG 3.8.2)
The share of people living in households whose out-of-pocket health spending exceeds 40% of their discretionary budget, meaning what is left after basic needs such as food and housing. It replaced the earlier measure based on spending above 10% or 25% of the household budget.
Impoverishing and large spending
Hardship is split into impoverishing spending, which leaves a household without enough for basic needs or deeper in poverty, and large spending, which takes a big share of the budget without pushing people into poverty.
Data sources and gaps
Service coverage combines administrative data, surveys and modelled estimates for 195 countries and territories. Hardship estimates come from more than 1,100 household surveys in 168 countries and territories, and values for the pandemic years 2020–2021 are interpolated or modelled because many surveys were interrupted.