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. 2026 Jun 16;6:1808077. doi: 10.3389/frhs.2026.1808077

Table 2.

Summary statistics of variables (2000–2023, N = 135 LMICs).

Variable Mean SD Min Max
Outcome Variables
UHC Service Coverage Index 58.3 18.2 22.1 89.4
Catastrophic Health Expenditure (% households) 11.5 9.8 0.8 45.2
Under-5 Mortality Rate (per 1,000 live births) 48.7 37.9 2.1 149.3
Life Expectancy at Birth (years) 68.2 8.4 45.3 79.8
Healthy Life Expectancy (years) 59.1 7.9 40.2 72.1
Health Financing
Government Health Expenditure per capita (2017 USD) 186.5 245.3 8.2 1,245.7
Government Health Expenditure (% of GDP) 3.2 1.8 0.5 8.9
Out-of-pocket Health Expenditure (% of THE) 34.2 18.7 5.1 78.4
Social Health Insurance Coverage (% population) 28.7 24.9 0.0 95.3
Health Workforce
Physician Density (per 10,000) 12.4 14.2 0.2 58.7
Nurse/Midwife Density (per 10,000) 24.8 28.5 1.1 112.4
Community Health Worker Density (per 10,000) 5.3 7.8 0.0 42.1
Governance
Government Effectiveness Index −0.38 0.65 −1.88 1.45
Control of Corruption Index −0.42 0.61 −1.76 1.52
Digital Health
Digital Health Adoption Index (0–100) 42.7 21.5 8.2 89.4
Internet Users (% population) 38.9 24.7 0.3 95.2
Service Delivery
Hospital Beds (per 10,000) 19.8 18.4 0.8 84.2
PHC Facility Density (per 100,000) 8.7 7.2 0.5 42.8
Essential Medicines Availability (%) 68.4 22.5 18.7 97.3
Control Variables
GDP per capita (log, 2017 USD) 7.82 1.14 5.91 10.47
Gini Coefficient 42.3 8.7 25.1 63.4
Female Education (mean years) 6.8 3.2 1.2 13.4
Urbanization Rate (%) 51.7 20.4 12.8 91.2

Source: WHO Statistical data. All monetary values in constant 2017 USD. THE, total health expenditure; SD, standard deviation. N = 3,240 country-year observations (135 countries  ×  24 years).

All monetary variables were converted to constant 2017 USD using GDP deflators from the World Bank (66) and IMF (67) to ensure cross-country and temporal comparability (66, 67).