Table 2

Summary statistics for outcome and independent variables (2019 or latest figure)

Variable	Year	N	Mean	SD	Min	Max
Outcome
Total spending on PHC per capita (US$)	Latest	102	464.13	757.39	10.55	3520.16
Government spending on PHC per capita (US$)	Latest	102	285.77	520.11	1.01	2192.57
Government spending on PHC as a share of total government health spending	Latest	102	35.15	13.01	7.72	72.78
Economic factors
GDP per capita (US$)	2019	102	15 048.11	22 155.85	374.67	115 826.10
Government health spending as % of government spending	2019	102	10.02	4.73	2.11	24.21
Tax revenue including social contribution as % of GDP	2019	102	21.10	10.69	0.00	46.60
Social factors
% of young population (<15 years)	2019	102	62.73	6.53	47.56	84.88
% of population >65 years	2019	102	8.88	6.63	1.16	28.00
% Urban population	2019	102	55.63	22.77	16.52	99.19
Gini coefficient (latest figure)	Latest	102	37.86	10.42	24.60	99.70
Ethnic Fractionalisation Index	2013	90	0.49	0.26	0.02	0.89
Population density (population per square kilometre area)	2019	102	126.57	130.24	2.97	623.30
Gender Inequality Index	2021	95	0.35	0.20	0.03	0.68
Social Capital Index	2019	96	53.40	10.53	22.50	81.42
Political factors
Control of corruption	2019	102	0.04	1.01	−1.77	2.16
Rule of law	2019	102	0.05	0.99	−1.97	2.06
Regulatory quality	2019	102	0.05	0.95	−2.05	1.87
Government effectiveness	2019	102	0.04	1.01	−2.45	2.01
Political stability and absence of violence/terrorism	2019	102	−0.07	0.92	−2.66	1.64
Voice and accountability	2019	102	0.00	0.95	−1.99	1.66
POLITY regime measure	2018	96	4.72	5.80	−10.00	10.00
Government Closeness/Decentralisation Index	2012	98	2.63	5.36	0.00	34.03
Liberal Democracy Index	2019	99	0.44	0.26	0.05	0.89