TABLE A1.

Differences in Out-of-Pocket expenditure by income and nationality.

	Mean	Std Error	95% CI
OOP expenditure on health Below median income Above median income OOP expenditure on Medicine Below median income Above median income
	485.440	8.006	469.746–501.135
	1009.990	23.800	963.336–1056.644
	257.996	4.617	248.946–267.045
	530.956	18.359	494.968–566.944
OOP expenditure on health Non-Saudi national Saudi national OOP expenditure on Medicine Non-Saudi national Saudi national
	425.829	12.155	402.003–449.655
	842.855	16.089	811.317–874.393
	206.659	6.707	193.512–219.806
	450.046	12.161	426.207–473.885

Note: median income in the sample is 8900 Saudi Riyals (Equivalent to US$ 2373,33).