TABLE 3.

Differences in means between the insured and the uninsured samples.

	Weighted			Unweighted
	(1)	(2)	(3)	(4)	(5)	(6)
	Insured	Uninsured	t-test	Insured	Uninsured	t-test
Income	12,308.140	11,077.910	1230.230***	12,308.140	10,387.100	1921.038***
Health OOP	609.900	805.090	−195.190***	609.900	693.110	−83.208**
Medicine OOP	404.850	389.570	15.286	404.850	350.270	54.582*
Saudi national	0.400	0.930	−0.523***	0.400	0.410	−0.009
Age	38.220	35.790	2.424***	38.220	39.450	−1.232
Male	0.610	0.490	0.122***	0.610	0.540	0.069***
Married	0.710	0.540	0.175***	0.710	0.690	0.021
Below primary school	0.232	0.125	0.108***	0.147	0.125	0.022*
Primary school	0.145	0.124	0.021**	0.145	0.124	0.021
Intermediate school	0.153	0.167	0.0138	0.181	0.167	0.014
Secondary school	0.305	0.315	0.0098	0.319	0.315	0.005
Higher education	0.270	0.165	0.105	0.270	0.208	0.062***
Health status	0.840	0.720	0.120	0.840	0.840	0.007
Wealth index a	0.470	−0.160	0.628***	0.470	0.440	0.025
Observations	2575	6080		2575	6080

Significance levels: *** p <0.01, ** p <0.05, * p <0.1.

^aThe wealth index reveals that insured individuals are wealthier than the uninsured. However, weighting removes the wealth differences between the insured and the uninsured.