Table 1

- Demographic characteristics and ethnicity of the study population.

Variables	Total (n=2617)		*Improve (n=2106)		*Died (77)
Variables	n	%	n	%	n	%
Gender
Male	1748	66.8	1431	67.9	49	63.6
Female	869	33.2	675	32.1	28	36.4
P-value	0.0001		0.43
Age
≤40	801	30.6	652	31.0	8	10.4
41-59	1197	45.7	968	46.0	33	42.9
>60	619	23.7	486	23.0	36	46.8
P-value	0.0001		0.001
Nationality
^#Saudi	953	36.4	731	34.7†	34	44.2
Arabic	464	17.7	382	18.1†	5	6.5
^#South Asia	1064	40.7	879	41.7†	33	42.9
Southeast Asia	64	2.4	54	2.6	1	1.3
Africa	72	2.8	60	2.8	4	5.2
*P-value	0.04		0.03