OR (95% CI)	Adjusted OR [95% CI]	P value
Age
< 30	1	1
(30-39)	1.41 (1.31-1.51)**	1.15 (1.09-1.22)**	P<0.001
(40-49)	1.43 (1.32-1.55)**	1.27 (1.18-1.35)**	P<0.001
≥ 50	0.7 (0.65-0.75)**	0.81 (0.75-0.88)**	P<0.001
Gender
Female	1	1
Male	0.96 (0.91-1.01) *	1.04 (0.99-1.09)*	P=0.065
Nationality
Other Nationalities	1	1
Qatari	0.79 (0.65-0.77)**	0.72 (0.67-0.79)**	P<0.001
Sri Lankan	3.09 (2.58-3.70)**	2.54 (2.21-3.04)**	P<0.001
Filipino	3.14 (2.89-3.42)**	2.61 (2.39-2.86)**	P<0.001
Nepalese	2.20 (1.80-2.69)**	2.03 (1.68-2.45)**	P<0.001
Iranian	1.85 (1.49-2.30)**	1.94 (1.58-2.39)**	P<0.001
Indian	1.75 (1.63-1.88)**	1.58 (1.27-1.97)**	P<0.001
Syrian	1.44 (1.21-1.71)**	1.44 (1.33-1.55)**	P<0.001
Palestinian	1.33 (0.92-1.66)*	1.35 (0.93-1.69)*	P=0.152
Pakistani	1.46 (1.28-1.67)**	1.36 (1.19-1.55)**	P<0.001
Testing Geographical Region
Northern	1	1
Western	2.07 (1.9-2.26)**	1.86 (1.68-2.07)**	P<0.001
Central	4.18 (3.84-4.55)**	3.37 (3.05-3.73)**	P<0.001
Comorbid conditions
None	1	1
One chronic condition	0.87 (0.83-0.97)**	1.05 (0.99-1.13)*	P=0.056
Two or more conditions	0.58 (0.54-0.62)**	0.87 (0.81-0.94)**