Table 3. Knowledge score differences based on each variable.

CI: confidence interval; SAR: Saudi Riyal

Sociodemographic factors	ß (95% CI)	P-value
Gender
Male	1.00 (Reference)
Female	0.41 (0.13, 0.69)	0.005
Nationality
Saudi	1.00 (Reference)
Non-Saudi	-0.25 (-0.73, 0.24)	0.323
Age, years
<20	1.00 (Reference)
20–29	0.39 (0.15, 0.63)	0.002
30–39	-0.20 (-0.53, 0.12)	0.216
40–49	-0.32 (-0.812, 0.18)	0.208
50–59	0.02 (-0.61, 0.64)	0.957
>60	-0.16 (-1.14, 0.82)	0.747
Monthly income, SAR
<5000	1.00 (Reference)
5,000–10,000	0.12 (-0.14, 0.37)	0.369
10,000–20,000	0.27 (-0.08, 0.61)	0.126
20,000–30,000	-0.09 (-0.67, 0.48)	0.750
30,000–40,000	-0.38 (-1.20, 0.43)	0.357
>40,000	0.13 (-0.56, 0.83)	0.706
Residence
North Riyadh	1.00 (Reference)
South Riyadh	-0.06 (-0.40, 0.28)	0.733
Eastern Riyadh	0.22 (-0.04, 0.47)	0.098
Western Riyadh	-0.12 (-0.46, 0.22)	0.490
Middle Riyadh	0.17 (-0.13, 0.47)	0.272