Table 2.

Participants knowledge according to demographic variables

Demographic	Groups	Estimate (%)	Participants knowledge
			OR	95% CI		P-value
				Lower	Upper
Gender	Male	88 (46.3)	Ref.
	Female	186 (43.9)	0.91	0.64	1.28	0.57
Age	18–22	78 (40.8)	Ref.
	23–26	110 (46.6)	1.27	0.86	1.86	0.23
	27–30	60 (45.8)	1.22	0.78	1.92	0.38
	31–36	15 (50)	1.45	0.67	3.13	0.35
	≥ 37	11 (42.3)	1.06	0.46	2.44	0.89
Nationality	Emirati	58 (42.6)	Ref.
	African	61 (44.9)	1.09	0.68	1.77	0.71
	Western	44 (36.4)	0.77	0.46	1.27	0.30
	Asian	82 (47.7)	1.23	0.78	1.93	0.38
	Arabic	29 (59.2)	1.95	1.01	3.78	0.05
Education	Primary school/elementary	45 (38.1)	Ref.
	Secondary education	84 (43.1)	1.23	0.77	1.96	0.39
	Diploma	65 (40.1)	1.09	0.67	1.77	0.74
	University degree	27 (40.9)	1.12	0.61	2.08	0.71
	Post-graduate degree	53 (72.6)	4.29	2.28	8.11	< 0.001*
Employment	Student	64 (43.0)	Ref.
	Unemployed	48 (40.0)	0.88	0.54	1.44	0.63
	Employee in non-health sector	62 (38.0)	0.82	0.512	1.28	0.38
	Employee in health sector	100 (54.9)	1.62	1.05	2.51	0.03*
Do you have any chronic diseases	Yes	33 (45.8)	1.06	0.65	1.73	0.83
	No	241(44.5)	Ref.
Do you have any of your relatives who infected with the Covid-19	Yes	116 (50.4)	1.46	1.05	2.02	0.025*
	No	158 (41.1)	Ref.
Have you ever infected with Covid-19	Yes	61 (61)	2.21	1.43	3.43	< 0.001*
	No	213 (41.4)	Ref.
Have you received first two doses of the COVID-19 vaccine	Yes	230 (48.6)	2.08	1.40	3.11	< 0.001*
	No	44 (31.2)	Ref.
Have you admitted to hospital due to COVID-19 symptoms	Yes	43 (68.3)	2.98	1.71	5.19	< 0.001*
	No	231 (41.9)	Ref.

P-values less than 0.05 were considered statistically significant, OR, odds ratio; CI, confidence interval