Table 2.

Predictors of total score in a multivariate linear regression model.

Variable	Characteristic	Estimate	Standard error	95 % CI	P value
Country [Ref: Saudi]	Kuwait	2.847	1.980	−1.08 to 6.78	0.1537
Age [Ref: ≤ 20 years]	21 – 30	1.027	3.510	−5.94 to 7.99	0.7705
	31 – 40	−0.7173	3.684	−8.03 to 6.59	0.8460
	41 – 50	1.952	3.909	−5.81 to 9.71	0.6186
	51 – 60	−0.9243	5.344	−11.53 to 9.68	0.8630
Educational Attainment [Ref: school]	University graduates	2.594	2.088	−1.55 to 6.74	0.2172
Occupation [Ref: non-HCW]	Healthcare worker	2.155	3.174	−4.14 to 8.45	0.4988
Hearing impairment [Ref: no impairment]	Mild	−3.175	5.084	−13.26 to 6.92	0.5338
	Moderate and above	−4.669	2.183	−9.00 to −0.34	0.0349*
Communication mode [Ref: oral communication]	Oral and sign language	−2.143	2.075	−6.26 to 1.98	0.3043
	Sign language only	−7.570	3.169	−13.86 to −1.28	0.0188*