Table 5. Predictors of good knowledge about CPR.

*Statistically significant

CPR: cardiopulmonary resuscitation

Variables		Knowledge
		Inadequate		Adequate
		N	%	N	%	OR (95% CI)	P-value
Gender	Male	138	76.7%	42	23.3%	Reference
	Female	168	72.7%	63	27.3%	1.23 (0.79–1.93)	0.370
Age (years)	18–29	82	64.6%	45	35.4%	2.06 (0.64–6.57)	0.225
	30–39	44	73.3%	16	26.7%	1.36 (0.39–4.72)	0.637
	40–49	112	83.0%	23	17.0%	0.77 (0.23–2.53)	0.126
	50–59	53	75.7%	17	24.3%	1.20 (0.35–4.12)	0.781
	>59	15	78.9%	4	21.1%	Reference
Educational level	Primary or lower	1	50.0%	1	50.0%	3.42 (0.21–55.41)	0.394
	Middle school	8	50.0%	8	50.0%	3.42 (1.24–9.44)	0.017*
	High school	54	68.4%	25	31.6%	1.58 (0.92–2.73)	0.096
	College or higher	243	77.4%	71	22.6%	Reference
Current residence	City	210	75.8%	67	24.2%	0.81 (0.51–1.28)	0.138
	Governorate town/village	96	71.6%	38	28.4%	Reference
Total household income (Saudi Riyal)	<10,000	79	67.5%	38	32.5%	Reference
	10,000–20,000	144	76.2%	45	23.8%	0.65 (0.39–1.08)	0.105
	>20,000	83	79.0%	22	21.0%	0.55 (0.30–1.01)	0.855
Relationship between you and the patient with heart disease	Father	104	75.4%	34	24.6%	0.46 (0.22–0.96)	0.742
	Uncle/aunt	65	71.4%	26	28.6%	0.56 (0.26–1.22)	0.117
	Sibling	41	70.7%	17	29.3%	0.59 (0.25–1.36)	0.127
	Children	57	93.4%	4	6.6%	0.1 (0.03–0.33)	0.036*
	Wife	15	68.2%	7	31.8%	0.66 (0.22–1.96)	0.135
	Friend	24	58.5%	17	41.5%	Reference
How many times has your family member visited the hospital in the last year (for heart disease)?	1	84	68.3%	39	31.7%	1.51 (0.8–2.83)	0.201
	2–3	146	77.7%	42	22.3%	0.93 (0.50–1.72)	0.142
	>3	65	76.5%	20	23.5%	Reference
How many heart surgeries has your family member undergone (for heart disease)?	0	24	70.6%	10	29.4%	0.92 (0.40–2.12)	0.131
	1	133	78.7%	36	21.3%	0.6 (0.34–1.02)	0.875
	2–3	60	77.9%	17	22.1%	0.63 (0.32–1.21)	0.214
	>3	5	55.6%	4	44.4%	1.77 (0.45–6.96)	0.424
	Unclear	84	68.9%	38	31.1%	Reference
Have you participated in CPR training?	No	253	76.9%	76	23.1%	Reference
	Yes	53	64.6%	29	35.4%	1.82 (1.08–3.06)	0.023*