Table 3.

Multivariate predictors of any and obstructive CAD on CCTA among young patients

Variables	Any CAD			Obstructive CAD
	OR	95% CI	P-value	OR	95% CI	P-value
Male	2.06	1.50–2.82	<0.001	1.21	0.69–2.13	0.51
Age	1.11	1.08–1.14	<0.001	1.07	1.01–1.14	0.02
Diabetes	1.67	1.02–2.73	0.04	1.58	0.70–3.56	0.27
Dyslipidaemia	1.14	0.87–1.49	0.34	1.84	1.10–3.07	0.02
Current smoking	1.37	1.01–1.84	0.04	1.56	0.91–2.67	0.10
Family history of CAD	1.40	1.07–1.83	0.01	2.56	1.56–4.21	<0.001
Hypertension	1.40	1.07–1.84	0.02	1.82	1.10–3.03	0.02
Asymptomatic patients
Male	1.50	0.85–2.66	0.16	0.75	0.23–2.47	0.64
Age	1.14	1.08–1.21	<0.001	1.15	0.97–1.36	0.10
Diabetes	2.13	0.93–4.85	0.07	2.66	0.51–13.86	0.25
Dyslipidaemia	0.98	0.62–1.54	0.92	3.16	1.05–9.56	0.04
Current smoking	0.81	0.45–1.47	0.50	1.60	0.48–5.29	0.44
Family history of CAD	1.76	1.12–2.77	0.01	3.70	1.30–10.53	0.01
Hypertension	1.31	0.82–2.11	0.26	0.71	0.23–2.20	0.55
Symptomatic patients
Male	2.26	1.54–3.31	<0.001	1.50	0.79–2.87	0.22
Age	1.10	1.06–1.14	<0.001	1.06	1.00–1.13	0.06
Diabetes	1.47	0.79–2.76	0.23	1.44	0.56–3.70	0.45
Dyslipidaemia	1.19	0.86–1.67	0.30	1.54	0.85–2.76	0.15
Current smoking	1.69	1.18–2.41	0.004	1.50	0.82–2.76	0.19
Family history of CAD	1.27	0.91–1.78	0.16	2.31	1.30–4.10	0.004
Hypertension	1.48	1.06–2.08	0.02	2.46	1.37–4.43	0.003

CAD, coronary artery disease; CCTA, coronary CT angiography; OR, odds ratio; CI, confidence interval.