Table 3:

Carotid anatomy by CTD

	CTD (n = 143)		Controls (n = 143)		OR (95% CI)	P
	No.	%	No.	%	OR (95% CI)	P
Any ICA tortuosity	63	44%	23	16%	4.11 (2.36–7.16)	<.001^{^a}
Bilateral	43	30%	15	10%	3.67 (1.93–6.98)	<.001^{^a}
Left	49	34%	21	15%	3.03 (1.70–5.40)	<.001^{^a}
Right	57	40%	17	12%	4.91 (2.68–9.01)	<.001^{^a}
Loop	30	21%	15	10%	2.27 (1.16–4.42)	.015^{^a}
Coil	33	23%	4	3%	10.43 (3.59–30.31)	<.001^{^a}
Kink	13	9%	10	7%	1.33 (0.56–3.14)	.51
Pathway alterations
Retrojugular	36	25%	29	20%	1.32 (0.76–2.31)	.32
Retropharyngeal	6	4%	5	3%	1.21 (0.36–4.05)	.76
Other
Any carotid FMD	5	3%	2	1%	2.55 (0.49–13.39)	.25
Any carotid atheromatous disease	7	5%	37	26%	0.15 (0.06–0.34)	<.001^{^a}