Table 2.

The association between the occurrence of swirl sign and death at one month and the functional outcome according to mRS

		Swirl sign		OR (95% CI)	p-value
		Negative	Positive
Death one month*	Yes	29 (44)	37 (56)
	No	112 (82)	24 (18)	0.2 (0.1-0.3)	< 0.001
mRS**	Favorable	69 (86)	11 (14)
	Unfavorable	60 (56)	48 (44)	5 (2.3-11.3)	< 0.001

Figures between parenthesis are percentage.

* The number of the missing data is 1 patient. ** The number of the missing data is 15 patients.

mRS Modified Rankin Scale, favorable outcome: mRS ≤ 3, unfavorable outcome: mRS ≥ 4.

OR Odds ratio. 95%, CI 95% confidence interval.