Table 5.

Acute stroke severity subgroup analysis.

Acute stroke severity group		Excessive/ low	Excessive/ expected	Expected/ low
Mild (n = 666)	OR	0.45	0.58	0.76
	p, 95% CI	<0.01 (0.26, 0.78)	0.01 (0.38, 0.89)	0.25 (0.48, 1.21)
Severe (n = 224)	OR	0.23	0.57	0.40
	p, 95% CI	<0.01 (0.08, 0.65)	0.21 (0.23, 1.39)	0.02 (0.18, 0.86)

The odds ratios of patients who achieved full functional independence (mRS excellent: mRS scores 0–1) of the excessive uWMH burden groups to the low (excessive/low) and expected (excessive/expected) groups and of the expected group to the low (expected/low) group in the mild acute stroke severity group (mild, NIHSS < 7) and the severe acute stroke severity group (severe, NIHSS ≥ 7).