Table 2

Comparison of the NIHSS scores before and after thrombolysis and the mRS score at 3 months after thrombolysis between the two groups

Group	NIHSS scores					mRS score (0–2) at 3 months, n (%)
Group	Before thrombolysis	2 hours after thrombolysis	24 hours after thrombolysis	7 days after thrombolysis	Before discharge	mRS score (0–2) at 3 months, n (%)
UTO group (n=42)	7.31±5.16	5.93±5.00*	5.48±8.02*	5.02±7.55*	4.19±6.77*	32 (76.19)
Control group (n=62)	7.53±6.75	6.97±7.35	6.08±7.48*	5.06±7.46*	3.18±4.36*	44 (70.96)
P values	0.857	0.426	0.695	0.978	0.355	0.556

mRS difference between the two groups was 5.2%, non-inferiority examination (90% CI −0.092 to 0.196).
*Intragroup comparison before thrombolysis, p<0.05.
mRS, modified Rankin Scale; NIHSS, National Institutes of Health Stroke Scale; UTO, unknown time of onset.