Table 4.

Estimated effects on workflow times (from linear regression) of symptom-onset to presentation time after the protocol was changed to include patients presenting up to 24-h after onset.

Time from onset-ED		3–4.5 h	>4.5 h
Door-to-call time	β (95% CI)	−13.8 (−43.4 to 14.8)	27.4 (13.0 to 41.7)
	p	0.343	<0.001
Call-to-decision time	β (95% CI)	−14.5	6.9 (0.4 to 13.4)
		(−27.5 to −1.5)
	p	0.029	0.038
Decision-to-needle time	β (95% CI)	−0.4 (−18.5 to 17.8)	−1.4 (−13.1 to 10.2)
	p	0.967	0.809
Door-to-Image time	β (95% CI)	−13.7 (−42.8 to 15.4)	29.1 (14.5 to 43.6)
	p	0.356	<0.001

All estimates are relative to patients presenting within 3 h of symptom onset.