Table 1.

Modified Rankin scale according to admission systolic blood pressure.

	SBP < 150 (n = 260)	SBP ⩾ 150 (n = 277)	SBP < 150 a(c)OR (95% CI)*	SBP ⩾ 150 a(c)OR (95% CI)*	p-Value for interaction †
mRS score at 90 days, shift analysis towards poor outcome – median (IQR)	2 (2–4)	2 (2–5)	1.14 (0.99–1.30)	1.23 (1.09–1.38)	0.94
mRS score 0–2 at 90 d – n (%)	139 (53%)	130 (47%)	0.89 (0.75–1.06)	0.82 (0.70–0.96)	0.91

mRS = modified Rankin Scale; SBP = systolic blood pressure.

^*For nonlinear models (ordinal mRS and mRS 0–2; p-values for likelihood ratio test comparing linear SBP term with restricted cubic spline transformation allowing 3 knot for SBP were respectively 0.001 and 0.016), regression analyses were performed using the nadir value of the model as a reference point, to estimate the effects of lower and higher ranges of BPs on outcomes. For SBP < 150 mmHg, adjusted (common) ORs and 95% CIs are given per 10 mmHg decrement in SBP and for SBP > 150 mmHg per 10 mmHg increment in SBP.

^†SBP*prior IVT.