Table 3.

Final Multivariable Model to Predict MAP Change Over Time

Variables	Coefficient	SE	p	95% Confidence Interval
Support duration, before 8 days (per 1 day increase)	1.136	0.285	<0.001	0.577–1.695
Support duration, after 8 days (per 1 day increase)	–2.175	0.513	<0.001	–3.180 to –1.169
Baseline MAP (per 1 mmHg increase)	–0.843	0.040	<0.001	–0.921 to –0.765
Baseline heart rate (per 1 bpm increase)	–0.086	0.030	0.005	–0.145 to –0.026
Pressor use during IABP	–3.986	0.867	<0.001	–5.685 to –2.286
Inotrope use during IABP	–2.209	0.935	0.018	–4.042 to –0.376
Constant	81.537	5.578	<0.001	70.604–92.470

IABP, intra-aortic balloon pump; MAP, mean arterial pressure; SE, standard error.