Table 4.

Multivariable logistic regression analyzing ICU mortality and the longest episode of hypotension below thresholds of 50 mmHg, 60 mmHg, 75 mmHg, and 80 mmHg

Parameter	MAP < 55 mmHg		MAP < 60 mmHg		MAP < 75 mmHg		MAP < 80 mmHg
	Pr > ChiSq	Odds Ratio	Pr > ChiSq	Odds Ratio	Pr > ChiSq	Odds Ratio	Pr > ChiSq	Odds Ratio
Longest episode with MAP below threshold (vs. never below), hours
> 0 to < 2	< 0.0001	1.71	< 0.0001	1.71	0.2556	1.70	0.5474	1.42
≥ 2 to < 4	< 0.0001	2.67	< 0.0001	1.99	0.2858	1.63	0.895	1.08
≥ 4 to < 6	< 0.0001	4.41	< 0.0001	3.50	0.1895	1.82	0.9018	1.07
≥ 6 to < 8	< 0.0001	12.06	< 0.0001	4.80	0.2362	1.72	0.8184	1.14
≥ 8 to < 10	< 0.0001	7.18	< 0.0001	5.65	0.0795	2.23	0.5034	1.46
≥ 10 to < 12	0.0008	5.68	< 0.0001	6.58	0.0788	2.25	0.7379	1.21
≥ 12 to < 16	< 0.0001	8.17	< 0.0001	7.50	0.1023	2.11	0.6686	1.27
≥ 16 to < 20	0.0084	7.30	< 0.0001	7.37	0.0135	3.13	0.5393	1.41
≥ 20	0.0004	6.73	< 0.0001	7.32	0.0035	3.75	0.1943	2.06