TABLE 3.

Association between four ferritin levels and mortality in MIMIC III (logistic regression).

Model	Mortality	Ferritin (ng/mL)
		<70 N = 208	≥70 and <500 N = 1007	≥500 and <1000 N = 332	≥1000 N = 192
Non-adjusted OR (95% CI) p-value	28 days	0.86 (0.58–1.28) 0.451	Ref.	1.19 (0.88–1.62) 0.247	2.17(1.55–3.04) <0.001
	90 days	0.81 (0.57–1.15) 0.241	Ref.	1.21 (0.92–1.59) 0.167	1.81(1.31–2.50) <0.001
Model 1 OR (95% CI) p-value	28 days	1.19 (0.77–1.85) 0.433	Ref.	1.08 (0.75–1.55) 0.688	1.87(1.25–2.79) 0.002
	90 days	0.93 (0.64–1.36) 0.717	Ref.	1.11 (0.83–1.50) 0.471	1.82(1.28–2.57) 0.001
Model 2 OR (95% CI) p-value	28 days	1.19 (0.76–1.85) 0.447	Ref.	1.06 (0.74–1.53) 0.752	1.91(1.28–2.86) 0.002
	90 days	0.93 (0.64–1.36) 0.725	Ref.	1.09 (0.81–1.46) 0.573	1.84(1.29–2.62) 0.001
Model 3 OR (95% CI) p-value	28 days	1.24 (0.79–1.96) 0.355	Ref.	0.97 (0.66–1.42) 0.861	1.76(1.14–2.72) 0.011
	90 days	1.01 (0.69–1.49) 0.946	Ref.	0.97 (0.71–1.32) 0.837	1.64(1.13–2.39) 0.009