Table 3.

Relationship between MPV level and in-hospital mortality

In-hospital mortality	MPV > 11.4 fl group
	HR (95%CI)	P
Unadjusted	4.30 (2.223–8.317)	0.000
Model 1	4.245 (2.18–8.266)	0.000
Model 2	3.996 (1.862–8.578)	0.000
Model 3	2.640 (1.208–5.767)	0.015

Reference group is MPV ≤ 11.4 fl. Model 1: age and sex; Model 2: model 1 plus APACHE II score, PaO2/FIO2, vasopressor use, CRRT, CKD, AKI, septic shock; Model 3: model 2 plus albumin, creatinine, leukocyte, and CRP

MPV mean platelet volume; APACHE II acute physiology and chronic health evaluation II; CRP C-reactive protein; CRRT continuous renal replacement therapy; CKD chronic kidney disease; AKI acute kidney injury; PaO₂ arterial oxygen tension; FiO₂ fraction of inspired oxygen; HR hazard ratio; CI confidence interval