Table 2.

Multivariable logistic regressions of PLR using linear spline function

Variables	Crude OR	95% CI	P value	Adjusted OR	95% CI	P value
PLR (≤200)	0.997	0.996 to 0.998	<0.001	0.9993	0.9980 to 1.0006	0.319
PLR (>200)	1.0002	1.0001 to 1.0004	0.001	1.0002	1.0000 to 1.0003	0.025
Age (>65 years)	1.77	1.56 to 2.11	<0.001	2.32	1.99 to 2.64	<0.001
Maximum SOFA	1.20	1.18 to 1.22	<0.001	1.18	1.16 to 1.20	<0.001
Urinary infection	0.66	0.57 to 0.76	<0.001	0.65	0.56 to 0.76	<0.001
Respiratory infection	1.29	1.13 to 1.47	<0.001	1.25	1.09 to 1.45	0.002
Blood infection	2.14	1.89 to 2.42	<0.001	1.49	1.29 to 1.71	<0.001
Fluid balance (mL/kg/48 hours)	1.006	1.005 to 1.007	<0.001	1.002	1.0008 to 1.0031	0.001
MICU	1.34	1.15 to 1.56	<0.001	1.15	0.97 to 1.37	0.089
CCU/CSRU	1.22	1.01 to 1.47	0.032	1.03	0.84 to 1.26	0.752

The mean variance inflation factor was 2.89, and p value of goodness of fit was 0.632.

CCU, coronary care unit; CSRU, cardiac surgery care unit; MICU, multiple intensive care unit; PLR, platelet-to-lymphocyte ratio; SOFA, Sequential Organ Failure Assessment.