Table 1.

Summary of clinical and laboratory variables used.

Binary
Variable	Total	Non-ICU	ICU
Sex	F = 166 M = 392	F = 121 M = 259	F = 45 M = 133
Diabetes	Y = 131 N = 427	Y = 80 N = 300	Y = 51 N = 127
Hypertension	Y = 255 N = 303	Y = 165 N = 215	Y = 90 N = 88
Cardiovascular Disease	Y = 263 N = 295	Y = 164 N = 216	Y = 99 N = 79
Oncological (last 5 yrs)	Y = 41 N = 517	Y = 33 N = 347	Y = 8 N = 170

Numerical
Variable	Measure Unit	Median	Median: Non-ICU	Median: ICU	Reference range
Age	yrs	66	64	69
Body Mass Index (BMI)		26	25.9	26
Body Temperature	°C	37.5	37.4	37.7	< 37
Heart Rate (HR)	bpm	92	92	90	60–100
Diastolic Blood Pressure (DBP)	mmHg	76	77	75	60–80
Systolic Blood Pressure (SBP)	mmHg	127	127	127	90–120
Arterial blood gas analysis
${\mathrm{pCO}}_2$	mmHg	36	35	39	35–48
${\mathrm{HCO}}_3$	mmol/L	25.4	25.4	25.4	21–28
${\mathrm{PaO}}_2/{\mathrm{FiO}}_2$	mmHg	255	277	134	$\ge$ 300
Lactate (LAC)	mmol/L	1.1	1.0	1.3	0.5–1.6
SO${}_2$	%	94	94.5	91.8	95–99
Complete blood count
White Blood Cell Count (WBC)	$\times {10}^9/L$	7	6.6	8.3	4.5–10
Red Blood Cell Count (RBC)	$\times {10}^{12}/L$	4.3	4.4	4.3	4.2–6.3
Hemoglobin (Hb)	g/dL	13.1	13.2	13	14–18
Hematocrit (HCT)	%	39.8	39.8	39.6	40–52
Red Blood Cell Distribution Width (RDW)	%	12.3	12.1	12.6	10.6–13.8
Granulocyte Neutrophils %	%	78	75	84.7	41–70
Granulocyte Eosinophils %	%	0.2	0.2	0.2	1–5
Granulocyte Basophils %	%	0.2	0.3	0.2	0.1–2
Monocytes %	%	6.5	7.4	5	1–12
Lymphocytes %	%	14.2	16.6	9.4	20–50
Platelets (PLT)	$\times {10}^9/L$	189	198	176	130–450
Additional blood/laboratory analysis
Erythrocyte Sedimentation Rate (ESR)	mm/h	5.5	5.4	5.6	Variable
C-reactive Protein (CRP)	mg/L	92	71	151	< 5
Albumin	g/dL	3.2	3.3	3.2	3.1–5.2
Prothrombin Time International Normalized Ratio (PT INR)		1	1	1.1	0.8–1.2
Aspartate Aminotransferase (AST)	U/L	46	43	55	< 60
Alanine Aminotransferase (ALT)	U/L	34	33	35	< 35
Total Bilirubin	mg/dL	0.7	0.6	0.7	< 1.2
Creatine kinase (CK)	U/L	102	86	163	30–200
Lactic Acid Dehydrogenase (LDH)	U/L	388	343	505	125–220
Sodium	mmol/L	140	140	140	136–145
Potassium	mmol/L	4.1	4.1	4.1	3.3–5.1
Creatinine	mg/dL	0.84	0.8	0.96	0.72–1.18
Urea	mg/dL	38	34	47	18–55