Prognostic Value of Complete Blood Count and Electrolyte Panel during Emergency Department Evaluation for Acute Ischemic Stroke
Table 1
Association between laboratory measures and early mortality in AIS.
Laboratory measure†
Mortality at 90 days (%)
Risk ratio (95% CI)
P value
White blood cell count
Normal ()
16.4
Referent
High ()
32.8
2.2 (1.5–3.4)
<0.001
Hemoglobin
Low ()
25.0
1.7 (1.1–2.5)
0.014
Normal ()
16.3
Referent
High ()
—‡
—
Platelet count
Low ()
28.7
1.8 (1.0–3.2)
0.059
Normal ()
18.0
Referent
High ()
—‡
—
Sodium
Low ()
24.2
1.3 (0.7–2.6)
0.39
Normal ()
18.6
Referent
High ()
—‡
—
Potassium
Low ()
13.6
0.7 (0.3-1.4)
0.28
Normal ()
20.6
Referent
High ()
14.8
0.7 (0.2–1.8)
0.45
Chloride
Low ()
18.9
1.0 (0.6–1.6)
0.88
Normal ()
18.8
Referent
High ()
29.9
1.6 (0.8–3.3)
0.17
Bicarbonate
Low ()
51.2
4.2 (2.6–6.7)
<0.001
Normal ()
15.6
Referent
High ()
20.1
1.3 (0.7–2.3)
0.48
Glucose
Low ()
—‡
—
Normal ()
17.7
Referent
High ()
27.8
1.3 (1.1–1.6)
0.010
Not assessed ()
11.0
—
Calcium
Low ()
33.6
2.9 (1.4–5.9)
0.003
Normal ()
13.5
Referent
High ()
—‡
—
Not assessed ()
19.8
—
†Not all patients had every laboratory measure assessed. ‡There were too few patients with either low glucose or high sodium, calcium, hemoglobin, or platelet count to estimate the mortality at 90 days.
