Table 1.
Descriptive statistics of lab tests
| ICU day 1 | ICU day 2 | ICU day 3 | ||||
|---|---|---|---|---|---|---|
| N | Mean [SD] | N | Mean [SD] | N | Mean [SD] | |
| Hematocrit (%) | 27,549 | 31.9 [5.0] | 19,307 | 30.7 [4.4] | 12,913 | 30.4 [4.2] |
| Platelet (K/μL) | 27,347 | 218.4 [112.2] | 18,710 | 198.8 [110.4] | 12,597 | 196.0 [114.9] |
| White Blood Cell Count (K/μL) | 27,187 | 12.3 [8.8] | 18,675 | 12.0 [7.6] | 12,579 | 11.8 [7.9] |
| Glucose (mg/dL) | 27,638 | 139.3 [50.5] | 19,167 | 128.4 [44.2] | 12,840 | 129.1 [43.0] |
| HCO3 (mEq/L) | 27,813 | 24.4 [4.6] | 19,077 | 25.0 [4.6] | 12,831 | 25.5 [4.8] |
| Potassium (mEq/L) | 27,792 | 4.1 [0.5] | 19,475 | 4.1 [0.5] | 13,048 | 4.0 [0.5] |
| Sodium (mEq/L) | 27,620 | 138.6 [4.4] | 18,881 | 138.7 [4.5] | 12,745 | 138.9 [4.7] |
| Chloride (mEq/L) | 27,352 | 105.5 [5.7] | 18,760 | 105.3 [5.6] | 12,647 | 105.0 [5.8] |
| Blood Urea Nitrogen (mg/dL) | 27,599 | 25.3 [20.9] | 18,867 | 26.2 [21.2] | 12,712 | 28.0 [22.1] |
| Creatinine (mg/dL) | 27,612 | 1.4 [1.5] | 18,883 | 1.4 [1.5] | 12,716 | 1.5 [1.5] |
| Lactate (mmol/L) | 11,423 | 2.5 [2.0] | 4533 | 2.2 [2.3] | 2861 | 2.1 [2.2] |
The number of adult ICU admissions with at least one measurement (N), as well as the mean and standard deviation (SD) of daily median values from individual ICU admissions are shown for the first 3 days in the ICU