Table 2.
Glucose metrics
| Variable | YSIa | OptiScanner®b |
|---|---|---|
| Number of measurements in the ICU | 944 | 929 |
| Number of measurements per patient, median (IQR) | 9 (7–12) | 9 (7–12) |
| Blood glucose level (mg/dl), median (IQR) | 140.5 (122–169) | 145 (123–169.5) |
| Blood glucose level (mg/dl), mean ± SD | 150.6 ± 44.5 | 150.5 ± 42.2 |
| Range of glucose (mg/dl) | 59.7–484 | 57–436 |
| Measurements of severe hypoglycemia (<40 mg/dl), number (%) | 0 | 0 |
| Patients with severe hypoglycemia, number (%) | 0 | 0 |
| Measurements of mild hypoglycemia (41–70 mg/dl), number (%) | 5 (0.5%) | 6 (0.6%) |
| Patients with mild hypoglycemia, number (%) | 4 (5%) | 3 (3%) |
| Measurements of severe hyperglycemia (>180 mg/dl), number (%) | 167 (18%) | 157 (17%) |
| Patients with severe hyperglycemia, number (%) | 46 (52%) | 47 (53%) |
OptiScanner® glucose metrics are based on the measurements that have a corresponding value for YSI
aYSI 2300 STAT Plus analyzer (Yellow Spring Instruments, Yellow Spring, OH, USA)
bOptiscan Biomedical Corporation, Hayward, CA, USA
ICU intensive care unit, IQR interquartile range, SD standard deviation