TABLE 1.
Descriptive statistics of glucose concentrations by method of measurement (analyzer) and by glucose concentration subgroup
| Type of sample | Analyzer | Number of samples | Mean ± SD (mg/dL) | Median (range) (mg/dL) |
|---|---|---|---|---|
| All samples | FGMS | 142 | 259.9 ± 112.7 | 281.5 (55‐468) |
| POCG | 158 | 254.5 ± 123.4 | 264.5 (40‐592) | |
| ABA | 154 | 275.3 ± 133.8 | 287.5 (45‐677) | |
| All samples with hyperglycemia | FGMS | 103 | 317.4 ± 71.1 | 310 (151‐468) |
| POCG | 117 | 310.7 ± 89.4 | 295 (141‐592) | |
| ABA | 113 | 336.5 ± 99.4 | 313 (170‐677) | |
| Samples with pronounced hyperglycemia | FGMS | 88 | 331.2 ± 66.8 | 321.5 (154‐468) |
| POCG | 102 | 326.3 ± 84.6 | 308 (141‐592) | |
| ABA | 98 | 354.5 ± 94.0 | 322.5 (255‐677) | |
| Samples with normoglycemia | FGMS | 33 | 114.9 ± 27.6 | 113 (62‐161) |
| POCG | 34 | 103.8 ± 25.7 | 108.5 (51‐161) | |
| ABA | 34 | 117.3 ± 23.7 | 125 (74‐153) | |
| Samples with hypoglycemia | FGMS | 6 | 70.3 ± 13.4 | 69 (55‐88) |
| POCG | 7 | 48 ± 6.6 | 48 (40‐55) | |
| ABA | 7 | 54.3 ± 7.5 | 57 (45‐63) |
Note: Hyperglycemia, pronounced hyperglycemia, normoglycemia, and hypoglycemia were defined based on automated biochemistry blood glucose concentrations as >168, >250, ≥67 and ≤168, and <67 mg/dL, respectively.
Abbreviations: ABA, automated biochemistry analyzer measurement (serum); FGMS, flash glucose monitoring system (interstitial glucose); POCG, point‐of‐care glucometer measurement (whole blood).