Table 5 Distribution of posttreatment level 2 hypoglycemia (blood glucose < 54 mg/dL or < 3.0 mmol/L) and level 3 hypoglycemia across different levels of risk categories
From: Predicting hypoglycemia after treatment of hyperkalemia with insulin and glucose (Glu-K60 score)
Risk categoriesa | Score | Posttreatment hypoglycemia – n (%) (n = 97) | No posttreatment hypoglycemia – n (%) (n = 288) | Sensitivity (95% CI) | Specificity (95% CI) | PPV (95% CI) | NPV (95% CI) | LHR + (95% CI) | LHR- (95% CI) | Accuracy (95% CI) |
|---|---|---|---|---|---|---|---|---|---|---|
Option 1 | ||||||||||
 Low |  < 2 | 10 (19.2) | 124 (37.2) | 80.8 (67.5—90.4) | 37.2 (32—42.7) | 16.7 (12.3—21.9) | 92.5 (86.7—96.4) | 1.29 (1.1—1.5) | 0.52 (0.29—0.92) | 43.1 (38.1—48.2) |
 High |  ≥ 2 | 42 (80.8) | 209 (62.8) |  |  |  |  |  |  |  |
Option 2 | ||||||||||
 Low |  < 3 | 26 (50) | 230 (69.1) | 50 (35.8—64.2) | 69.1 (63.8—74) | 20.2 (13.6—28.1) | 89.8 (85.5—93.3) | 1.62 (1.18—2.22) | 0.72 (0.55—0.96) | 66.5 (61.5—71.2) |
 High |  ≥ 3 | 26 (50) | 103 (30.9) |  |  |  |  |  |  |  |