Table 3 Distribution of posttreatment blood glucose ≤ 70 mg/dL (≤ 3.9 mmol/L) 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 | 4 (4.1) | 43 (14.9) | 95.9 (89.8—98.9) | 14.9 (11—19.6) | 27.5 (22.8—32.6) | 91.5 (79.6—97.6) | 1.13 (1.06—1.2) | 0.28 (0.1—0.75) | 35.3 (30.6—40.3) |
 High |  ≥ 2 | 93 (95.9) | 245 (85.1) |  |  |  |  |  |  |  |
Option 2 | ||||||||||
 Low |  < 3 | 30 (30.9) | 152 (52.8) | 69.1 (58.9—78.1) | 52.8 (46.8—58.7) | 33 (26.6—39.9) | 83.5 (77.3—88.6) | 1.46 (1.22—1.75) | 0.59 (0.43—0.8) | 56.9 (51.8—61.9) |
 High |  ≥ 3 | 67 (69.1) | 136 (47.2) |  |  |  |  |  |  |  |
Option 3 | ||||||||||
 Low |  < 4 | 34 (35.1) | 165 (57.3) | 64.9 (54.6—74.4) | 57.3 (51.4—63.1) | 33.9 (27.1—41.2) | 82.9 (77—87.9) | 1.52 (1.25—1.85) | 0.61 (0.46—0.82) | 59.2 (54.1—64.2) |
 High |  ≥ 4 | 63 (65) | 123 (42.7) |  |  |  |  |  |  |  |