Table 2.
The 17 Delphi criteria determined in the second article of this three-paper series [7] used for the quantitative assessment of the 61 TSIs.
| # | Delphi criteria | Description | Weightings |
|---|---|---|---|
| 1 | Pearson’s correlation coefficient with core temperature | Pearson’s r value (range: 0 to 1)* | 0.1170 |
| 2 | Pearson’s correlation coefficient with mean skin temperature | Pearson’s r value (range: 0 to 1)* | 0.0622 |
| 3 | Pearson’s correlation coefficient with mean body temperature | Pearson’s r value (range: 0 to 1)* | 0.0605 |
| 4 | Pearson’s correlation coefficient with heart rate | Pearson’s r value (range: 0 to 1)* | 0.0560 |
| 5 | Area Under the ROC curve for increased (>36.7°C) mean body temperature | Area Under the Curve value (range: 0 to 1) | 0.0413 |
| 6 | Sensitivity for increased (>36.7°C) mean body temperature | Sensitivity value (range: 0 to 1)* | 0.0710 |
| 7 | Specificity for normal (≤36.7°C) mean body temperature | Specificity value (range: 0 to 1)* | 0.0220 |
| 8 | Risk ratio for increased (>36.7°C) mean body temperature | Risk ratio value (range: 0 to 1)*† | 0.0415 |
| 9 | Providing categories characterizing the level of heat stress | No categories = 0; Categories = 1 | 0.1117 |
| 10 | Use heat stress categories to provide guidance | No guidance = 0; Guidance = 1 | 0.1435 |
| 11 | Practicality and cost-effectiveness during year 1 | Ratio to the most cost-effective index in year 1 found in our systematic search (range: 0 to 1) | 0.0415 |
| 12 | Practicality and cost-effectiveness in a 10-year period | Ratio to the most cost-effective index in 10-years found in our systematic search (range: 0 to 1) | 0.0533 |
| 13 | Pearson’s correlation coefficient with hydration status (average correlation of urine specific gravity and urine color) | Pearson’s r value (range: 0 to 1)* | 0.0595 |
| 14 | Area Under the ROC curve for extreme (>39.0°C) mean body temperature | Area Under the Curve value (range: 0 to 1) | 0.0235 |
| 15 | Sensitivity for extreme (>39.0°C) mean body temperature | Sensitivity value (range: 0 to 1)* | 0.0450 |
| 16 | Specificity for non-extreme (≤39.0°C) mean body temperature | Specificity value (range: 0 to 1)* | 0.0190 |
| 17 | Risk ratio for extreme (>39.0°C) mean body temperature | Risk ratio value (range: 0 to 1)*† | 0.0315 |
Note: * = non-significant values (p > 0.05) were marked as “0”; † = values greater than “1” were marked as “1”.