Table 3.
Comparison of the results of the ROC analyses from (a) SHP and (b) GP at all time points [T1 (30 min) – T5 (150 min)] and AUC, AUC0–90 and AUC90–150
| (a) SHP | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Time Point | Cut-off | Se | 95% CI | Sp | 95% CI | ROC-AUC | 95% CI | ROC AUC’s SE |
P-value |
| T1 (30 min) | 2.92 | 83% | 36–100% | 75% | 51–91% | 78% | 51–91% | 0.09656 | 0.0017 |
| T2 (60 min) | 4.92 | 100% | 54–100% | 75% | 51–91% | 91% | 69–98% | 0.06001 | 0.0000 |
| T3 (90 min) | 7.14 | 83% | 36–100% | 80% | 56–94% | 87% | 62–96% | 0.07553 | 0.0000 |
| T4 (120 min) | 7.26 | 83% | 36–100% | 60% | 36–81% | 80% | 51–93% | 0.09732 | 0.0010 |
| T5 (150 min) | 7.05 | 83% | 36–100% | 70% | 46–88% | 78% | 51–91% | 0.09558 | 0.0020 |
| AUC | 24.4 | 100% | 54–100% | 70% | 46–88% | 86% | 62–95% | 0.07523 | 0.0000 |
| AUC 0–90 | 9.53 | 100% | 54–100% | 65% | 41–85% | 89% | 64–97% | 0.06945 | 0.0000 |
| AUC 90–150 | –6.47 | 50% | 12–88% | 40% | 19–64% | 30% | 7–49% | 0.11010 | 0.0402 |
| (b) GP | |||||||||
| Time Point | Cut-off | Se | 95% CI | Sp | 95% CI | ROC-AUC | 95% CI |
ROC
AUC’s SE |
P-value |
| T1 (30 min) | 1.40 | 75% | 48–93% | 51% | 36–66% | 64% | 44–78% | 0.08299 | 0.0455 |
| T2 (60 min) | 4.04 | 75% | 48–93% | 52% | 37–67% | 68% | 51–79% | 0.07043 | 0.0064 |
| T3 (90 min) | 7.23 | 56% | 30–80% | 59% | 43–73% | 62% | 46–75% | 0.07291 | 0.0468 |
| T4 (120 min) | 8.40 | 63% | 35–85% | 65% | 50–79% | 65% | 48–78% | 0.07582 | 0.0233 |
| T5 (150 min) | 7.25 | 56% | 30–80% | 54% | 39–69% | 61% | 43–75% | 0.08103 | 0.0820 |
| AUC | 25.12 | 63% | 35–85% | 61% | 45–75% | 66% | 49–79% | 0.07539 | 0.0231 |
| AUC 0–90 | 9.30 | 69% | 41–89% | 57% | 41–71% | 68% | 51–80% | 0.07284 | 0.0073 |
| AUC 90–150 | −5.12 | 50% | 25–75% | 61% | 45–75% | 47% | 30–61% | 0.08000 | 0.0086 |
For each variable, the cut-off value (Cut-off) with best sensitivity (Se) (including its 95% CI), specificity (Sp) (including its 95% CI), area under the ROC-curve (ROC-AUC) [including its 95% CI and its SE (ROC-AUC’s SE)] and 1-Sided P-value (P-value) is given.
AUC = area under the curve; CI = confidence interval; GP = the general population; ROC = receiver-operating characteristic; SHP = sport horse population.