Table 3 |
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|
Sensitivity and specificity at baseline and during cold/warm cycle of temperature difference and the asymmetry factor |
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| |Average fingertip temperature difference at rest.| |
|Max. average fingertip temperature difference during temperature cycle.| |
Asymmetry factor at rest. |
Minimum Asymmetry factor during the temperature cycle. |
|
|
|
||||
| Sensitivity |
76% |
92% |
100% |
100% |
| Specificity |
38% |
75% |
75% |
83% |
| Positive predictive value |
62 |
85 |
100 |
100 |
| Negative predictive value |
43 |
86 |
73 |
79 |
| Cut-off points |
0.1°C |
1.4°C |
0.81 |
0.73 |
| AUC 95% interval and Std.Error |
0.48 0.221–0.737(0.101) |
0.87* 0.666–1.063(0.101) |
0.90* 0.767–1,035(0.068) |
0.96** 0.879–1.038(0.40) |
| Likelihood ratio positive test |
1.2 |
3.7 |
4 |
5.9 |
| Likelihood negative test |
0.6 |
0.1 |
0 |
0 |
| Difference in AUC |
0.39* |
0.06 |
||
|
*Significant at the p < 0.05 level. **Significant at the p < 0.001 level. | ||||
Niehof et al. BioMedical Engineering OnLine 2006 5:30 doi:10.1186/1475-925X-5-30 |
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