Table 3.
Estimation of Sensitivity, Specificity, Negative Predictive Value and Likelihood Ratios Among Women Diagnosed with Primary Breast Cancer at Aalborg University Hospital, 1987–2004
| Algorithm | Medical Record Review | ||
|---|---|---|---|
| Late Recurrence | No Late Recurrence | In Total | |
| Late recurrence | <5 | <5 | 7 |
| No late recurrence | 0 | 107 | 107 |
| In total | <5 | <114 | 114 |
| Results (95% confidence intervals) | |||
| Sensitivity (TP/(TP+FN)) | 100.0% (39.8–100.0%) | ||
| Specificity (TN/(TN+FP)) | 97.3% (92.2–99.4%) | ||
| NPV (TN/(TN+FN)) | 100.0% (96.6–100.0%) | ||
| PLR (sensitivity/1- specificity) | 36.7 (12.0–111.9) | ||
| NLR (1-sensitivity/specificity) | 0 | ||
Notes: Cell sizes less than 5 are reported in aggregate to reduce identifiability of individuals in the data.
Abbreviations: TP, true positive; FN, false negative, TN; true negative; NPV, negative predictive value, PLR, positive likelihood ratio; NLR, negative likelihood ratio.