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Distribution of patients according to the observed and predicted postoperative diplopia using the 70% dataset.
| Observed postoperative diplopia | Total of row cells | ||
|---|---|---|---|
| Present | Absent | ||
| Predicted postoperative diplopia | |||
| Present | 29 | 58 | 87 |
| Absent | 4 | 92 | 96 |
| Total of column cells | 33 | 150 | 183 |
Sensitivity = 29/33 = 87.9%, correlates with Negative Predictive Value = 92/96 = 95.8%
Specificity = 92/150 = 61.1%, correlates with Positive Predictive Value = 58/87 = 33.3%
