Table IV.
Confusion matrix for streamlined partial least square discriminant analysis (PLS-DA) model using eight quantitative synovial fluid markers (two-component model; R2 = 0.694; Q2 = 0.673). Actual patient cohort is compared to predicted cohort. Overall accuracy = 96.9%. See 'Methods' for definitions of parameters.
| Predicted | ||||||
|---|---|---|---|---|---|---|
| esOA | Injury* | Inflam | NC | TotalACT | ||
| Actual | esOA | 60 | 0 | 0 | 0 | 60 |
| Injury* | 3 | 17 | 0 | 0 | 20 | |
| Inflam | 0 | 0 | 18 | 0 | 18 | |
| NC | 0 | 0 | 0 | 0 | 0 | |
| Total PRED | 63 | 17 | 18 | 0 | ||
*
Non-osteoarthritis-related knee injury.
esOA, end-stage knee osteoarthritis; Inflam, inflammatory arthritis; NC, no classification.