Table 7.
Correlation between quadruple test screening and histopathology
| Quad score | Histopathology | |||
|---|---|---|---|---|
|
| ||||
| Benign | Dubious and uncertain malignant potential | Malignant | Total | |
| Benign | 301 | 301 | ||
| Dubious and uncertain malignant potential | 12 | 1 | 1 | 14 |
| Malignant | 2 | 1 | 2 | 5 |
| Total | 315 | 2 | 3 | 320 |
Covariance σ: 20241.5556 A positive covariance means that the two variables are positively related and they have the same direction. “Correlation coefficient” 0.9996 (correlation coefficient uses values from −1 to 1, correlation with greater absolute value has a stronger linear correlation)