Table 1.
Comparison of lab A, B and C results.
B\A | positive | negative | Total |
---|---|---|---|
Positive | 76 | 5 | 81 |
Negative | 21 | 113 | 134 |
Total | 97 | 118 | 215 |
C\A | positive | negative | Total |
Positive | 62 | 3 | 65 |
Negative | 35 | 115 | 150 |
Total | 97 | 118 | 215 |
C\B | positive | negative | Total |
Positive | 65 | 0 | 65 |
Negative | 16 | 134 | 150 |
Total | 81 | 134 | 215 |