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Performance of the three stool antigen tests as compared with UBT and serology in 182 subjects after eradication therapy
| UBT, serology | HpSA | HpStAR | ImmunoCard |
| Negative 166 | Negative 1611 | 162 | 161 |
| Positive 4 | 4 | 5 | |
| 1 gray zone2 | |||
| Positive 16 | Positive 13 | 16 | 15 |
| Negative 33 | 0 | 1 |
Six subjects originally had gray zone result.
Gray zone result even in re-examination.
One subject originally had gray zone result.
