TABLE 1.
Frequencies of 12 antibodies to H. pylori in 98 human sera and their abilities to predict H. pylori infection
| Immunoreactive band (kDa) | No. (%) of reacting sera from:
|
Performance index (%)b | |
|---|---|---|---|
| Colonized patients (n = 41)a | Noncolonized patients (n = 57)a | ||
| 125 | 29 (70.7) | 11 (19.3) | 77 |
| 87 | 25 (60.9) | 11 (19.3) | 72 |
| 74 | 14 (34.1) | 6 (10.5) | 66 |
| 66 | 19 (46.3) | 9 (15.8) | 68 |
| 54 | 34 (82.9) | 10 (17.5) | 83 |
| 48 | 14 (34.1) | 4 (7.0) | 68 |
| 46 | 22 (53.7) | 8 (14.0) | 72 |
| 42 | 24 (58.5) | 4 (7.0) | 79 |
| 35 | 26 (63.4) | 6 (10.5) | 79 |
| 30 | 26 (63.4) | 17 (29.8) | 67 |
| 16 | 20 (48.8) | 1 (1.8) | 78 |
| 14 | 15 (36.6) | 7 (12.3) | 66 |
a
Based on urease assay, direct examination, or culture. The antibodies to the 12 antigens listed were significantly more frequent in the patients infected by H. pylori than in the noninfected patients (chi-square test; P < 0.05).
b
Percentage of patients correctly classified [i.e., (number of true positive + number of true negative)/number of patients].