Distribution of selected genes of the cag PAI and clinical presentation
| ORF6 | ORF10 | ORF13 | cagT | cagM | cagE | cagA | tnpA | tnpB | DU | NUD | Total |
| + | + | + | + | + | + | + | + | + | 6 | 2 | 8 |
| + | + | + | + | + | + | + | + | − | 1 | 0 | 1 |
| + | + | + | + | + | + | + | − | + | 1 | 0 | 1 |
| + | + | + | + | + | + | + | − | − | 40 | 7 | 47 |
| − | − | − | − | + | + | + | + | + | 0 | 1 | 1 |
| − | − | − | − | + | + | + | − | − | 1 | 2 | 3 |
| − | − | − | − | − | + | + | + | + | 1 | 1 | 2 |
| − | − | − | − | − | + | + | − | − | 1 | 0 | 1 |
| + | + | + | + | − | − | − | − | − | 1 | 0 | 1 |
| − | − | − | − | − | − | − | − | − | 4 | 4 | 8 |
| Total | 56 | 17 | 73 |
DU, duodenal ulcer; NUD, non-ulcer dyspepsia.