Characteristics of patients with permanent AC
| Patient number | Age (years) | Serum vitamin B12 (pg/mL) (normal value=187–883 pg/mL) | Anti-intrinsic factor | Serum gastrin level (pg/mL) |
| 1 | 58 | 2000 | Positive | 2000 |
| 2 | 86 | 2000 | Positive | 3000 |
| 3 | 69 | 405 | Positive | 3000 |
| 4 | 69 | 224 | Negative | 1300 |
| 5 | 80 | 1642 | Positive | 3000 |
| 6 | 92 | 265 | Positive | 3000 |
| 7 | 68 | 100 | Negative | 2100 |
AC, achlorhydria.