Table 4.
Comparison of the general situation of patients with or without vitamin B12 deficiency
| Item | VitB12 deficiency, n = 207 | Normal VitB12 level, n = 386 | t/c2 | P value |
| Age in yr | 51.70 ± 14.70 | 44.3 ± 11.80 | 6.666 | 0.000 |
| Sex, % male | 51.60 | 48.80 | 0.481 | 0.488 |
| Systolic blood pressure in mmHg | 132.13 ± 19.37 | 129.35 ± 20.06 | 1.628 | 0.104 |
| Diastolic blood pressure in mmHg | 75.26 ± 11.44 | 76.31 ± 9.37 | -1.202 | 0.230 |
| BMI in kg/m2 | 18.36 ± 3.22 | 22.45 ± 2.39 | -17.529 | 0.000 |
| Helicobacter pylori infection, % | 87.6 | 74.8 | 12.949 | 0.000 |
| Gastroscopy results, % prevalence of chronic atrophic gastritis | 86.50 | 51.80 | 70.180 | 0.000 |
| Serum creatinine in μmol/L | 78.60 ± 17.20 | 76.5 ± 12.40 | 1.709 | 0.088 |
| Gastric acid in mmol | 7.90 ± 4.20 | 17.60 ± 3.50 | -29.955 | 0.000 |
| Serum gastrin in pg/mL | 432.85 ± 137.62 | 219.49 ± 47.98 | 27.516 | 0.000 |
BMI: Body mass index; Vit: Vitamin.