Table 1 Demographic characteristics of the patients with vitamin B12 deficiency
From: Oral manifestations in vitamin B12 deficiency patients with or without history of gastrectomy
| Â | With a history of gastrectomy | Without a history of gastrectomy | P value |
|---|---|---|---|
|  | N = 11 | N = 11 | |
Sex (male/female) | 5/6 | 4/7 | 1.000 |
Age (years) Mean ± SD (range) | 62.6 ± 7.6 (51–73) | 66.9 ± 9.9 (52–85) | 0.323 |
Symptom duration (months) Mean ± SD (range) | 64.5 ± 61.7 (1–180) | 37.6 ± 31.9 (6–96) | 0.554 |
Vitamin B12 (pg/mL) Mean ± SD (range) | 74.5 ± 51.2 (25–188) | 64.2 ± 26.9 (25–123) | 0.895 |