Table 1. The demographic characteristics of 398 asymptomatic inpatients who were admitted for investigation of the cause of iron deficiency anemia.
GI, gastrointestinal; IDA, iron deficiency anemia; Ig, immunoglobulin.
| Parameters | n | |
| Male gender (%) | 211 (53.02) | |
| Mean age (years ± standard deviation) | 52±9 | |
| Mean duration of hospitalization (days ± standard deviation) | 2.72±1.66 | |
| Dual lesions | 8 (2.01) | |
| Celiac disease diagnosis | Referred for celiac disease diagnosis (%) | 53 (13.3) |
| Antitissue transglutaminase antibody IgA positive (%) | 17 (4.3) | |
| Antitissue transglutaminase antibody IgG positive (%) | 10 (2.5) | |
| Biopsy-proven celiac disease (%) | 15 (3.8) | |
| Mean age (years ± standard deviation) | 41.0±10.0 | |
| Malignancies | Upper GI malignancies (%) | 16 (4.02) |
| Lower GI malignancies (%) | 10 (2.5) | |
| IDA parameters | Mean ferritin µg/L | 9.94±3.34 |
| Mean hemoglobin g/L | 7.07±2.11 | |
| Mean corpuscular volume fL | 62.84±9.76 | |
| Mean serum iron µg/dL | 21.78±6.38 | |
| Mean total iron-binding capacity µg/dL | 435.04±64.05 | |
| Mean transferrin saturation% | 5.17±1.81 | |