TABLE 3.
The differing definition of anemia in patients’ status postrestorative proctocolectomy (RPC) in different countries
| Author | Location | Definition of anemia | n | Prevalence in RPC population (%) |
|---|---|---|---|---|
| Oikonomou et al., 200733 | USA | Hemoglobin: < 13.5 g/dL (men), < 12 g/dL (Women) | 389 | 17 |
| M'Koma et al., 199 4 29, 88 | Sweden | Hemoglobin: < 130.0 g/L (men), < 115.0 g/L (Women) | 75 | 15 |
| Iron: < 9 μmol/L (men) ( < 5 μmol/L (Women) | 68 | 15 | ||
| Vitamin B12: < 140 pmol/L | 69 | 7 | ||
| Folate: < 4 nmol/L | 66 | 0 | ||
| Transferrin: < 2.1 g/L | 16 | 0 | ||
| Schilling test: without intrinsic factor (IF), < 11% | 67 | 30 | ||
| Schilling test: with intrinsic factor (IF), < 12% | 67 | 31 | ||
| M'Koma et al., 20067 | Sweden & USA | Iron: < 9 μmol/L (men) (< 5 μmol/L (Women) | 10.4 | |
| Coull et al., 200732 | Ireland | Vitamin B12: < 387 pg/mL | 171 | 22.2 |
| Schilling test: < 11% | 0 | |||
| Nicholls et al., 19816 | UK | Iron: < 35 μg/L | 18 | 29 |
| Vitamin B12:< 370 nmol/L | 14 | 7 | ||
| Folate: < 4 nmol/L | 14 | 14.5 | ||
| Schilling test: < 11% | 14 | 29 | ||
| Transferrin: < 2.1 g/L | 14 | 21 | ||
| Bayat et al. 1994,44 | Denmark | Schilling test: < 11% | 3 | |
| Hylander et al., 199142 | Schilling test: < 11% | 17 | 30 | |
| Tiainen et al., 200031 | Finland | Iron: < 9 μmol/L (men), < 6 μmol/L (women) | 64 | 10.4 |
| Hemoglobin: < 130 g/L (men), < 120 g/L (women) | 64 | 20.8 | ||
| Vitamin B12: < 170 pmol/L | 64 | 4.1 | ||
| Folate: < 320 nmol/L | 64 | 0 | ||
| Kuisma et al., 200138 | Hemoglobin: < 135 g/L (men), < 125 g/L (women) | 34 | 29.4 | |
| Vitamin B12: < 170 pmol/L) | 34 | 21 | ||
| Schilling test: < 11% | 34 | 20 | ||
| Folate: < 4 nmol/L | 34 | 0 | ||
| Pastrana et al., 200737 | Puerto Rico | Hemoglobin: < 14 gm/dL (men), < 12 gm/dL (women) | 18 | |
| Iron: < 9 μmol/L | 18 | 55.5 | ||
| Athanasiadis, 198340 | German | Folate: < 4 nmol/L | 7 | 0 |
| Schilling test: < 11% | 7 | 28.5 | ||
| Iron: < 9 μmol/L | 7 | 0 | ||
| Transferrin: < 2.1 g/L | 7 | 0 | ||
| Piron et al., 199143 | Italy | Folate: < 320 nmol/L | 36 | 0 |
| Fiorentini et al., 198741 | Folate: < 320 nmol/L | 8 | 0 | |
| Vitamin B12: < 370 nmol/L | 8 | 0 | ||
| Schilling test: < 11% | 8 | 12.5 | ||
| Hemoglobin: < 13.8 gm/dl (men), <12.1 gm/dl | 8 | 0 | ||
| Iron: < 9 μmol/L | 8 | 0 | ||
| Transferrin: < 2.1 g/L | 8 | 0 | ||
| Schilling test: < 11% | 34 | 20 | ||
| Folate: < 4 nmol/L | 34 | 0 | ||
| Tulchinsky et al., 200739 | Iron: < 9 μmol/L (men), < 6 μmol/L (women) | 22 |