Blood indices of elderly women among cases and controls
| Biochemical indices | Cases (n=1004) | Controls (n=1025) | p Value |
|---|---|---|---|
| Haemoglobin (g/L) | 113.7 (6.8) | 140.0 (8.8) | <0.001 |
| Total protein (g/L) | 79.3 (9.2) | 81.0 (6.3) | <0.001 |
| Albumin (g/L) | 48.1 (3.7) | 49.4 (3.6) | <0.001 |
| Serum iron (μmol/L) | 13.4 (5.4) | 16.4 (5.7) | <0.001 |
| Ferritin (μg/L) | 109.6 (85.6) | 131.0 (92.0) | <0.001 |
| Transferrin (g/L) | 2.6 (0.5) | 2.6 (0.4) | 0.765 |
| Free erythrocyte protoporphyrin (μg/dL) | 42.4 (21.2) | 39.6 (17.8) | 0.001 |
| Total iron binding capacity (μmol/L) | 61.2 (11.4) | 62.1 (10.1) | 0.074 |
| Transferrin saturation (%) | 22.5 (9.5) | 26.8 (9.6) | <0.001 |
| C-reactive protein (mg/L) | 6.9 (8.6) | 7.9 (6.8) | 0.007 |
| FEP/Hb ratio (μg/g, %) | 3.8 (2.0) | 2.8 (1.3) | <0.001 |
FEP, free erythrocyte protoporphyrin.