Table 1.
Basic characteristics of subjects in case and control groups
| Variable | Case group n = 212 | Control group n = 220 | P |
|---|---|---|---|
| Hypertension (%) | 70 (33.0%) | 42 (19.0%) | < 0.001 |
| Diabetes mellitus (%) | 57 (26.7%) | 25 (11.3%) | < 0.001 |
| Hyperlipidemia (%) | 78 (36.7%) | 44 (20.0%) | < 0.001 |
| Smoking (%) | 145 (66.7%) | 37 (16.7%) | < 0.001 |
| Serum ferritin (mg/dl) | 206.8 ± 156.3 | 147.3 ± 132.9 | < 0.001 |
| Serum iron (mg/dl) | 106.8 ± 46.9 | 107.6 ± 29.6 | > 0.050 |
| Serum TIBC (mg/dl) | 310.8 ± 99.6 | 337.7 ± 56.5 | > 0.050 |
| Transferrin saturation (%) | 33% ± 22.0 | 29% ± 21.0 | > 0.050 |
TIBC: Total iron binding capacity