Table 1 Background of patients and control subjects
From: Association between itching and the serum zinc levels in patients with varicose veins
| Parameter | Study group (itching) | Study group (without itching) | Control group | |||
|---|---|---|---|---|---|---|
| Male | Female | Male | Female | Male | Female | |
| Number of patients, n | 2 | 9 | 6 | 7 | 2 | 7 |
| Age (year;mean ± SD) | 75.0 ± 2.8 | 63.8 ± 9.1 | 53.5 ± 10.1 | 64.2 ± 5.7 | 49.0 ± 0 | 39.5 ± 7.1 |
| Itch score | 2 | 1.5 | 0 | 0 | 0 | 0 |
| Smoker,n | 2 | 1 | 1 | 0 | 0 | 0 |
| Type 2 diabetes mellitus,n | 1 | 1 | 0 | 0 | 0 | 0 |
| Hypertension,n | 0 | 2 | 1 | 1 | 0 | 0 |
| Family history of varicosis, n | 0 | 0 | 0 | 0 | 0 | 0 |
| Birth history (had >1 child),n | 0 | 9 | 0 | 7 | 0 | 0 |
| Hemoglobin,(g/dL;mean ± SD) | 13.2 ± 0.6 | 12.7 ± 0.8 | 12.7 ± 0.8 | 13.1 ± 0.9 | 14.6 ± 0.6 | 13.7 ± 0.7 |