Table 2. Demographic and laboratory results of healthy donors in reference interval study.
| Parameter | All | Male (n = 60) | Female (n = 60) | p-value |
|---|---|---|---|---|
| General | ||||
| Age (years) | 31 (25–44.5) | 29 (25–39) | 32.5 (26–50) | ns |
| OC use (%) | 15 | - | 15 (25%) | - |
| Haematological | ||||
| Blood groupa (%) | O n = 26 (40%) | n = 12 (41%) | n = 14 (39%) | ns |
| A n = 29 (45%) | n = 12 (41%) | n = 17 (47%) | ||
| B n = 9 (14%) | n = 5 (17%) | n = 4 (11%) | ||
| AB n = 1 (1%) | n = 1 (3%) | |||
| Platelets (x109/L) | 233 (208–270) | 229 (207–257) | 244 (216–284) | ns |
| WBC (x109/L) | 5.2 (4.6–6.0) | 5.2 (4.6–5.8) | 5.3 (4.7–6.2) | ns |
| RBC (x1012/L) | 4.5 (4.2–4.7) | 4.6 (4.5–4.8) | 4.3 (4.1–4.5) | <0.0001 |
| Hb (mmol/L) | 7.9 (7.5–8.4) | 8.3 (8.0–8.6) | 7.6 (7.2–7.9) | <0.0001 |
| Hct (L/L) | 0.39 (0.37–0.41) | 0.40 (0.39–0.41) | 0.37 (0.35–0.39) | <0.0001 |
| MPV (fL) | 7.5 (7.1–8.2) | 7.4 (7.1–8.2) | 7.6 (7.2–8.3) | ns |
OC, oral contraceptives; freq, frequency; WBC, white blood cell count; RBC, red blood cell count; Hb, haemoglobin; Hct, haematocrit; MPV, mean platelet volume.
a Blood group known for 65 individuals (36 female, 29 male), percentages indicate proportions for each blood group from total individuals with known blood group. Medians and interquartile ranges (25–75%) are given unless otherwise indicated.