Table 4.
Reference values [median (95th-percentile)] compared with those of other studies in old people
| Parameter (analyte) | Current study Uganda (age 50+) |
Hale et al. [26] (USA) 65+ |
Yip et al. [16] (USA) 65+ |
Tsang et al. [17] (Australia) 49+ |
Woo et al. [27] (China) 60+ |
|---|---|---|---|---|---|
| Mean age (range) | 63.5 (50–94) | ||||
| % Female | 60.3 | ||||
| Comorbidities excluded | Malaria, HIV, Hookworm | ||||
| Study design | Cross sectional | Cross sectional | Cross sectional | Cross sectional | Cross sectional |
| Hemoglobin (g/dL) | |||||
| All | 13.6 (10.9–15.8) | ||||
| Male | 14.2 (10.6–16.4) | −(14–18) | 14.9 (12.6–17.4) | 15.6 (13.1–17.5) | 12.1–16.5 |
| Female | 13.3 (11–15) | −(12–16) | 13.8 (11.7–16.1) | 14.3 (12.2–16.1) | 10.7–15 |
| Haematocrit (%) | |||||
| All | 40.6 (32.5–47.3) | ||||
| Male | 42.2 (32.4–49.1) | −(42–52) | 44 (37–51) | 46 (39–51) | 36–49 |
| Female | 39.8 (32.7–45.4) | −(37–47) | 40.8 (35–47) | 42 (36–47) | 32–45 |
| Erythrocytes (10/L) | |||||
| All | 4.63 (3.6–5.6) | ||||
| Male | 4.7 (3.6–5.7) | −(4.7–6.1) | 4.82 (3.8–5.8) | 5.06 (4.2–5.9) | 4.0–5.7 |
| Female | 4.6 (3.7–5.4) | −(4.2–5.4) | 4.5 (3.8–5.2) | 4.7 (4–5.4) | 3.8–5.4 |
| Platelets (109/L) | |||||
| All | 220 (77–353) | ||||
| Male | 207 (60–336) | 240 (153–382) | 95–224 | ||
| Female | 229 (98–359) | 269 (163–414) | 93–267 | ||
| WBC (×1000) | |||||
| All | 4.8 (3–7.7) | −(4.8–10.8) | |||
| Male | 4.9 (3.2–7.8) | 6.4 (3.9–9.5) | 4.6–10.5 | ||
| Female | 4.8 (3–7.2) | 6.1 (3.6–9.4) | 4.5–11.5 | ||
| MCV (Fl) | |||||
| All | 87 (75–99) | ||||
| Male | 89 (73–102) | −(80–94) | 91 (81–103) | 90 (80–99) | 71–96 |
| Female | 87 (76–97) | −(81–99) | 90 (81–102) | 90 (80–97) | 70–96 |
| Neutrophils (×109/L) | 2.05 (1.05–3.8) | ||||
| Neutrophils (%) | 43 (27.2–60.3) | ||||
| Lymphocytes (×109/l) | 2.09 (1.2–3.5) | ||||
| Lymphocytes (%) | 43.9 (28.6–59.8) | ||||
| Monocytes (×109/L) | 0.31 (0.17–0.57) | ||||
| Monocytes (%) | 6.5 (4.1–10.7) | ||||
| Eosinophils (×109/L) | 0.15 (0.05–0.81) | ||||
| Eosinophils (%) | 3.2 (1–15.3) | ||||
| Basophils (×109/L) | 0.04 (0.02–0.08) | ||||
| Basophils (%) | 1 (0–2) | ||||
The numbers from these four studies cited are from the original publications