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Table 4 Median and reference intervals for haematology and biochemistry values stratified by season, by age group and/or by sex

From: Seasonal variation in haematological and biochemical reference values for healthy young children in The Gambia

   Dry season Wet season
Median (reference interval)a Median (reference interval) a
   12–23 months 24–35 months 36–47 months 48–59 months 12–23 months 24–35 months 36–47 months 48–59 months
Total WBC (109/L) Female 11.3 (6.2–16.9) 10.1 (6.3–16.5) 8.6 (5.5–14.9) 8.5 (5.4–14.7) 11.6 (6.4–20.8) 10.4 (6.3–17.7) 9.3 (6.0–15.2) 8.8 (6.1–13.7)
Male 10.2 (6.0–15.7) 9.8 (5.9–15.8) 8.8 (5.3–14.8) 7.8 (4.6–14.2) 11.3 (6.5–19.2) 10.0 (6.2–17.2) 9.1 (5.9–15.3) 8.6 (5.7–13.8)
Lymphocytes (109/L) All gender 6.3 (3.0–10.5) 5.7 (2.8–10.1) 4.5 (2.3–8.3) 4.2 (2.3–8.1) 6.8 (3.5–13.5) 5.6 (3.0–10.7) 4.9 (2.6–8.8) 4.6 (2.6–8.1)
Monocytes (109/L) All gender 0.49 (0.10–1.37) 0.44 (0.10–1.24) 0.40 (0.09–1.10) 0.35 (0.09–0.94) 0.61 (0.09–1.46) 0.55 (0.08–1.34) 0.49 (0.06–1.23) 0.44 (0.05–1.11)
Neutrophils (109/L) Female 3.2 (1.3–6.8) 3.1 (1.3–7.0) 3.0 (1.2–7.0) 3.0 (1.3–6.7) 3.3 (1.4–7.9) 3.3 (1.4–7.3) 3.2 (1.5–6.8) 3.1 (1.5–6.3)
Male 2.9 (1.4–6.2) 2.9 (1.3–5.7) 2.8 (1.3–5.4) 2.8 (1.2–5.1) 3.1 (1.3–8.5) 3.0 (1.4–7.6) 3.0 (1.3–6.5) 3.0 (1.2–5.6)
Eosinophils (109/L) All gender 0.32 (0.05–1.31) 0.36 (0.06–1.49) 0.40 (0.06–1.69) 0.43 (0.06–1.90) 0.32 (0.05–1.31) 0.36 (0.06–1.49) 0.40 (0.06–1.69) 0.43 (0.06–1.90)
Haemoglobin (g/dL) All gender 10.2 (6.8–12.7) 10.7 (7.3–13.3) 11.2 (7.8–13.8) 11.7 (8.4–14.2) 9.6 (7.2–11.6) 10.1 (6.9–12.0) 10.8 (7.2–12.5) 11.1 (7.6–12.7)
Platelets (109/L) All gender 478.8 (146.1–885.8) 433.6 (159.2–737.4) 397.8 (143.4–665.3) 375.7 (125.9–632.0) 530.9 (162.9–921.5) 487.6 (182.6–817.0) 449.9 (200.0–720.2) 421.8 (219.7–641.6)
Sodium (mmol/L) All gender 140.1 (134.3–143.9) 140.4 (135.2–144.7) 140.6 (135.8–145.9) 140.9 (136.2–148.0) 139.1 (131.4–142.8) 139.5 (132.0–143.2) 140.0 (132.6–143.6) 140.4 (133.3–144.0)
Potassium (mmol/L) Female 5.1 (4.0–6.5) 5.0 (3.9–6.4) 5.0 (3.8–6.2) 4.9 (3.7–6.1) 5.0 (4.0–6.3) 4.9 (3.2–5.9) 4.8 (3.7–6.8) 4.6 (3.9–6.2)
  Male 5.0 (4.0–6.1) 4.9 (3.9–6.1) 4.8 (3.8–6.1) 4.8 (3.8–6.1) 4.9 (3.7–6.2) 4.9 (3.8–6.1) 4.8 (3.9–5.8) 4.6 (3.8–5.3)
Urea (mmol/L) Female 1.9 (0.8–4.2) 2.5 (1.1–4.4) 2.7 (1.4–4.3) 2.7 (1.7–4.0) 1.5 (0.6–3.4) 1.9 (0.9–3.8) 2.4 (1.2–4.2) 2.8 (1.5–4.7)
  Male 2.0 (0.8–3.8) 2.4 (1.1–4.1) 2.7 (1.5–4.3) 2.9 (1.8–4.3) 1.7 (0.7–3.3) 2.2 (1.0–4.1) 2.5 (1.1–4.6) 2.7 (1.2–4.8)
Creatinine (μmmol/L) Female 25.8 (12.9–33.0) 27.6 (13..5–37.9) 30.0 (17.5–40.0) 32.5 (17.6–43.3) 12.4 (6.7–23.2) 15.5 (8.5–24.4) 18.7 (8.5–28.3) 21.7 (15.0–27.1)
  Male 26.4 (17.0–40.7) 28.3 (15.4–41.6) 29.7 (14.8–40.5) 31.3 (22.7–38.9) 13.8 (6.7–24.0) 16.3 (8.2–25.3) 18.8 (9.9–27.0) 21.2 (11.9–28.7)
AST (U/L) All gender 36.5 (29.2–61.8) 38.9 (27.4–62.1) 38.3 (25.9–61.7) 37.7 (24.5–61.0) 37.2 (17.3–64.7) 37.9 (17.2–65.2) 37.6 (16.7–64.3) 35.1 (15.2–59.4)
ALT (U/L) All gender 16.5 (8.2–29.8) 16.3 (8.7–29.8) 16.1 (9.2–29.7) 15.9 (9.6–29.6) 20.4 (9.9–39.0) 21.8 (10.8–39.6) 22.9 (11.6–39.8) 23.6 (12.1–39.8)
Albumin (g/L) All gender 39.4 (31.2–46.4) 39.8 (31.0–47.0) 40.3 (30.9–47.6) 40.8 (30.9–48.4) 36.8 (21.4–45.5) 37.5 (23.1-45.6) 38.3 (24.8-45.7) 39.0 (26.6–45.9)
  1. aThe 2.5 and 97.5 percentiles are used to define the reference interval