Table 4

Total blood volume for all samples per paediatric patient

Age groupTotal volume of blood samples (mL)
1976–1985
Median [IQR] (range)
1986–1995
Median [IQR] (range)
1996–2005
Median [IQR] (range)
2006–2015
Median [IQR] (range)
Statistical analysis (overall p value)
Neonates2 [1.5–5] (1–5)4 [2–8] (2–14)2 [1–4] (0.6–7)2 [0.9–4] (0.6–7)0.241
Infants36 [3–22] (3–41)14 [5–30] (1–60)10 [5–16] (0.6–16)0.546
Children20 [14–40] (9–50)23 [10–30] (2–55)18 [8–22] (1–60)14 [6–20] (2–77)0.041
Adolescents3532 [21–35] (21–35)16 [7–18] (7–18)8 [8–11] (8–11)0.042
Mixed age15 [7–27] (7–27)13 [11–24] (5–24)12 [5–16] (3–24)10 [5–17] (0.6–50)0.284
Total8 [3–22] (1–50)14 [6–25] (2–55)12 [5–21] (0.6–60)10 [5–18] (0.6–77)0.213