Blood samples per paediatric patient
| Age group | Number of blood samples | Statistical analysis (overall p value) | |||
|---|---|---|---|---|---|
| 1976–1985 Median [IQR] (range) | 1986–1995 Median [IQR] (range) | 1996–2005 Median [IQR] (range) | 2006–2015 Median [IQR] (range) | ||
| Neonates | 6 [5–7] (1–8) | 7 [6–9]* (1–14) | 4 [3–7]* (1–11) | 5 [3–7] (2–14) | 0.047 |
| Infants | 6.5 [5–7] (2–9) | 9 [6–11] (4–27) | 8 [5–12] (3–12) | 6 [4–8] (4–10) | 0.261 |
| Children | 7 [5–9]Î (4–20) | 9 [8–12]Ά (4–18) | 8 [7–10] (2–19) | 7 [5–9]† (2–20) | <0.001 |
| Adolescents | 5 | 8 [7–9] (7–9) | 9 [8–10] (8–10) | 6 [4–9] (2–11) | 0.300 |
| Mixed age | 8 [5–12] (5–18) | 9 [6–12] (2–15) | 8 [6–10] (1–16) | 7 [6–9] (2–15) | 0.229 |
| Total | 7 [5–8]‡ (1–20) | 9 [6–11]‡xƒ (1–27) | 8 [6–10]x (1–19) | 7 [5–9]ƒ (2–20) | <0.001 |
Only these pairs were significant: *(p=0.043), Î(p=0.039), †(p=<0.001), ‡(p=0.013), x(p=0.044) and ƒ(p=<0.001).