Analyte | Unit | Age range | Reference interval | Sample size, n | Reagent manufacturer | Study source | Reference |
hsCRP | mg/L | 0 to <14 days | 0.3–6.1 | 139 | Abbott | CALIPER | 10 |
15 days to <15 years | 0.1–1.0 | 653 | |||||
Serum ferritin | µg/L | 0 to <15 days | 39.8–539.9 | 56 | Beckman | CALIPER | 15 |
15 days to <6 months | 15.3–374.6 | 49 | |||||
6 months to <1 year | 13.3–191.9 | 44 | |||||
1 to <16 years | 10.3–55.8 | 424 | |||||
3–5 years | 10.7–85.2 | 400 | Ortho | CHMS | 14 | ||
Male 6–16 years | 16.2–106.7 | 680 | |||||
Female 6–24 years | 9.6–81.9 | 790 | |||||
4 to <15 days | 99.6–717.0 | 127 | Abbott | CALIPER | 12 | ||
15 days to <6 months | 14.0–647.2 | 172 | |||||
6 months to <1 year | 8.4–181.9 | 140 | |||||
1 to <5 years | 5.3–99.9 | 126 | |||||
5 to <14 years | 13.7–78.8 | 497 | |||||
Haemoglobin | g/L | 3–5 years | 113.5–143.1 | 420 | Beckman | CHMS | 13 |
6–8 years | 114.7–143.0 | 670 | |||||
9–10 years | 118.4–146.9 | 540 | |||||
Iron | µmol/L | 0 to <14 years | 2.8–22.9 | 588 | Abbott | CALIPER | 10 |
MCV | fL | 3–5 years | 77.2–89.5 | 410 | Beckman | CHMS | 12 |
6–11 years | 77.8–91.1 | 1460 | |||||
Platelets | 109/L | 3–5 years | 187.4–444.6 | 420 | Beckman | CHMS | 13 |
6–9 years | 186.7–400.4 | 910 | |||||
Transferrin | g/L | 0 to <9 weeks | 1.04–2.24 | 188 | Abbott | CALIPER | 10 |
9 weeks to <1 year | 1.07–3.24 | 104 | |||||
1 to <19 years | 2.20–3.37 | 878 |
Reference values are applicable to both sexes, unless specified otherwise.
CALIPER, Canadian Laboratory Initiative on Pediatric Reference Intervals; CHMS, Canadian Health Measures Survey; hsCRP, high-sensitivity C-reactive protein; MCV, mean corpuscular volume.