Abstract G241(P) Table 1
Method
Age rangeFormula
Single formula APLS1–10 yearsweight = (age + 4) x 2
Three formulae APLS<12 months
1–5 years
6–12 years
weight = (0.5 x age in months) + 4
weight = (2 x age) + 8
weight = (3 x age) +7
Modified Best Guess Method<12 months
1–9 years
10–14 years
weight = (age in months +9)/2
weight = (2 x age) +10
weight = (4 x age)
Reference tableDerived from UK growth data0–16 yearsweight = 50th centile for age and sex