Table 1

Comparison of APLS, Luscome and Owens and new derived formula using Bland-Altman method
Age at last birthday (years) Number of patients APLS formula Luscombe and Owens formula Derived formula
Bias (estimated – measured weight - kg) 95% Limits of Agreement Bias (estimated – measured weight - kg) 95% Limits of Agreement Bias (estimated – measured weight - kg) 95% Limits of Agreement
1 439 −0.6 3.1 to −4.4 −0.6 3.1 to −4.4 −0.15 3.2 to −4.6
2 355 −1.2 4.1 to −6.6 −0.2 5.1 to −5.6 −0.2 5.1 to −5.6
3 318 −1.2 4.3 to −6.7 −0.8 6.3 to −4.7 −0.3 5.2 to −5.8
4 306 −2.0 5.3 to −9.4 1.0 8.3 to −6.4 −0.04 7.4 to −7.5
5 305 −2.4 6.6 to −11.4 1.6 10.6 to −7.4 0.3 8.5 to −7.9
All ages 1723 −1.4 5.0 to −7.8 −0.4 6.9 to −6.1 −0.4 6.0 to −6.1

There is no significant difference in accuracy or precision between the three methods.

Ali et al.

Ali et al. BMC Emergency Medicine 2012 12:9   doi:10.1186/1471-227X-12-9

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