Table 3

 Relative biases (%) in prediction equations according to age group and sex

BoysGirls0–0.99 years1–4.99 years5–11 years
BiasSDBiasSDBiasSDBiasSDBiasSD
*Significant difference between boys and girls, p<0.001.
All biases significantly different from zero, p<0.0001.
Friis-Hansen (1957)9.3*8.813.412.312.69.45.510.37.312.8
Mellits and Cheek (1970)2.1*9.35.88.95.510.32.98.63.37.8
Morgernstern et al (2002)7.29.26.88.88.78.04.38.53.67.3