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Table 1 Russian preschool children mean height, weight and BMI z-scores relative to the three references

From: The height-, weight- and BMI-for-age of preschool children from Nizhny Novgorod city, Russia, relative to the international growth references

Reference N Height z-score Weight z-score BMI z-score
Mean 95 % CI Mean 95 % CI Mean 95 % CI
boys aged 3–4 years  
WHO2006 643 0.13 0.04 0.20 0.17 0.10 0.25 0.13 0.10 0.21
USCDC2000 0.28* 0.22 0.37 0.15 0.07 0.24 −0.19 −0.29 −0.1
girls aged 3–4 years  
WHO2006 599 0.15 0.07 0.24 0.17 0.09 0.24 0.09 0.01 0.17
USCDC2000 0.46* 0.37 0.54 0.18 0.10 0.26 −0.08 −0.17 0.02
boys aged 5–7 years  
WHO2007 982 0.34* 0.28 0.42 0.23 0.16 0.29 −0.01 −0.08 0.06
USCDC2000 0.38 0.31 0.44 0.12 0.05 0.18 −0.2 −0.28 −0.11
girls aged 5–7 years  
WHO2007 906 0.44* 0.37 0.51 0.24 0.18 0.31 −0.01 −0.07 0.06
USCDC2000 0.47 0.40 0.54 0.18 0.11 0.25 −0.07 −0.15 0.01
  1. * - p < 0.05 between sex groups