The World Health Organization (WHO) has published data on the physical development of infants and children up to 5 years of age.

Patient selection: length from 45 to 110 cm



(1) gender

(2) height in centimeters

(3) weight in kilograms


For each specified month in the tables, 3 variables are given:

(1) L = power in the Box-Cox transformation

(2) M = median

(3) S = generalized coefficient of variation


When L is not equal to 0:


Z-score for a value =

= ((((value) / M) ^ (L)) - 1) / (L * S)

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