Height
also see Weight gain

• At birth: 50 cm (20 inches)
• at 1 Year: 75 cm (30 inches)
• girls 2 yrs, boys 2.5 years: age at which half adult height is reached
• Double birth height by 3-4 years
• Average height: 2-12 years:  6 x age + 77  (2.5 x age + 30)
• (From age 4 to puberty, if growth is < 4.5 cm/year, that's abnormal)

Growth in length: cm/month

• 0-3 mos: 3.5
• 3-6 mos: 2
• 6-9 mos: 1.5
• 9-12 mos: 1.2
• 1-3 years: 1

Mean Parental Height vs Target Height

• For a girl: (father’s height + mother’s height - 13cm) divided by 2
• For a boy: (father’s height + mother’s height + 13cm) divided by 2
• Target Height = MPH +/- 10 cm (but most Endocrinologist say +/- 5cm)

At birth, growth velocity is 50 cm/year
In first year, should grow 25 cm/year (10 inches)
In 2nd year, grow 12.5 cm/year (5 inches)
In childhood, grow 6.25 cm/yr (2.5 inches)
Teen boys, 15-38 cm (6-15 inches)
Teen girls, 15-25 cm (6-12 inches)

Growth Velocity: normal = parallels normal growth curve; abnormal/decreased = gets farther away from normal growth curve

Upper-to-lower segment ratio (normal: 1.7 at birth, 1.4 at age 2, 1 at age 10, and 0.9 in adults)