Differential features of familial short stature and constitutional delay of growth and puberty

Feature	Familial short stature	Constitutional delay
Parents' stature	Small (1 or both)	Average
Parents' puberty	Usual timing	Often delayed
Birth length	Normal or low-normal	Normal
Growth (0 to 2 years)	Normal	Slow from mid-infancy to mid-childhood
Growth (2 years to puberty)	Normal	Slow
Bone age	Normal	Delayed
Timing of puberty	Normal	Delayed
Pubertal growth	Rate low-normal	Growth spurt delayed, rate slightly diminished
Adult height	Short	Normal

Graphic 51582 Version 6.0

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