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. Author manuscript; available in PMC: 2019 Aug 1.
Published in final edited form as: Bone Joint J. 2018 Aug;100-B(8):1106–1111. doi: 10.1302/0301-620X.100B8.BJJ-2017-1489.R1

Table I.

Derived equations to predict years from 90% from final height

Known variables Equation
Chronological age, gender: 2.002 + (0.843 × chronological age) + (−0.342 × gender)
Greulich and Pyle bone age, gender 3.193 + (0.776 × Greulich and Pyle bone age) + (−0.903 × gender)
Chronological age, gender, central peak value 3.495 + (15.409 × central peak value) + (0.658 × chronological age) + (−0.661 × gender)
Greulich and Pyle bone age, chronological age, gender 1.92 + (0.453 × chronological age) + (0.41 × Greulich and Pyle bone age) + (−0.535 × gender)
Greulich and Pyle bone age, chronological age, gender, central peak value 2.692 + (7.836 × central peak value) + (0.419 × chronological age) + (0.347 × Greulich and Pyle bone age) + (−0.668 × gender)