Stature Regression Equation
Definition
A mathematical equation derived from a reference skeletal sample with known stature and long-bone measurements, used to estimate living stature from measured bone length. Of the form: Stature = (coefficient x bone length) + constant, with a standard error of estimate expressing the range of the prediction.
- Form
- Stature = (coefficient x bone length) + constant
- Input
- Measured long-bone length (e.g. femur, tibia)
- Error measure
- Standard error of estimate
- Derived from
- Reference skeletal sample with known stature and bone length
Common questions
Why can't one regression equation be used for every population?+
The coefficients are fitted to the proportions of the specific reference sample, and limb-to-stature ratios differ by ancestry and sex, so applying an equation built on one population to a different one introduces systematic bias unless a population-specific formula is used.
What does the standard error of estimate actually tell an examiner?+
It quantifies how much predicted stature typically deviates from true stature in the reference sample, letting the examiner report a plausible stature interval around the point estimate rather than a false single-value certainty.
Related terms
- Age-Related Stature Loss
- The decrease in living stature with age due to intervertebral disc compression and vertebral remodeling, approximately 0.10-0.12 cm per year after age...
- Auerbach-Ruff 2004 Method
- A body-mass estimation method using bi-iliac (maximum pelvic) breadth combined with stature, providing an alternative proxy when the femoral head is absent...
- Crural Index
- The ratio of tibia length to femur length, multiplied by 100. Varies systematically between populations: higher (relatively longer tibia) in tropical populations,...
- Femoral Head Diameter (FHD)
- The superoinferior diameter of the femoral head, measured at the widest point perpendicular to the neck axis. The primary skeletal proxy for...
- Maximum (Anatomical) Femur Length
- The bone length measured from the most superior point of the femoral head to the most inferior point of the femoral condyles...
- Mukherjee-Bandyopadhyay Equations
- Population-specific stature regression equations for Bengali Indian males and females, published in 1955 from cadaveric material at Calcutta Medical College. The male...
- Ruff-Scott-Walker 1997 Method
- The principal body-mass estimation method from skeletal remains, using femoral head diameter (and, in the Auerbach-Ruff 2004 extension, bi-iliac breadth combined with...
- Standard Error of Estimate (SEE)
- The statistical uncertainty around a regression-based stature estimate, representing the range within which approximately 68 per cent of individuals in the derivation...
- Trotter-Gleser Equations
- The foundational US stature regression equations published by Mildred Trotter and Goldine Gleser in 1952 (from WWII casualties) and revised in 1958...