Carl N Stephan’s scientific contributions

... Stephan then demonstrated a new guideline: the mouth width is equal to the width between the canines plus 57% of the distance between the canines and the pupils, which differed on average by 0.1 mm (SD, 3 mm) [55]. Stephan and Henneberg proved that intercanine width is about 75% of actual mouth width with the error of − 0.2 mm (SD, 3.5 mm) [56]. Wilkinson et al. indicated that interlimbus distance was the most reliable variable to predict the Table 8 Correlation coefficient between soft tissue and hard tissue of lips in females Content courtesy of Springer Nature, terms of use apply. ...

Reference:

Lip morphology estimation models based on three-dimensional images in a modern adult population from China

... Separate regressions (not shown) for women and men of own height (dependent variable) on the height of both parents as covariates produced an R square of 0.48 for women and 0.47 for men. The result supports studies noting that 10- 30% of the variability of adult height reflects socio-economic conditions, with the rest accounted for by heredity (Henneberg and van den Berg, 1990). For women, the parameter for the coefficient of variation of rainfall almost doubled from ~0.11 (columns [2][4]) to 0.20 (column [5]) after conditioning for heritable attributes. ...

Reference:

Rainfall amount and variability during gestation and early childhood and adult

... Seventh, we are aware of the difficulty in using contemporary WHO categories for BMI as a framework for historical data, as health-relevant risk cut-off points in BMI may have shifted over time [56] . Eighth, BMI is generally limited as indicator for body shape, and technical studies are still debating on the most adequate way of relating body height and weight [57][58][59][60]. Ninth, we cannot control for the fact that delayed physical growth may also be an explanatory factor. ...

Reference:

From Undernutrition to Overnutrition: The Evolution of Overweight and Obesity among Young Men in Switzerland since the 19th Century