Table 2.

Mean (Kmean), standard deviation(σK), minimum (Kmin) and maximum(Kmax) of the ratio K of the internal to external diameter of separate human femora measured at the mid-points of the shafts with evaluation of their radiographs

Separate human femora
ViewKmeanσKKminKmax
All (N=107=52f+55m) Posterior 0.498 0.085 0.345 0.732
Medial 0.589 0.070 0.442 0.783
Subadults (N=33=18f+15m) Posterior 0.549 0.075 0.379 0.685
Medial 0.585 0.056 0.458 0.709
Adults (N=28=18f+10m) Posterior 0.462 0.052 0.379 0.610
Medial 0.589 0.070 0.480 0.783
Old people (N=46=16f+30m) Posterior 0.485 0.093 0.345 0.732
Medial 0.592 0.081 0.442 0.725
Separate human femora
ViewKmeanσKKminKmax
All (N=107=52f+55m) Posterior 0.498 0.085 0.345 0.732
Medial 0.589 0.070 0.442 0.783
Subadults (N=33=18f+15m) Posterior 0.549 0.075 0.379 0.685
Medial 0.585 0.056 0.458 0.709
Adults (N=28=18f+10m) Posterior 0.462 0.052 0.379 0.610
Medial 0.589 0.070 0.480 0.783
Old people (N=46=16f+30m) Posterior 0.485 0.093 0.345 0.732
Medial 0.592 0.081 0.442 0.725

N, number of femora investigated (f, female; m, male). Subadults,age 0–20 years; adults, age 21–50 years; old people, age above 50 years. Note that after rounding of the numerical data, the mean and standard deviation for the medial view of adult femora are the same as the overall mean and standard deviation, for example. This is an accidental coincidence, and these identical values are real, and not the result of a typo.

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