Fig. 3: Sexual dimorphism in the linear pelvic dimensions.
From: Sexual dimorphism of the human fetal pelvis exists at the onset of primary ossification

a Least squares mean and 95% confidence intervals for the sex differences in the linear dimensions of the greater and lesser pelvis. Positive least squares mean values indicate that females exhibit larger measurements. The asterisks and black circles indicate significant differences (P < 0.05). The dataset comprised 72 human fetus specimens. b Scatter plot of the anteroposterior diameters of the pelvic inlets (#12). The male and female regression lines are represented in blue and red, respectively. c Cranial view of the reconstructed pelvic inlet in males (CRL, 64 mm) and females (CRL, 65 mm). The light blue areas indicate the areas of primary ossification. Scale bar, 2 mm. CRL crown-rump length.