Figure 4. Individual mean length, surface area and volume of villous branches in terminal and directly preterminal position of IUGR placentas and clinically normal placentas.
The panels show mean, standard deviation and single values (one per placenta) of the mean length (ml) of the branches at terminal position bT0 (A; ml bT0; result of Kruskal-Wallis test: p = 0.123) and directly preterminal position bT1 (B; ml bT1; p = 0.001), of the mean surface area (msa) of the branches at positions bT0 (C; msa bT0; p = 0.027) and bT1 (D; msa bT1; p = 0.002), and of the mean volume (mv) of the branches in bT0 (E; mv bT0; p = 0.028) and bT1 (F; mv bT1; p = 0.008) in IUGR placentas and clinically normal placentas, with the latter split into placentas with either high (HT-normal) or low (LT-normal) tortuosity in bT1 as defined in Fig. 2. The terms bT0 and bT1 are defined in Fig. 1B. Results of statistical analysis (post-hoc Dunn’s tests for pairwise comparisons after Kruskal-Wallis test with p < 0.05) are indicated. *p < 0.05; **p < 0.01; ***p < 0.001.