Fig. 3

Bar graphs show the birthweight (a) and growth rate (b) of all MCDA twins. The growth rate was measured every two weeks by ultrasound after 28 gestational weeks. Statistical significance between eight comparisons (C1-C8) were determined using Student’s t-test (*p < 0.05; **p < 0.01; ***p < 0.001). List of abbreviations: MCDA = Monochorionic diamniotic; sIUGR = Selective intrauterine growth restriction; T1 = Normal umbilical artery flow; T2&3 = Abnormal umbilical artery flow; L = Larger twin; S = Smaller twin