A, hypoxaemia, P < 0.0001. B, hypoglycaemia, P = 0.0002. C, growth restriction (low body weight), P < 0.0001. D, no change in heart to body weight ratio, P = 0.695. E, asymmetric growth (increased brain-to-liver ratio), P < 0.0001. Average PaO2 and glucose reflect the 10-day average of each. n = 19 control, n = 19 IUGR. Means ± SD, *P < 0.05.