Fig. 3

Levels of markers of oxidative stress status in women grouped by maternal age; n = 40/group. Maternal serum at 28 weeks (A, C, E) and 36 weeks (B, D, F) gestation was quantified for: A, B Total Antioxidant Capacity (TAC), C, D 8-Isoprostane and E, F protein Carbonyl. Rate of change between 28 and 36 weeks’ gestation of: G Total Antioxidant Capacity (TAC) and H 8-Isoprostane. Data presented as median, interquartile range (box) and total range (whiskers). Analysed using Kruskal-Wallis with Dunn’s multiple comparisons or one-way ANOVA on transformed data. TAC was correlated with log 8-isoprostane at I 28 weeks and J 36 weeks using Spearman rank test (*p < 0.05, **p < 0.01), *** p < 0.001)