Figure 3.

Isoprostane levels tended to decrease with pregnancy at low (A) or high (B) altitude in Andeans but not Europeans. At low altitude isoprostanes were higher in European than Andean women at 20 and 36 weeks of pregnancy. Altitude had no effect on isoprostane levels in Andeans at any time but levels were lower at high than low altitude in Europeans at 20 and 36 weeks (both p < 0.05). Significant differences (p < 0.05) between ancestry groups are marked with an asterisk (*); trends (0.05 < p < 0.10) are marked with a cross symbol (^†).