PGF and Stillbirth: By contrast, significantly lower concentrations of PlGF throughout gestation were found in those destined to have SGA births [χ2(1) = 7.89, P < .005] (Figure 3, C) and in those destined to have stillbirths [χ2(1) = 21.59, P < .0001] (Figure 3, D, and Table 3).