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Fig. 2 | Biology of Sex Differences

Fig. 2

From: Sex differences in uterine artery Doppler during gestation in pregnancies complicated by placental dysfunction

Fig. 2

Average uterine artery pulsatility index over gestation. a Between the normal (green) and complicated pregnancies (orange), there were significant differences in the uterine artery pulsatility index (p < 0.0001) and in the rate of change in the uterine artery pulsatility index with gestation (p = 0.0003). b Between the normal (gray: female, black: male) and complicated pregnancies (red: female, blue: male), there were significant gestational age-related sex differences (p < 0.0001). The change in uterine artery pulsatility index over gestation was estimated by the slope of the regression. The male complicated pregnancy group had a higher slope of the line (−0.044 ± 0.005) compared to the other groups (complicated pregnancy female: −0.021 ± 0.005, normal pregnancy male: −0.022 ± 0.002, normal pregnancy female: −0.023 ± 0.002) (p < 0.0001). The shaded gray areas represent 95% confidence intervals

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