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. Author manuscript; available in PMC: 2020 Jun 1.
Published in final edited form as: Psychosom Med. 2019 Jun;81(5):464–476. doi: 10.1097/PSY.0000000000000698

Fig. 3. Ambulatory blood pressure over pregnancy as a function of gestational age and birth weight percentile.

Fig. 3

Statistically adjusting for perceived stress, lower birth weight percentile was associated with a more prominent U-shaped systolic (a) and diastolic (b) blood pressure trajectory over pregnancy. Gestational weeks were modeled continuously, and birth weight percentile was selected as an index with the effects of gestational age at birth and infant sex removed (64). Here results of the model are shown. 40th percentile was the sample mean and other percentiles shown are −1 SD, +1 SD and +2 SDs relative to the mean. These results indicate that a subtle U-shape may be predictive of healthy birth weight.