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Results: 2

1.
Fig. 2

Fig. 2. Adjusted predicted probabilities of obstetric outcomes for main explanatory variables. From: Preconception Mental Health Predicts Pregnancy Complications and Adverse Birth Outcomes: A National Population-Based Study.

Figure 2 displays the adjusted average predicted probabilities of each of the three outcomes (any complication, non-live birth, and LBW, respectively) with respect to the main explanatory variables, controlling for maternal age, marital status, education, insurance, income, and the number of children in the household. The dashed lines on the chart represent the weighted prevalence estimates for each outcome. Delta method standard errors of the probabilities were used to construct 95% confidence intervals, which are represented by the vertical bars. Graphical depiction of the predicted probabilities of each outcome for all independent variables may be found in Appendix 3.

Whitney P. Witt, et al. Matern Child Health J. 2012 October;16(7):1525-1541.
2.
Fig. 1

Fig. 1. Conceptual framework of the preconception determinants of ddverse obstetric outcomes. From: Preconception Mental Health Predicts Pregnancy Complications and Adverse Birth Outcomes: A National Population-Based Study.

Figure 1 displays the conceptual framework that informs our work by combining Misra and colleagues’ framework of perinatal health, a life course developmental perspective, and a model of health determinants. As the perinatal framework posits that perinatal health and associated outcomes are influenced by cumulative effects of events across the lifespan and intergenerational effects, we display the trajectory of the maternal experience in this framework. The far left box represents distal determinants (including genetic, physical environment, social environment, and life events) that can impact outcomes through more proximal preconception determinants including behavior, physiology, and psychology, represented by the boxes within the circle. Specifically, our model illustrates that poor preconception mental health may increase the risk for several obstetric outcomes (far right box), while accounting for individual-level risk factors.

Whitney P. Witt, et al. Matern Child Health J. 2012 October;16(7):1525-1541.

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