Psychosocial factors, mental health symptoms, and disordered eating during pregnancy.

Objective: The impact of disordered eating extends beyond women with a diagnosed eating disorder. Scarce research to date has investigated disordered eating in a general perinatal population, including the complex interplay between psychosocial factors, mental health symptoms, and disordered eating at numerous pregnancy periods. Specifically, maternal attitudes and relationship satisfaction are psychosocial factors that have been identified as a gap in the literature.

Method: Pregnant women completed an online questionnaire between 18 and 24 weeks gestation (T1, n = 258) and again between 30 and 32 weeks gestation (T2, n = 159). Structural equation modeling was used to test an interrelated model of psychosocial factors-attitudes to pregnancy, attitudes to motherhood, and relationship satisfaction-and disordered eating, mediated by either depressive or anxiety symptoms. Invariance testing examined whether model weights differed between primiparous and multiparous women at each time point.

Results: While at T1 and T2, there were significant direct associations between psychosocial factors and disordered eating, only at T2 were the associations between psychosocial factors and disordered eating mediated by depressive and anxiety symptoms. Furthermore, at T2, multiparous women were at greater risk of an association between maladaptive attitudes to pregnancy and motherhood, depressive symptoms, and disordered eating.

Discussion: The present study highlights the need to investigate the relationships between psychosocial factors and disordered eating, while accounting for the unique antenatal needs of women during different pregnancy periods and across differing parity. The mediating effect of depressive and anxiety symptoms have implications for future research and clinical care.