Gestational and postpartum weight change patterns in mothers with eating disorders.
BACKGROUND: Although pregnancy can be associated with adaptive changes in weight and eating behaviour for women with eating disorders, less is known about whether these changes are maintained in the postpartum period. We used a longitudinal design to examine gestational and postpartum weight trajectories in mothers with and without eating disorders in the Norwegian Mother and Child Cohort Study (MoBa) conducted by the Norwegian Institute of Public Health. METHODS: Fifty-six women reported anorexia nervosa (AN), 636 bulimia nervosa, 3327 binge eating disorder and 69 eating disorder not otherwise specified, purging type. The referent group included 61,233 mothers with no eating disorder. We used a mixed effects model to predict weight change over time by eating disorder subtype. RESULTS: Mothers with AN, bulimia nervosa, binge eating disorder and eating disorder not otherwise specified had greater increases in body mass index (BMI) during pregnancy and greater decreases in BMI over the first 6 months postpartum. Women with AN shifted from the underweight BMI range before pregnancy to the normal weight range at 36 months postpartum CONCLUSIONS: Patterns of maternal weight gain and retention during the perinatal period vary across eating disorder subtype and warrant clinical attention.
Zerwas, SC; Von Holle, A; Perrin, EM; Cockrell Skinner, A; Reba-Harrelson, L; Hamer, RM; Stoltenberg, C; Torgersen, L; Reichborn-Kjennerud, T; Bulik, CM
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