Publications by authors named "Maria Beatriz T Castro"
Background: There are difficulties in carrying out research in low-income urban communities, but the methodological challenges and suggestions on how to deal with them are often undocumented. The aims of this study are to describe the challenges of recruiting and enrolling low-income pregnant women with periodontitis to a clinical trial on vitamin D/calcium milk fortification and periodontal therapy and also to describe the patient-, study protocol- and setting-related factors related to women's ineligibility and refusal to participate in the study.
Methods: A mixed-method sequential exploratory design was applied.
Background: Adherence to unhealthy dietary patterns may alter the risk of mental disorders during pregnancy and the postpartum period.
Objective: To analyze the association between prepregnancy dietary patterns and prospective variations on anxiety symptoms from midpregnancy to early postpartum.
Methods: A prospective cohort of 207 healthy pregnant women was followed at 5 to 13, 20 to 26, and 30 to 36 gestational weeks, and once at 30 to 45 days postpartum.
Objective: Whether a high-protein (HP) diet promotes body weight loss (BWL) when compared with a low-protein (LP) diet is still unclear. Therefore, we evaluated the effects of an HP diet on BWL during postpartum.
Methods: A food-frequency questionnaire with 81 items was applied at 6 mo after delivery to evaluate the diet of 430 postpartum women aged 18-45 y.