Fathers, grandmothers, and other family members’ influence on maternal, infant, and young child nutrition (MIYCN) is widely recognized, yet synthesis of the effectiveness of engaging them to improve nutrition practices during the first 1000 d is lacking. We examined the impact of behavioral interventions to engage family members in MIYCN in low- and middle-income countries through a mixed-methods systematic review. We screened 5733 abstracts and included 35 peer-reviewed articles on 25 studies (16 with quantitative and 13 with qualitative data). Most quantitative studies focused on early breastfeeding, primarily engaging fathers or, less often, grandmothers. Most found positive impacts on exclusive breastfeeding rates and family members’ knowledge and support. The few quantitative studies on complementary feeding, maternal nutrition, and multiple outcomes also suggested benefits. Qualitative themes included improved nutrition behaviors, enhanced relationships, and challenges due to social norms. Interventions engaging family members can increase awareness and build support for MIYCN, but more rigorous study designs are needed. This systematic review is registered at PROSPERO as CRD42018090273, https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=90273.
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The influence of fathers, grandmothers and other family members on maternal, infant and young child nutrition practices has been well documented for decades, yet many social and behavioural interventions continue to reach only mothers. While recent guidelines recommend involving fathers, grandmothers and other family members in maternal and child nutrition, we lack a comprehensive review of interventions that have engaged them. This scoping review aimed to address this gap by describing social and behavioural interventions to engage family members in maternal and child nutrition in low‐ and middle‐income countries. We systematically searched PubMed, Scopus, Web of Science, Global Health and CINAHL for peer‐reviewed studies meeting inclusion criteria. We screened 6,570 abstracts, evaluated 179 full‐text articles, and included 87 articles from 63 studies. Studies reported a broad range of approaches to engage fathers, grandmothers and other family members to support maternal nutrition (
n
= 6); breastfeeding (
n
= 32); complementary feeding (
n
= 6) and multiple maternal and child nutrition practices (
n
= 19). Interventions were facility and community based; included individual and group‐based interpersonal communication, community mobilization, mass media and mHealth; and reached mothers and family members together or separately. Most interventions were located within the health sector; rare exceptions included nutrition‐sensitive agriculture, social protection, early child development and community development interventions. Few interventions addressed gender norms, decision‐making, and family dynamics or described formative research or theories informing intervention design. These diverse studies can shed light on innovative programme approaches to increase family support for maternal and child nutrition.
Preeclampsia and preterm birth are among the most common pregnancy complications and are the leading causes of maternal and fetal morbidity and mortality in the United States. Adverse pregnancy outcomes are multifactorial in nature and increasing evidence suggests that the pathophysiology behind preterm birth and preeclampsia may be similar-specifically, both of these disorders may involve abnormalities in placental vasculature. A growing body of literature supports that exposure to environmental contaminants in the air, water, soil, and consumer and household products serves as a key factor influencing the development of adverse pregnancy outcomes. In pregnant women, toxic metals have been detected in urine, peripheral blood, nail clippings, and amniotic fluid. The placenta serves as a "gatekeeper" between maternal and fetal exposures, because it can reduce or enhance fetal exposure to various toxicants. Proposed mechanisms underlying toxicant-mediated damage include disrupted placental vasculogenesis, an up-regulated proinflammatory state, oxidative stressors contributing to prostaglandin production and consequent cervical ripening, uterine contractions, and ruptured membranes and epigenetic changes that contribute to disrupted regulation of endocrine and immune system signaling. The objective of this review is to provide an overview of studies examining the relationships between environmental contaminants in the US setting, specifically inorganic (eg, cadmium, arsenic, lead, and mercury) and organic (eg, per-and polyfluoroalkyl substances) toxicants, and the development of preeclampsia and preterm birth among women in the United States.
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