Dietary interventions for perinatal depression and anxiety: a systematic review and meta-analysis of randomized controlled trials.

BACKGROUND: Dietary interventions are a widely available mediation for depression and anxiety among pregnant and/or postpartum (i.e., perinatal) persons, but their effectiveness is not well known. OBJECTIVES: We performed a systematic review and meta-analysis to assess the effectiveness of dietary interventions for the treatment of perinatal depression and/or anxiety. METHODS: We searched MEDLINE, EMBASE, PsycINFO, CINAHL, and Web of Science from their inception to 2 November, 2022. Studies were included if they were available in English and examined the effectiveness of a dietary intervention for perinatal depression and/or anxiety in a randomized controlled trial. RESULTS: Our search identified 4246 articles, of which 36 were included and 28 were eligible for meta-analysis. Random-effects meta-analyses were performed. Polyunsaturated fatty acids (PUFAs) were not found to improve symptoms of perinatal depression compared to control conditions [standardized mean differences (SMD): -0.11; 95% CI: -0.26 to 0.04]. These results neither changed when examined during pregnancy or the postpartum period separately nor varied according to the fatty acid (FA) ratio. Elemental metals (iron, zinc, and magnesium) were also not found to be superior to placebo (SMD: -0.42; 95% CI: -1.05 to 0.21), although vitamin D yielded a small to medium effect size improvement (SMD: -0.52; 95% CI: -0.84 to -0.20) in postpartum depression. Iron may help in those with confirmed iron deficiency. Narrative synthesis was performed for studies ineligible for meta-analyses. CONCLUSIONS: Despite their widespread popularity, PUFAs and elemental metals do not appear to effectively reduce perinatal depression. Vitamin D taken in doses of 1800-3500 International Units per day may be, to some extent, promising. Additional high-quality, large-scale randomized controlled trials are needed to determine the true effectiveness of dietary interventions on perinatal depression and/or anxiety. This study was registered at PROSPERO (registration date: 5 July, 2020; CRD42020208830).

Cognitive and Mental Health of Young Mothers' Offspring: A Meta-analysis.

BACKGROUND AND OBJECTIVES: The nature and magnitude of the cognitive and mental health risks among the offspring of young mothers is not fully understood. Our objective is to examine the risk of mental disorders in these offspring. METHODS: Five databases (Medline, Embase, Web of Science, PsycINFO, and CINAHL) were searched from their inceptions until February 2022. Studies were eligible if they assessed offspring of young mothers (<21 years), contained a control group, and assessed any cognitive and/or mental health outcomes. Random-effects meta-analysis was used to generate standardized mean differences (SMDs) in infants (0-3 years), children (4-9), adolescents (10-19), and adults (20+). Methodological bias was assessed using the Newcastle-Ottawa Scale. RESULTS: 51 outcomes were meta-analyzed. Levels of cognitive and learning problems were higher among the infants (SMD = 0.30 [95% confidence interval 0.0-0.55]) and adolescents (SMD = 0.43 [0.24 to 0.62]) of young mothers. Adolescents had more symptoms of delinquency (SMD = 0.24 [0.12 to 0.36]). As adults, they are more often convicted of violent crimes (SMD = 0.36 [0.22 to 0.50]). Internalizing symptoms were higher in these offspring in childhood (SMD = 0.29 [0.14 to 0.45]) and adulthood (SMD = 0.35 [0.34 to 0.36]). This review uses unadjusted data and is thus unequipped to infer causality. Studies have high attrition and rely heavily on self-report. CONCLUSIONS: Young mothers' offspring have more cognitive, externalizing, and internalizing problems across the lifespan than individuals born to mothers ≥21 years of age. They may benefit from early detection and support.

Systematic Review and Meta-analysis: First Nations, Inuit, and Métis Youth Mental Health.

OBJECTIVE: The ongoing effects of colonialism disproportionately place Indigenous youth at risk for mental health challenges. This meta-analysis examined lifetime and past-year prevalence estimates of mental health challenges among First Nations, Inuit, and Métis youth in Canada. METHOD: Five electronic databases were searched from their inceptions until June 17, 2021. Studies were included if they assessed mental health challenges among First Nations, Inuit, and/or Métis youth (≤18 years old). Risk of bias was assessed using the Newcastle-Ottawa Scale. RESULTS: A total of 28 articles were eligible. Sixteen studies contained data on First Nations, 2 on Inuit, one on Métis, and 10 aggregated Indigenous participants. Among First Nations participants, pooled prevalence estimates for past-year suicidality (8.9%), mood and/or anxiety (<2.9%), attention-deficit/hyperactivity (2.9%), oppositional defiant (8.8%), and conduct (12.8%) disorder diagnoses were identified. Limited studies containing Inuit, Métis, and aggregated Indigenous participants also found high levels of disruptive disorder symptoms. Data were very limited for lifetime prevalence estimates. Studies assessed to have a moderate or high methodological risk of bias (k = 19) or using measures that are not yet culturally validated (k = 25) may contribute to inaccuracies in prevalence estimates. CONCLUSION: Existing data suggest that Indigenous youth have a low prevalence of mental health challenges, with the exception of disruptive behaviors. Future studies should use culturally validated tools and partner with Indigenous communities to ensure optimal identification of mental health challenges.

Evaluating the effectiveness and quality of mobile applications for perinatal depression and anxiety: A systematic review and meta-analysis.

BACKGROUND: Our objectives were to assess: (1) the effectiveness of existing mHealth apps for reducing symptoms of maternal depression and/or anxiety during the prenatal period and/or the first year postpartum, and (2) the app quality of commercially available apps targeting perinatal depression and/or anxiety. METHODS: To address Objective 1, we searched five electronic databases (MEDLINE, CINAHL, PsycINFO, Web of Science, and Embase) from their inception until May 3rd, 2021. For the second objective, we searched Google Play and Apple App Stores in the United States, United Kingdom, Canada, and Australia until May 3rd, 2021. RESULTS: Our search identified 3,897 articles, seven of which were meta-analyzed. mHealth apps did not improve perinatal depression (SMD, -0.39; 95% CI, -0.80 to 0.03) or anxiety (SMD, 0.01; 95% CI, -0.13 to 0.16) within the first 3 months post-intervention or at 6 months post-intervention. Our search of app stores identified 74 commercially available apps, 37 of which were evaluated via MARS tool. Current apps for perinatal anxiety and/or depression were rated to be of moderate quality on the MARS (mean, 3.6/5). LIMITATIONS: There is a small number of overall studies in this field and the individual studies have methodological limitations. Furthermore, few apps identified in our app store search have been clinically tested. CONCLUSION: Despite their widespread availability, mHealth apps do not appear to effectively reduce perinatal depression or anxiety, and few were subjectively rated to be of high quality. There is a need to develop higher quality mHealth apps and assess their potential to improve perinatal maternal mental health.