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Association of breastfeeding duration with carotid intima-media thickness in later life: a systematic review and meta-analysis.
Pérez-Roncero, GR, López-Baena, MT, Sánchez-Prieto, M, Chedraui, P, Pérez-López, FR
Gynecological endocrinology : the official journal of the International Society of Gynecological Endocrinology. 2021;(9):778-784
Abstract
OBJECTIVE To assess the relationship of breastfeeding duration with maternal ultrasound carotid intima-media thickness (CIMT) in later life. METHODS PubMed, Scopus, Web of Science, Embase, and Cochrane Central database searching up to December 15, 2020, for eligible studies that reported on the breastfeeding duration and ultrasound measurement of CIMT in later life. The exposed group corresponded to breastfeeding duration ≥ 6 months whereas the control group was women with breastfeeding of shorter duration or nil breastfeeding. The methodological quality of reviewed articles was appraised using the Newcastle-Ottawa Scale (NOS). Results are reported as the mean difference (MD) or the standardized MD (SMD) and their 95% confidence intervals (CIs). The study was registered in the PROSPERO database. RESULTS Of 532 unique studies, three studies met inclusion criteria including 1721 women with a mean age ranging between 36.6 ± 6.9 and 55.7 ± 5.3 years, comparing breastfeeding duration ≥ 6 months versus 1-5 months (NOS: 7-8). Common CIMT was lower in women who breastfed for a longer duration (SMD = -0.10, 95% CI -0.20 to -0.00). Circulating HDL-cholesterol was higher in women with longer breastfeeding duration (MD = 3.25, 95% CI 0.88-5.61). There were no significant differences for total cholesterol, LDL-cholesterol, triglycerides, glucose, and blood pressure between breastfeeding 6 or more months and the control group. CONCLUSIONS The available studies showed lower CIMT and higher HDL-cholesterol levels in women who breastfed for 6 or more months as compared to controls.
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Effect of postpartum depression on exclusive breast-feeding practices in sub-Saharan Africa countries: a systematic review and meta-analysis.
Woldeyohannes, D, Tekalegn, Y, Sahiledengle, B, Ermias, D, Ejajo, T, Mwanri, L
BMC pregnancy and childbirth. 2021;(1):113
Abstract
BACKGROUND Postpartum depression (PPD) is a serious mood disorder that affects behavioural, physical and mental health of women and newborn after childbirth. Although a wide range of research have been conducted on maternal and infant health outcomes, the effect of postpartum depression on exclusive breastfeeding practices remains ambiguous, and needs addressing. The aim of this study was to assess the effect of postpartum depression on exclusive breast feeding practices in sub-Saharan African countries. METHODS PubMed, Google Scholar, Science Direct and Cochrane Library were systematically searched for relevant articles published between 2001 and 2020. STATA version 14 was used to calculate the pooled odd ratio with 95% confidence intervals (95% CI). The DerSimonian and Laird random effects meta-analysis was used to measure the effect of postpartum depression on exclusive breast feeding practices. The heterogeneity and publication bias were assessed by using I2 test statistics and Egger's test, respectively. This review was reported according to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis. RESULT A total of 1482 published articles and gray literatures were retrieved from different databases. Additional articles were identified from the reference list of identified reports and articles. After assessment of obtained articles, studies not meeting the inclusion criteria were excluded. Twenty six studies involving 30,021 population met the inclusion criteria were included in this review. In sub Saharan Africa the overall estimated level of postpartum depression was 18.6% (95% CI: 13.8, 23.4). This review found that postpartum depression had no significant effect on exclusive breast feeding practices (OR = 0.46, 95% CI: 0.18, 1.14). CONCLUSION In Sub Saharan Africa, the prevalence of postpartum depression was lower than the report of World Health Organization for developing Country in 2020. This review reveled that maternal postpartum depression has no significant effect on exclusive breast feeding practices. Thus, the investigators strongly recommend the researchers to conduct primary studies using strong study design in sub-Saharan Africa.
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3.
Interventions for preventing mastitis after childbirth.
Crepinsek, MA, Taylor, EA, Michener, K, Stewart, F
The Cochrane database of systematic reviews. 2020;(9):CD007239
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Abstract
BACKGROUND Despite the health benefits of breastfeeding, initiation and duration rates continue to fall short of international guidelines. Many factors influence a woman's decision to wean; the main reason cited for weaning is associated with lactation complications, such as mastitis. Mastitis is an inflammation of the breast, with or without infection. It can be viewed as a continuum of disease, from non-infective inflammation of the breast to infection that may lead to abscess formation. OBJECTIVES To assess the effectiveness of preventive strategies (for example, breastfeeding education, pharmacological treatments and alternative therapies) on the occurrence or recurrence of non-infective or infective mastitis in breastfeeding women post-childbirth. SEARCH METHODS We searched Cochrane Pregnancy and Childbirth's Trials Register, ClinicalTrials.gov, the WHO International Clinical Trials Registry Platform (ICTRP) (3 October 2019), and reference lists of retrieved studies. SELECTION CRITERIA We included randomised controlled trials of interventions for preventing mastitis in postpartum breastfeeding women. Quasi-randomised controlled trials and trials reported only in abstract form were eligible. We attempted to contact the authors to obtain any unpublished results, wherever possible. Interventions for preventing mastitis may include: probiotics, specialist breastfeeding advice and holistic approaches. DATA COLLECTION AND ANALYSIS Two review authors independently assessed trials for inclusion and risk of bias, extracted data and assessed the certainty of the evidence using GRADE. MAIN RESULTS We included 10 trials (3034 women). Nine trials (2395 women) contributed data. Generally, the trials were at low risk of bias in most domains but some were high risk for blinding, attrition bias, and selective reporting. Selection bias (allocation concealment) was generally unclear. The certainty of evidence was downgraded due to risk of bias and to imprecision (low numbers of women participating in the trials). Conflicts of interest on the part of trial authors, and the involvement of industry funders may also have had an impact on the certainty of the evidence. Most trials reported our primary outcome of incidence of mastitis but there were almost no data relating to adverse effects, breast pain, duration of breastfeeding, nipple damage, breast abscess or recurrence of mastitis. Probiotics versus placebo Probiotics may reduce the risk of mastitis more than placebo (risk ratio (RR) 0.51, 95% confidence interval (CI) 0.35 to 0.75; 2 trials; 399 women; low-certainty evidence). It is uncertain if probiotics reduce the risk of breast pain or nipple damage because the certainty of evidence is very low. Results for the biggest of these trials (639 women) are currently unavailable due to a contractual agreement between the probiotics supplier and the trialists. Adverse effects were reported in one trial, where no woman in either group experienced any adverse effects. Antibiotics versus placebo or usual care The risk of mastitis may be similar between antibiotics and usual care or placebo (RR 0.37, 95% CI 0.10 to 1.34; 3 trials; 429 women; low-certainty evidence). The risk of mastitis may be similar between antibiotics and fusidic acid ointment (RR 0.22, 95% CI 0.03 to 1.81; 1 trial; 36 women; low-certainty evidence) or mupirocin ointment (RR 0.44, 95% CI 0.05 to 3.89; 1 trial; 44 women; low-certainty evidence) but we are uncertain due to the wide CIs. None of the trials reported adverse effects. Topical treatments versus breastfeeding advice The risk of mastitis may be similar between fusidic acid ointment and breastfeeding advice (RR 0.77, 95% CI 0.27 to 2.22; 1 trial; 40 women; low-certainty evidence) and mupirocin ointment and breastfeeding advice (RR 0.39, 95% CI 0.12 to 1.35; 1 trial; 48 women; low-certainty evidence) but we are uncertain due to the wide CIs. One trial (42 women) compared topical treatments to each other. The risk of mastitis may be similar between fusidic acid and mupirocin (RR 0.51, 95% CI 0.13 to 2.00; low-certainty evidence) but we are uncertain due to the wide CIs. Adverse events were not reported. Specialist breastfeeding education versus usual care The risk of mastitis (RR 0.93, 95% CI 0.17 to 4.95; 1 trial; 203 women; low-certainty evidence) and breast pain (RR 0.93, 95% CI 0.36 to 2.37; 1 trial; 203 women; low-certainty evidence) may be similar but we are uncertain due to the wide CIs. Adverse events were not reported. Anti-secretory factor-inducing cereal versus standard cereal The risk of mastitis (RR 0.24, 95% CI 0.03 to 1.72; 1 trial; 29 women; low-certainty evidence) and recurrence of mastitis (RR 0.39, 95% CI 0.03 to 4.57; 1 trial; 7 women; low-certainty evidence) may be similar but we are uncertain due to the wide CIs. Adverse events were not reported. Acupoint massage versus routine care Acupoint massage probably reduces the risk of mastitis compared to routine care (RR 0.38, 95% CI 0.19 to 0.78;1 trial; 400 women; moderate-certainty evidence) and breast pain (RR 0.13, 95% CI 0.07 to 0.23; 1 trial; 400 women; moderate-certainty evidence). Adverse events were not reported. Breast massage and low frequency pulse treatment versus routine care Breast massage and low frequency pulse treatment may reduce risk of mastitis (RR 0.03, 95% CI 0.00 to 0.21; 1 trial; 300 women; low-certainty evidence). Adverse events were not reported. AUTHORS' CONCLUSIONS There is some evidence that acupoint massage is probably better than routine care, probiotics may be better than placebo, and breast massage and low frequency pulse treatment may be better than routine care for preventing mastitis. However, it is important to note that we are aware of at least one large trial investigating probiotics whose results have not been made public, therefore, the evidence presented here is incomplete. The available evidence regarding other interventions, including breastfeeding education, pharmacological treatments and alternative therapies, suggests these may be little better than routine care for preventing mastitis but our conclusions are uncertain due to the low certainty of the evidence. Future trials should recruit sufficiently large numbers of women in order to detect clinically important differences between interventions and results of future trials should be made publicly available.
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Systematic review and meta-analysis on the use of probiotic supplementation in pregnant mother, breastfeeding mother and infant for the prevention of atopic dermatitis in children.
Amalia, N, Orchard, D, Francis, KL, King, E
The Australasian journal of dermatology. 2020;(2):e158-e173
Abstract
Probiotic supplementation may decrease the risk of allergic disease; however, there are differences between studies, such as the type of probiotic, the route or the duration of supplementation. Therefore, determining the most effective probiotic strain/s, route of administration and duration for clinical recommendation has been difficult. An electronic systematic literature search was undertaken between using Ovid MEDLINE, Embase, PubMed and Cochrane. Risk ratio (RR) and 95% confidence interval (CI) are presented for the studies. PEDro scale and Newcastle-Ottawa Scale were used to assess the quality of the included studies. A total of 21 studies met the inclusion criteria. Strain-specific sub-meta-analyses indicated that single strains are not as effective as probiotic mixtures and administration to a combination of pregnant mothers, breastfeeding mothers and infants had a reduced risk in the onset of atopic dermatitis in children. Our systematic review and meta-analysis showed that a mixture of probiotic supplementation given to the mother in pregnancy and continuing while breastfeeding and also to the infant in children classified as high-risk for atopic dermatitis and non-high-risk groups is the most efficacious in reducing the risk of incidence of atopic dermatitis in children.
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What are the implications of Zika Virus for infant feeding? A synthesis of qualitative evidence concerning Congenital Zika Syndrome (CZS) and comparable conditions.
Carroll, C, Booth, A, Campbell, F, Relton, C
PLoS neglected tropical diseases. 2020;(10):e0008731
Abstract
If a mother contracts the Zika Virus before or during pregnancy, then there is a risk of the child developing Congenital Zika Syndrome (CZS). An infant can then experience problems feeding due to the specific physical and developmental consequences of Congenital Zika Syndrome (CZS), such as microcephaly, dysphagia and an increased likelihood of choking. This qualitative evidence synthesis accesses direct and indirect evidence to inform WHO infant feeding guidelines. We conducted a qualitative evidence synthesis of the values and preferences of relevant stakeholders (e.g. pregnant women, mothers, family members and health practitioners) concerning infant (0-2 years) feeding in the presence of: 1) CZS (the'direct evidence'); 2) severe disability and nonprogressive, chronic encephalopathies ('indirect evidence'), which present with similar problems. Authors' findings were extracted, synthesised using thematic synthesis techniques, and confidence in the findings were assessed using GRADE-CERQual. Six CZS-specific studies (all from Brazil) were included in the direct evidence, with a further eight indirect studies reporting feeding difficulties in infants with severe disability and nonprogressive, chronic encephalopathies. Included studies highlighted: breast-feeding represented the preference for all mothers in the studies in both reviews, and the inability to do so affected bonding between parents and child, and generated fear and anxiety relating to feeding choices, especially around the risks of choking and swallowing; the perception that health professionals were often unable to offer appropriate advice; the potential value of training; and a strong desire to achieve individual maternal autonomy in infant feeding decisions. Confidence in most findings ranged from low to moderate. The evidence base has limitations, but consistently reported that parents of children with feeding difficulties due to Congenital Zika Syndrome, or similar, need information, advice and counselling, and substantial emotional support. Parents perceive that these needs are often neither recognised nor satisfied; optimal feeding and support strategies for this population have not yet been identified.
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Breastfeeding from mothers carrying HBV would not increase the risk of HBV infection in infants after proper immunoprophylaxis.
Xiao, F, Lan, A, Mo, W
Minerva pediatrica. 2020;(2):109-115
Abstract
INTRODUCTION Previously meta-analysis had different conclusions about the role of breastfeeding in mother-to-child transmission (MTCT) of hepatitis B virus (HBV). We aimed to carry out an updated meta-analysis based on current published evidence to explore that whether breastfeeding increase the risk of HBV infection from mothers carrying HBV after proper immunoprophylaxis in the infants or not. EVIDENCE ACQUISITION Databases searched from January 1st,2000 to August 1st,2016 included PubMed searching engine, Cochrane Library, Embase database, Chinese National Knowledge Infrastructure, VIP Chinese database, and Wanfang Chinese database. EVIDENCE SYNTHESIS 17 studies were incorporated into our meta-analysis. Our result showed that there was no significant difference between the breastfeeding group and the non-breastfeeding group (ORs=1.01, 95%CI: 0.75-1.36, I2=0). Further, there was no significant difference between the cases and controls in HBVac group (ORs=1.08, 95%CI: 0.42-2.76, I2=0) and in HBIG combined with HBVac group (ORs=0.97, 95%CI: 0.68-1.37, I2=0). CONCLUSIONS Our update meta-analysis indicated that breastfeeding would not increase the risk of HBV injection from mothers carrying HBV after proper immunoprophylaxis in the infants. The results suggest that mother carrying HBV can breastfeed their babies after proper immunoprophylaxis in the infants.
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Association of breastfeeding status with risk of autism spectrum disorder: A systematic review, dose-response analysis and meta-analysis.
Ghozy, S, Tran, L, Naveed, S, Quynh, TTH, Helmy Zayan, A, Waqas, A, Sayed, AKH, Karimzadeh, S, Hirayama, K, Huy, NT
Asian journal of psychiatry. 2020;:101916
Abstract
Current evidence indicates that nutritional status in newborns, especially the duration of breastfeeding, plays a key role in the pathogenesis of autism spectrum disorder. We aimed to systematically review and meta-analyze relevant studies with findings of an association between autism spectrum disorder and breastfeeding patterns, and undertook an extensive dose-response analysis to interpret the results more accurately. Ten electronic databases and manual search of reference lists were used to identify relevant studies in September 2018. Dose-response and conventional meta-analysis were conducted by the random-effects model. The study protocol was registered in PROSPERO with CRD42016043128. Seven case-control studies were found in which the association between ever breastfeeding and risk of autism spectrum disorder was investigated. We found a 58 % decrease in the risk of autism spectrum disorder with ever breastfeeding and a 76 % decrease in the risk with exclusive breastfeeding. According to our dose-response meta-analysis, breastfeeding for 6 months was associated with a 54 % reduction in the risk. In the conventional meta-analysis, breastfeeding for 12-24 months was associated with the most significant reduction in the risk of autism spectrum disorder. Our results highlight the importance of breastfeeding to decrease the risk of autism spectrum disorder.
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Impact of maternal mental health interventions on child-related outcomes in low- and middle-income countries: a systematic review and meta-analysis.
Tol, WA, Greene, MC, Lasater, ME, Le Roch, K, Bizouerne, C, Purgato, M, Tomlinson, M, Barbui, C
Epidemiology and psychiatric sciences. 2020;:e174
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AIMS: Observational studies have shown a relationship between maternal mental health (MMH) and child development, but few studies have evaluated whether MMH interventions improve child-related outcomes, particularly in low- and middle-income countries. The objective of this review is to synthesise findings on the effectiveness of MMH interventions to improve child-related outcomes in low- and middle-income countries (LMICs). METHODS We searched for randomised controlled trials conducted in LMICs evaluating interventions with a MMH component and reporting children's outcomes. Meta-analysis was performed on outcomes included in at least two trials. RESULTS We identified 21 trials with 28 284 mother-child dyads. Most trials were conducted in middle-income countries, evaluating home visiting interventions delivered by general health workers, starting in the third trimester of pregnancy. Only ten trials described acceptable methods for blinding outcome assessors. Four trials showed high risk of bias in at least two of the seven domains assessed in this review. Narrative synthesis showed promising but inconclusive findings for child-related outcomes. Meta-analysis identified a sizeable impact of interventions on exclusive breastfeeding (risk ratio = 1.39, 95% confidence interval (CI): 1.13-1.71, ten trials, N = 4749 mother-child dyads, I2 = 61%) and a small effect on child height-for-age at 6-months (std. mean difference = 0.13, 95% CI: 0.02-0.24, three trials, N = 1388, I2 = 0%). Meta-analyses did not identify intervention benefits for child cognitive and other growth outcomes; however, few trials measured these outcomes. CONCLUSIONS These findings support the importance of MMH to improve child-related outcomes in LMICs, particularly exclusive breastfeeding. Given, the small number of trials and methodological limitations, more rigorous trials should be conducted.
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Duration of Lactation and Maternal Risk of Metabolic Syndrome: A Systematic Review and Meta-Analysis.
Tørris, C, Bjørnnes, AK
Nutrients. 2020;(9)
Abstract
Cardiovascular disease (CVD) is the leading cause of death of women across all ages, and targeting modifiable risk factors, such as those comprised in metabolic syndrome (MetS) (e.g., waist circumference, lipid profile, blood pressure, and blood glucose), is of great importance. An inverse association between lactation and CVD has been suggested, and lactation may decrease the risk of MetS. This systematic review and meta-analysis examined how lactation may affect the development and prevalence of MetS in women. A literature search was performed using Cinahl, Embase, Web of Science, and PubMed. A total of 1286 citations were identified, and finally, ten studies (two prospective and eight cross-sectional) were included. Seven studies (two prospective and five cross-sectional) revealed associations between lactation and MetS, suggesting that breastfeeding might prevent or improve metabolic health and have a protective role in MetS prevention. This protective role might be related to the duration of lactation; however, a lack of controlling for potential confounders, such as parity, might inflict the results. The pooled effect was non-conclusive. Additional research is required to further explore the duration of lactation and its potential role in improving or reversing MetS and its components.
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Maternal breastfeeding and attention-deficit/hyperactivity disorder in children: a meta-analysis.
Tseng, PT, Yen, CF, Chen, YW, Stubbs, B, Carvalho, AF, Whiteley, P, Chu, CS, Li, DJ, Chen, TY, Yang, WC, et al
European child & adolescent psychiatry. 2019;(1):19-30
Abstract
Previous studies have suggested environmental factors may contribute to the risk of attention-deficit/hyperactivity disorder (ADHD). The current meta-analysis examined (1) the difference in the duration of maternal breastfeeding between children with and without ADHD, and (2) the association between maternal breastfeeding and ADHD in children. The data of individual studies were synthesized with a random-effects model. Eleven articles were included in this meta-analysis. Children with ADHD had significantly less breastfeeding duration than controls (Hedges' g = - 0.36, 95% confidence intervals (CIs) = - 0.61 to - 0.11, p = 0.005; difference in means: - 2.44 months, 95% CIs = - 3.17 to - 1.71, p < 0.001). In addition, the rates of non-exclusive breastfeeding in children with ADHD is significantly higher in "under 3 months" (odds ratio (OR) = 1.90, 95% CIs = 1.45 to 2.48, p < 0.001) but lower in "6 to 12 months" (OR = 0.69, 95% CIs = 0.49 to 0.98, p = 0.039) and "over 12 months" (OR = 0.58, 95% CIs = 0.35 to 0.97, p = 0.038) than controls. Children with ADHD received significantly higher rate of exclusive breastfeeding duration "under 3 months" (OR = 1.51, 95% CIs = 1.20 to 1.89, p < 0.001) but lower in "over 3 months" (OR = 0.52, 95% CIs = 0.29 to 0.95, p = 0.033) than controls. Furthermore, an association was found between non-breastfeeding and ADHD children (adjusted OR = 3.71, 95% CI = 1.94 to 7.11, p < 0.001). Our results suggest maternal breastfeeding is associated with a lower risk of ADHD in children. Future longitudinal research is required to confirm/refute these findings and to explore possible mechanisms underlying this association.