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2.
J Nutr ; 150(4): 910-917, 2020 04 01.
Article in English | MEDLINE | ID: mdl-31875480

ABSTRACT

BACKGROUND: In contrast with the ample literature on within- and between-country inequalities in breastfeeding practices, there are no multi-country analyses of socioeconomic disparities in breastmilk substitute (BMS) consumption in low- and middle-income countries (LMICs). OBJECTIVE: This study aimed to investigate between- and within-country socioeconomic inequalities in breastfeeding and BMS consumption in LMICs. METHODS: We examined data from the Demographic Health Surveys and Multiple Indicator Cluster Surveys conducted in 90 LMICs since 2010 to calculate Pearson correlation coefficients between infant feeding indicators and per capita gross domestic product (GDP). Within-country inequalities in exclusive breastfeeding, intake of formula or other types of nonhuman milk (cow/goat) were studied for infants aged 0-5 mo, and for continued breastfeeding at ages 12-15 mo through graphical presentation of coverage wealth quintiles. RESULTS: Between-country analyses showed that log GDP was inversely correlated with exclusive (r = -0.37, P < 0.001) and continued breastfeeding (r = -0.74, P < 0.0001), and was positively correlated with formula intake (r = 0.70, P < 0.0001). Continued breastfeeding was inversely correlated with formula (r = -0.79, P < 0.0001), and was less strongly correlated with the intake of other types of nonhuman milk (r = -0.40, P < 0.001). Within-country analyses showed that 69 out of 89 did not have significant disparities in exclusive breastfeeding. Continued breastfeeding was significantly higher in children belonging to the poorest 20% of households compared with the wealthiest 20% in 40 countries (by ∼30 percentage points on average), whereas formula feeding was more common in the wealthiest group in 59 countries. CONCLUSIONS: BMS intake is positively associated with GDP and negatively associated with continued breastfeeding in LMICs. In most countries, BMS intake is positively associated with family wealth, and will likely become more widespread as countries develop. Urgent action is needed to protect, promote, and support breastfeeding in all income groups and to reduce the intake of BMS, in light of the hazards associated with their use.


Subject(s)
Developed Countries , Developing Countries , Income , Infant Formula , Breast Feeding , Female , Global Health , Humans , Infant , Infant, Newborn , Male , Mothers , Social Class , Socioeconomic Factors , Surveys and Questionnaires
3.
J Clean Prod ; 222: 436-445, 2019 Jun 10.
Article in English | MEDLINE | ID: mdl-31190697

ABSTRACT

Breastfeeding is one of the foundations of child health, development and survival. Breastmilk substitutes (BMS) are associated with negative influences on breastfeeding practices and subsequent health concerns and, as with all foods, production and consumption of BMS comes with an environmental cost. The carbon footprint (CFP) of production and consumption of BMS was estimated in this study. To illustrate regional differences among the largest producers and consumers, the CFP of BMS production in New Zealand, United States (USA), Brazil and France and the CFP of BMS consumption in United Kingdom (UK), China, Brazil and Vietnam were assessed. The CFP values were then compared with the CFP of breastfeeding arising from production of the additional food needed for breastfeeding mothers to maintain energy balance (approximately 500 kcal per day). The CFP of production was estimated to be 9.2 ±â€¯1.4, 7.0 ±â€¯1.0, 11 ±â€¯2 and 8.4 ±â€¯1.3 kg CO2e per kg BMS in New Zealand, USA, Brazil and France, respectively, with the largest contribution (68-82% of the total) coming from production of raw milk. The CFP of consumption, which included BMS production, emissions from transport, production and in-home sterilisation of bottles, and preparation of BMS, was estimated to be 11 ±â€¯1, 14 ±â€¯2, 14 ±â€¯2 and 11 ±â€¯1 kg CO2e per kg BMS in UK, China, Brazil and Vietnam, respectively. Comparison of breastfeeding with feeding BMS showed a lower CFP from breastfeeding in all countries studied. However, the results were sensitive to the method used to allocate emissions from raw milk production on different dairy processing co-products (i.e. BMS, cream, cheese and lactose). Using alternative allocation methods still resulted in lower CFP from breastfeeding, but only slightly for UK, Brazil and Vietnam. Care is also needed when interpreting findings about products that are functionally different as regards child health and development.

4.
J Acquir Immune Defic Syndr ; 75 Suppl 2: S111-S114, 2017 06 01.
Article in English | MEDLINE | ID: mdl-28498179

ABSTRACT

Identifying women living with HIV, initiating them on lifelong antiretroviral treatment (ART), and retaining them in care are among the important challenges facing this generation of health care managers and public health researchers. Implementation research attempts to solve a wide range of implementation problems by trying to understand and work within real-world conditions to find solutions that have a measureable impact on the outcomes of interest. Implementation research is distinct from clinical research in many ways yet demands similar standards of conceptual thinking and discipline to generate robust evidence that can be, to some extent, generalized to inform policy and service delivery. In 2011, the World Health Organization (WHO), with funding from Global Affairs Canada, began support to 6 implementation research projects in Malawi, Nigeria, and Zimbabwe. All focused on evaluating approaches for improving rates of retention in care among pregnant women and mothers living with HIV and ensuring their continuation of ART. This reflected the priority given by ministries of health, program implementers, and researchers in each country to the importance of women living with HIV returning to health facilities for routine care, adherence to ART, and improved health outcomes. Five of the studies were cluster randomized controlled trials, and 1 adopted a matched cohort design. Here, we summarize some of the main findings and key lessons learned. We also consider some of the broader implications, remaining knowledge gaps, and how implementation research is integral to, and essential for, global guideline development and to inform HIV/AIDS strategies.


Subject(s)
Advisory Committees/organization & administration , Anti-HIV Agents/therapeutic use , HIV Infections/prevention & control , Infectious Disease Transmission, Vertical/prevention & control , Mothers , Pregnancy Complications, Infectious/prevention & control , Pregnant Women , World Health Organization , Adult , Advisory Committees/economics , CD4 Lymphocyte Count , Canada , Female , HIV Infections/drug therapy , Humans , Malawi/epidemiology , Medically Underserved Area , Nigeria/epidemiology , Patient Acceptance of Health Care , Pregnancy , Pregnancy Complications, Infectious/drug therapy , Rural Health Services/organization & administration , Rural Health Services/statistics & numerical data , Zimbabwe/epidemiology
6.
Epidemiol. serv. saúde ; 25(1): [20], jan.-mar. 2016.
Article in Portuguese | LILACS, BDS | ID: biblio-986853

ABSTRACT

Apesar de seus benefícios estabelecidos, a amamentação não é mais uma norma em muitas comunidades. Os determinantes multifatoriais da amamentação necessitam de medidas de suporte em diversos níveis, de legislações e políticas a atitudes e valores sociais, condições de trabalho e emprego para mulheres, e serviços de saúde para possibilitar que as mulheres amamentem. Quando intervenções relevantes são oferecidas adequadamente, as práticas de amamentação são responsivas e podem melhorar rapidamente. Os melhores resultados são obtidos quando intervenções são implementadas concomitantemente por diversos canais. A propaganda de substitutos ao leite materno afeta negativamente a amamentação: as vendas em todo o mundo em 2014 de 44,8 bilhões de dólares demonstram a grande ambição competitiva da indústria com a alimentação infantil. Não amamentar está associado com menor inteligência e perdas econômicas de aproximadamente 302 bilhões de dólares anualmente ou 0,49% do produto nacional bruto mundial. A amamentação fornece, em curto e longo prazos, vantagens para a saúde, econômicas e ambientais para as crianças, mulheres e para a sociedade. Para alcançar estes ganhos, suporte político e investimento financeiro são necessários para proteger, promover e dar suporte à amamentação.


Subject(s)
Humans , Infant, Newborn , Infant , Breast Feeding , Health Policy , Child Nutrition , Healthy Lifestyle
7.
Lancet ; 387(10017): 491-504, 2016 Jan 30.
Article in English | MEDLINE | ID: mdl-26869576

ABSTRACT

Despite its established benefits, breastfeeding is no longer a norm in many communities. Multifactorial determinants of breastfeeding need supportive measures at many levels, from legal and policy directives to social attitudes and values, women's work and employment conditions, and health-care services to enable women to breastfeed. When relevant interventions are delivered adequately, breastfeeding practices are responsive and can improve rapidly. The best outcomes are achieved when interventions are implemented concurrently through several channels. The marketing of breastmilk substitutes negatively affects breastfeeding: global sales in 2014 of US$44·8 billion show the industry's large, competitive claim on infant feeding. Not breastfeeding is associated with lower intelligence and economic losses of about $302 billion annually or 0·49% of world gross national income. Breastfeeding provides short-term and long-term health and economic and environmental advantages to children, women, and society. To realise these gains, political support and financial investment are needed to protect, promote, and support breastfeeding.


Subject(s)
Breast Feeding/economics , Breast Feeding/trends , Investments , Employment/economics , Female , Food Industry/economics , Gross Domestic Product , Humans , Infant , Intelligence , Marketing , Milk Substitutes/economics , Women, Working
8.
Lancet ; 387(10017): 475-90, 2016 Jan 30.
Article in English | MEDLINE | ID: mdl-26869575

ABSTRACT

The importance of breastfeeding in low-income and middle-income countries is well recognised, but less consensus exists about its importance in high-income countries. In low-income and middle-income countries, only 37% of children younger than 6 months of age are exclusively breastfed. With few exceptions, breastfeeding duration is shorter in high-income countries than in those that are resource-poor. Our meta-analyses indicate protection against child infections and malocclusion, increases in intelligence, and probable reductions in overweight and diabetes. We did not find associations with allergic disorders such as asthma or with blood pressure or cholesterol, and we noted an increase in tooth decay with longer periods of breastfeeding. For nursing women, breastfeeding gave protection against breast cancer and it improved birth spacing, and it might also protect against ovarian cancer and type 2 diabetes. The scaling up of breastfeeding to a near universal level could prevent 823,000 annual deaths in children younger than 5 years and 20,000 annual deaths from breast cancer. Recent epidemiological and biological findings from during the past decade expand on the known benefits of breastfeeding for women and children, whether they are rich or poor.


Subject(s)
Breast Feeding , Global Health , Asthma/epidemiology , Breast Neoplasms/epidemiology , Child , Child Mortality , Child, Preschool , Diabetes Mellitus, Type 2/epidemiology , Female , Humans , Hypersensitivity/epidemiology , Income , Intelligence , Malocclusion/epidemiology , Maternal Mortality , Overweight/epidemiology
9.
J Acquir Immune Defic Syndr ; 67 Suppl 2: S150-6, 2014 Nov 01.
Article in English | MEDLINE | ID: mdl-25310122

ABSTRACT

The prevent mother-to-child transmission (PMTCT) "cascade" describes the programmatic steps for pregnant and breastfeeding women that influence HIV transmission rates. To this end, HIV-infected pregnant women and mothers need access to health services and adhere to antiretroviral (ARV) prophylaxis or lifetime treatment. Within the cascade, the concept of "retention-in-care" is commonly used as a proxy for adherence to ARV interventions and, even, viral suppression. Yet surprisingly, there is no standard definition of retention-in-care either for the purposes of HIV surveillance or implementation research. Implicit to the concept of retention-in-care is the sense of continuity and receipt of care at relevant time points. In the context of PMTCT, the main challenge for surveillance and implementation research is to estimate effective coverage of ARV interventions over a prolonged period of time. These data are used to inform program management and also to estimate postnatal MTCT rates. Attendance of HIV-infected mothers at clinic at 12-month postpartum is often equated with full retention in PMTCT programs over this period. Yet, measurement approaches that fail to register missed visits, or inconsistent attendance or other missing data in the interval period, fail to capture patterns of attendance and care received by mothers and children and risk introducing systematic errors and bias. More importantly, providing only an aggregated rate of attendance as a proxy for retention-in-care fails to identify specific gaps in health services where interventions to improve retention along the PMTCT cascade are most needed. In this article, we discuss how data on retention-in-care can be understood and analyzed, and what are the implications and opportunities for programs and implementation research.


Subject(s)
Anti-HIV Agents/therapeutic use , Breast Feeding , HIV Infections/drug therapy , Outcome Assessment, Health Care , Patient Compliance , Pregnancy Complications, Infectious/drug therapy , Female , HIV Infections/complications , Humans , Pregnancy
10.
PLoS One ; 8(12): e81307, 2013.
Article in English | MEDLINE | ID: mdl-24312545

ABSTRACT

INTRODUCTION: Antiretroviral drug interventions significantly reduce the risk of HIV transmission to infants through breastfeeding. We report diarrhoea prevalence and all-cause mortality at 12 months of age according to infant feeding practices, among infants born to HIV-infected and uninfected mothers in South Africa. METHODS: A non-randomised intervention cohort study that followed both HIV-infected and HIV-uninfected mothers and their infants until 18 months of age. Mothers were supported in their infant feeding choice. Detailed morbidity and vital status data were collected over the first year. At the time, only single dose nevirapine was available to prevent mother-to-child transmission of HIV. RESULTS: Among 2,589 infants, detailed feeding data and vital status were available for 1,082 HIV-exposed infants and 1,155 HIV non-exposed infants. Among exclusively breastfed (EBF) infants there were 9.4 diarrhoeal days per 1,000 child days (95%CI. 9.12-9.82) while among infants who were never breastfed there were 15.6 diarrhoeal days per 1,000 child days (95%CI. 14.62-16.59). Exclusive breastfeeding was associated with fewer acute, persistent and total diarrhoeal events than mixed or no breastfeeding in both HIV-exposed infants and also infants of HIV uninfected mothers. In an adjusted cox regression analysis, the risk of death among all infants by 12 months of age was significantly greater in those who were never breastfed (aHR 3.5, p<0.001) or mixed fed (aHR 2.65, p<0.001) compared with those who were EBF. In separate multivariable analyses, infants who were EBF for shorter durations had an increased risk of death compared to those EBF for 5-6 months [aHR 2.18 (95% CI, 1.56-3.01); p<0.001]. DISCUSSION: In the context of antiretroviral drugs being scaled-up to eliminate new HIV infections among children, there is strong justification for financial and human resource investment to promote and support exclusive breastfeeding to improve HIV-free survival of HIV-exposed and non-exposed infants.


Subject(s)
Anti-HIV Agents/pharmacology , Breast Feeding/statistics & numerical data , Diarrhea/epidemiology , HIV Infections/transmission , Infectious Disease Transmission, Vertical/prevention & control , Mothers/statistics & numerical data , Adult , Cohort Studies , Female , Humans , Infant , Male , Rural Population/statistics & numerical data , South Africa/epidemiology , Young Adult
11.
Cochrane Database Syst Rev ; (10): CD010666, 2013 Oct 11.
Article in English | MEDLINE | ID: mdl-24114375

ABSTRACT

BACKGROUND: Micronutrient deficiencies are widespread and compound the effects of HIV disease in children, especially in poor communities. Micronutrient supplements may be effective and safe in reducing the burden of HIV disease. This review is an update of an earlier Cochrane review of micronutrient supplementation in children and adults which found that vitamin A and zinc are beneficial and safe in children exposed to HIV and living with HIV infection (Irlam 2010). OBJECTIVES: To assess whether micronutrient supplements are effective and safe in reducing mortality and morbidity in children with HIV infection. SEARCH METHODS: The CENTRAL, EMBASE, and PubMed databases were searched for randomised controlled trials of micronutrient supplements (vitamins, trace elements, and combinations of these) using the search methods of the Cochrane HIV/AIDS Group. SELECTION CRITERIA: Randomised controlled trials were selected that compared the effects of micronutrient supplements with other supplements, or placebo or no treatment on the primary outcomes of mortality, morbidity, and HIV-related hospitalisations. Indicators of HIV disease progession, anthropometric measures, and any adverse effects of supplementation were secondary outcomes. DATA COLLECTION AND ANALYSIS: Two reviewers independently screened and selected trials for inclusion, assessed the risk of bias using standardised criteria, and extracted data. Review Manager 5.1 was used to calculate the risk ratio (RR) for dichotomous data and the weighted mean difference (WMD) for continuous data, and to perform random effects meta-analysis where appropriate. MAIN RESULTS: We included three new studies in addition to the eight studies in the earlier version of the review (Irlam 2010). Eleven studies with a total of 2412 participants were therefore included: five trials of vitamin A, one trial of vitamin D, two trials of zinc, and three trials of multiple micronutrient supplements. All except one trial were conducted in African children.Vitamin A halved all-cause mortality in a meta-analysis of three trials in African children, had inconsistent impacts on diarrhoeal and respiratory morbidity, and improved short-term growth in a Tanzanian trial. No significant adverse effects were reported.A single small trial of vitamin D in North American adolescents and children demonstrated safety but no clinical benefits. Zinc supplements reduced diarrhoeal morbidity and had no adverse effects on disease progression in one small South African trial. Another trial in South African children with and without HIV infection did not show benefit from the the prophylactic use of zinc or multiple supplements versus vitamin A in the small subgroup of children with HIV infection.Multiple micronutrient supplements at twice the RDA did not alter mortality, growth, or CD4 counts at 12 months in Ugandan children aged one to five years. Short-term supplementation until hospital discharge significantly reduced the duration of all hospital admissions in poorly nourished South African children, and supplementation for six months after discharge improved appetite and nutritional indicators. AUTHORS' CONCLUSIONS: Vitamin A supplementation is beneficial and safe in children with HIV infection. Zinc is safe and appears to have similar benefits on diarrhoeal morbidity in children with HIV as in children without HIV infection. Multiple micronutrient supplements have some clinical benefit in poorly nourished children with HIV infection.Further trials of single supplements (vitamin D, zinc, and selenium) are required to build the evidence base. The long-term effects and optimal composition and dosing of multiple micronutrient supplements require further investigation in children with diverse HIV disease status.


Subject(s)
HIV Infections/complications , HIV Infections/mortality , Micronutrients/administration & dosage , Adolescent , CD4 Lymphocyte Count , Child , Child, Preschool , Diarrhea/therapy , Hospitalization/statistics & numerical data , Humans , Infant , Micronutrients/deficiency , Randomized Controlled Trials as Topic , Vitamin A/administration & dosage , Vitamin D/administration & dosage , Vitamins/administration & dosage , Zinc/administration & dosage
12.
PLoS One ; 4(10): e7397, 2009 Oct 16.
Article in English | MEDLINE | ID: mdl-19834601

ABSTRACT

BACKGROUND: Both breastfeeding pattern and duration are associated with postnatal HIV acquisition; their relative contribution has not been reliably quantified. METHODOLOGY AND PRINCIPAL FINDINGS: Pooled data from 2 cohorts: in urban West Africa where breastfeeding cessation at 4 months was recommended but exclusive breastfeeding was rare (Ditrame Plus, DP); in rural South Africa where high rates of exclusive breastfeeding were achieved, but with longer duration (Vertical Transmission Study, VTS). 18-months HIV postnatal transmission (PT) was estimated by Kaplan-Meier in infants who were HIV negative, and assumed uninfected, at age >1 month. Censoring with (to assess impact of mode of breastfeeding) and without (to assess effect of breastfeeding duration) breastfeeding cessation considered as a competing event. Of 1195 breastfed infants, not HIV-infected perinatally, 38% DP and 83% VTS children were still breastfed at age 6 months. By age 3 months, 66% of VTS children were exclusively breastfed since birth and 55% of DP infants predominantly breastfed (breastmilk+water-based drinks). 18-month PT risk (95%CI) in VTS was double that in DP: 9% (7-11) and 5% (3-8), respectively (p = 0.03). However, once duration of breastfeeding was allowed for in a competing risk analysis assuming that all children would have been breastfed for 18-month, the estimated PT risk was 16% (8-28) in DP and 14% (10-18) in VTS (p = 0.32). 18-months PT risk was 3.9% (2.3-6.5) among infants breastfed for less than 6 months, and 8.7% (6.8-11.0) among children breastfed for more than 6 months; crude hazard ratio (HR): 2.1 (1.2-3.7), p = 0.02; adjusted HR 1.8 (0.9-3.4), p = 0.06. In individual analyses of PT rates for specific breastfeeding durations, risks among children exclusively breastfed were very similar to those in children predominantly breastfed for the same period. Children exposed to solid foods during the first 2 months of life were 2.9 (1.1-8.0) times more likely to be infected postnatally than children never exposed to solids this early (adjusted competing risk analysis, p = 0.04). CONCLUSIONS: Breastfeeding duration is a major determinant of postnatal HIV transmission. The PT risk did not differ between exclusively and predominantly breastfed children; the negative effect of mixed breastfeeding with solids on PT were confirmed.


Subject(s)
Breast Feeding/adverse effects , HIV Infections/prevention & control , HIV Infections/transmission , Africa, Western , Cohort Studies , Female , HIV-1/genetics , Humans , Infant , Infant Formula , Infant Nutritional Physiological Phenomena , Infant, Newborn , Infectious Disease Transmission, Vertical , Pregnancy , Pregnancy Complications, Infectious , Risk Factors , South Africa
15.
AIDS ; 22(17): 2349-57, 2008 Nov 12.
Article in English | MEDLINE | ID: mdl-18981775

ABSTRACT

OBJECTIVES: To determine the late HIV transmission and survival risks associated with early infant feeding practices. DESIGN: A nonrandomized intervention cohort. METHODS: HIV-infected pregnant women were supported in their infant feeding choices. Infant feeding data were obtained weekly; blood samples from infants were taken monthly to diagnose HIV infection. Eighteen-month mortality and HIV transmission risk were assessed according to infant feeding practices at 6 months. RESULTS: One thousand one hundred and ninety-three live-born infants were included. Overall 18-month probabilities of death (95% confidence interval) were 0.04 (0.03-0.06) and 0.53 (0.46-0.60) for HIV-uninfected and HIV-infected children, respectively. The eighteen-month probability of survival was not statistically significantly different for HIV-uninfected infants breastfed or replacement fed from birth. In univariate analysis of infant feeding practices, the probability of HIV-free survival beyond the first 6 months of life in children alive at 6 months was 0.98 (0.89-1.00) amongst infants replacement fed from birth, 0.96 (0.90-0.98; P = 0.25) and 0.91 (0.87-0.94; P = 0.03) in those breastfed for less or more than 6 months, respectively. In multivariable analyses, maternal unemployment and low antenatal CD4 cell count were independently associated with more than three-fold increased risk of infant HIV infection or death. CONCLUSION: Breastfeeding and replacement feeding of HIV-uninfected infants were associated with similar mortality rates at 18 months. However, these findings were amongst mothers and infants who received excellent support to first make, and then practice, appropriate infant feeding choices. For programmes to achieve similar results, the quality of counselling and identification of mothers with low CD4 cell count need to be the targets of improvement strategies.


Subject(s)
AIDS Serodiagnosis/methods , Anti-HIV Agents/therapeutic use , HIV Infections/transmission , HIV-1 , Nevirapine/therapeutic use , Pregnancy Complications, Infectious/mortality , Adolescent , Adult , Breast Feeding/adverse effects , CD4 Lymphocyte Count , Choice Behavior , Developing Countries , Female , HIV Infections/drug therapy , HIV Infections/mortality , Health Knowledge, Attitudes, Practice , Health Priorities , Humans , Infant , Infant Mortality , Infant, Newborn , Male , Pregnancy , Pregnancy Complications, Infectious/drug therapy , Survival Analysis , Young Adult
16.
PLoS One ; 3(10): e3501, 2008.
Article in English | MEDLINE | ID: mdl-18946509

ABSTRACT

BACKGROUND: Rapid testing of pregnant women aims to increase uptake of HIV testing and results and thus optimize care. We report on the acceptability of HIV counselling and testing, and uptake of results, before and after the introduction of rapid testing in this area. METHODS AND PRINCIPAL FINDINGS: HIV counsellors offered counselling and testing to women attending 8 antenatal clinics, prior to enrolment into a study examining infant feeding and postnatal HIV transmission. From August 2001 to April 2003, blood was sent for HIV ELISA testing in line with the Prevention of Mother-to-Child Transmission (PMTCT) programme in the district. From May 2003 to September 2004 women were offered a rapid HIV test as part of the PMTCT programme, but also continued to have ELISA testing for study purposes. Of 12,323 women counselled, 5,879 attended clinic prior to May 2003, and 6,444 after May 2003 when rapid testing was introduced; of whom 4,324 (74.6%) and 4,810 (74.6%) agreed to have an HIV test respectively. Of the 4,810 women who had a rapid HIV test, only 166 (3.4%) requested to receive their results on the same day as testing, the remainder opted to return for results at a later appointment. Women with secondary school education were less likely to agree to testing than those with no education (AOR 0.648, p<0.001), as were women aged 21-35 (AOR 0.762, p<0.001) and >35 years (AOR 0.756, p<0.01) compared to those <20 years. CONCLUSIONS: Contrary to other reports, few women who had rapid tests accepted their HIV results the same day. Finding strategies to increase the proportion of pregnant women knowing their HIV results is critical so that appropriate care can be given.


Subject(s)
HIV Seropositivity/diagnosis , Health Knowledge, Attitudes, Practice , Hematologic Tests/methods , Rural Population , Adolescent , Adult , Cohort Studies , Counseling , Female , HIV-1/isolation & purification , Hematologic Tests/statistics & numerical data , Humans , Male , Middle Aged , Pregnancy , Sensitivity and Specificity , South Africa , Time Factors , Young Adult
18.
AIDS ; 22(7): 883-91, 2008 Apr 23.
Article in English | MEDLINE | ID: mdl-18427207

ABSTRACT

OBJECTIVES: We report on a nonrandomized intervention cohort study to increase exclusive breast-feeding rates for 6 months after delivery in HIV-positive and HIV-negative women in KwaZulu-Natal, South Africa. METHODS: Lay counselors visited women to support exclusive breast-feeding: four times antenatally, four times in the first 2 weeks postpartum and then fortnightly to 6 months. Daily feeding practices were collected at weekly intervals by separate field workers. Cumulative exclusive breast-feeding rates from birth were assessed by Kaplan-Meier analysis and association with maternal and infant variables was quantified in a Cox regression analysis. FINDINGS: One thousand, two hundred and nineteen infants of HIV-negative and 1217 infants of HIV-positive women were followed postnatally. Median duration of exclusive breast-feeding was 177 (R = 1-180; interquartile range: 150-180) and 175 days (R = 1-180; interquartile range: 137-180) in HIV-negative and HIV-positive women, respectively. Using 24-h recall, exclusive breast-feeding rates at 3 and 5 months were 83.1 and 76.5%, respectively, in HIV-negative women and 72.5 and 66.7%, respectively, in HIV-positive women. Using the most stringent cumulative data, 45% of HIV-negative and 40% of HIV-positive women adhered to exclusive breast-feeding for 6 months. Counseling visits were strongly associated with adherence to cumulative exclusive breast-feeding at 4 months, those who had received the scheduled number of visits were more than twice as likely to still be exclusively breast-feeding than those who had not (HIV-negative women: adjusted odds ratio: 2.07, 95% confidence interval: 1.56-2.74, P < 0.0001; HIV-positive women: adjusted odds ratio: 2.86, 95% CI 2.13-3.83, P < 0.0001). CONCLUSION: It is feasible to promote and sustain exclusive breast-feeding for 6 months in both HIV-positive and HIV-negative women, with home support from well trained lay counselors.


Subject(s)
Breast Feeding , Counseling/methods , Developing Countries , HIV Infections/transmission , Infectious Disease Transmission, Vertical , Adult , Case-Control Studies , Female , HIV Infections/psychology , Humans , Infant , Infant, Newborn , Logistic Models , Prevalence , South Africa
20.
Lancet ; 369(9567): 1107-16, 2007 Mar 31.
Article in English | MEDLINE | ID: mdl-17398310

ABSTRACT

BACKGROUND: Exclusive breastfeeding, though better than other forms of infant feeding and associated with improved child survival, is uncommon. We assessed the HIV-1 transmission risks and survival associated with exclusive breastfeeding and other types of infant feeding. METHODS: 2722 HIV-infected and uninfected pregnant women attending antenatal clinics in KwaZulu Natal, South Africa (seven rural, one semiurban, and one urban), were enrolled into a non-randomised intervention cohort study. Infant feeding data were obtained every week from mothers, and blood samples from infants were taken monthly at clinics to establish HIV infection status. Kaplan-Meier analyses conditional on exclusive breastfeeding were used to estimate transmission risks at 6 weeks and 22 weeks of age, and Cox's proportional hazard was used to quantify associations with maternal and infant factors. FINDINGS: 1132 of 1372 (83%) infants born to HIV-infected mothers initiated exclusive breastfeeding from birth. Of 1276 infants with complete feeding data, median duration of cumulative exclusive breastfeeding was 159 days (first quartile [Q1] to third quartile [Q3], 122-174 days). 14.1% (95% CI 12.0-16.4) of exclusively breastfed infants were infected with HIV-1 by age 6 weeks and 19.5% (17.0-22.4) by 6 months; risk was significantly associated with maternal CD4-cell counts below 200 cells per muL (adjusted hazard ratio [HR] 3.79; 2.35-6.12) and birthweight less than 2500 g (1.81, 1.07-3.06). Kaplan-Meier estimated risk of acquisition of infection at 6 months of age was 4.04% (2.29-5.76). Breastfed infants who also received solids were significantly more likely to acquire infection than were exclusively breastfed children (HR 10.87, 1.51-78.00, p=0.018), as were infants who at 12 weeks received both breastmilk and formula milk (1.82, 0.98-3.36, p=0.057). Cumulative 3-month mortality in exclusively breastfed infants was 6.1% (4.74-7.92) versus 15.1% (7.63-28.73) in infants given replacement feeds (HR 2.06, 1.00-4.27, p=0.051). INTERPRETATION: The association between mixed breastfeeding and increased HIV transmission risk, together with evidence that exclusive breastfeeding can be successfully supported in HIV-infected women, warrant revision of the present UNICEF, WHO, and UNAIDS infant feeding guidelines.


Subject(s)
Breast Feeding , HIV Infections/transmission , HIV-1 , Infant Food/adverse effects , Infectious Disease Transmission, Vertical/statistics & numerical data , Adolescent , Adult , Cohort Studies , Female , HIV Infections/mortality , Humans , Infant , Infant, Newborn , Pregnancy , Proportional Hazards Models , South Africa
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