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Houle B, Kabudula C, Mojola SA, Angotti N, Gómez-Olivé FX, Gareta D, Herbst K, Clark SJ, Menken J, Canudas-Romo V. Mortality variability and differentials by age and causes of death in rural South Africa, 1994-2018. BMJ Glob Health 2024; 9:e013539. [PMID: 38589045 PMCID: PMC11015189 DOI: 10.1136/bmjgh-2023-013539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 12/20/2023] [Indexed: 04/10/2024] Open
Abstract
INTRODUCTION Understanding mortality variability by age and cause is critical to identifying intervention and prevention actions to support disadvantaged populations. We assessed mortality changes in two rural South African populations over 25 years covering pre-AIDS and peak AIDS epidemic and subsequent antiretroviral therapy (ART) availability. METHODS Using population surveillance data from the Agincourt Health and Socio-Demographic Surveillance System (AHDSS; 1994-2018) and Africa Health Research Institute (AHRI; 2000-2018) for 5-year periods, we calculated life expectancy from birth to age 85, mortality age distributions and variation, and life-years lost (LYL) decomposed into four cause-of-death groups. RESULTS The AIDS epidemic shifted the age-at-death distribution to younger ages and increased LYL. For AHDSS, between 1994-1998 and 1999-2003 LYL increased for females from 13.6 years (95% CI 12.7 to 14.4) to 22.1 (95% CI 21.2 to 23.0) and for males from 19.9 (95% CI 18.8 to 20.8) to 27.1 (95% CI 26.2 to 28.0). AHRI LYL in 2000-2003 was extremely high (females=40.7 years (95% CI 39.8 to 41.5), males=44.8 years (95% CI 44.1 to 45.5)). Subsequent widespread ART availability reduced LYL (2014-2018) for women (AHDSS=15.7 (95% CI 15.0 to 16.3); AHRI=22.4 (95% CI 21.7 to 23.1)) and men (AHDSS=21.2 (95% CI 20.5 to 22.0); AHRI=27.4 (95% CI 26.7 to 28.2)), primarily due to reduced HIV/AIDS/TB deaths in mid-life and other communicable disease deaths in children. External causes increased as a proportion of LYL for men (2014-2018: AHRI=25%, AHDSS=17%). The share of AHDSS LYL 2014-2018 due to non-communicable diseases exceeded pre-HIV levels: females=43%; males=40%. CONCLUSIONS Our findings highlight shifting burdens in cause-specific LYL and persistent mortality differentials in two populations experiencing complex epidemiological transitions. Results show high contributions of child deaths to LYL at the height of the AIDS epidemic. Reductions in LYL were primarily driven by lowered HIV/AIDS/TB and other communicable disease mortality during the ART periods. LYL differentials persist despite widespread ART availability, highlighting the contributions of other communicable diseases in children, HIV/AIDS/TB and external causes in mid-life and non-communicable diseases in older ages.
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Affiliation(s)
- Brian Houle
- School of Demography, The Australian National University, Acton, Australian Capital Territory, Australia
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), Faculty of Health Sciences, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
- Institute of Behavioral Science, University of Colorado Boulder, Boulder, Colorado, USA
| | - Chodziwadziwa Kabudula
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), Faculty of Health Sciences, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
| | - Sanyu A Mojola
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), Faculty of Health Sciences, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
- Department of Sociology, School of Public and International Affairs, and Office of Population Research, Princeton University, Princeton, New Jersey, USA
| | - Nicole Angotti
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), Faculty of Health Sciences, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
- Institute of Behavioral Science, University of Colorado Boulder, Boulder, Colorado, USA
- Department of Sociology, American University, Washington, DC, USA
| | - Francesc Xavier Gómez-Olivé
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), Faculty of Health Sciences, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
| | - Dickman Gareta
- Africa Health Research Institute, Durban, KwaZulu-Natal, South Africa
| | - Kobus Herbst
- Africa Health Research Institute, Durban, KwaZulu-Natal, South Africa
- DSI-MRC South African Population Research Infrastructure Network, Durban, South Africa
| | - Samuel J Clark
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), Faculty of Health Sciences, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
- Department of Sociology, The Ohio State University, Columbus, Ohio, USA
| | - Jane Menken
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), Faculty of Health Sciences, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
- Institute of Behavioral Science, University of Colorado Boulder, Boulder, Colorado, USA
| | - Vladimir Canudas-Romo
- School of Demography, The Australian National University, Acton, Australian Capital Territory, Australia
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Houle B, Kabudula C, Gareta D, Herbst K, Clark SJ. Household structure, composition and child mortality in the unfolding antiretroviral therapy era in rural South Africa: comparative evidence from population surveillance, 2000-2015. BMJ Open 2023; 13:e070388. [PMID: 36921956 PMCID: PMC10030929 DOI: 10.1136/bmjopen-2022-070388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/17/2023] Open
Abstract
OBJECTIVES The structure and composition of the household has important influences on child mortality. However, little is known about these factors in HIV-endemic areas and how associations may change with the introduction and widespread availability of antiretroviral treatment (ART). We use comparative, longitudinal data from two demographic surveillance sites in rural South Africa (2000-2015) on mortality of children younger than 5 years (n=101 105). DESIGN We use multilevel discrete time event history analysis to estimate children's probability of dying by their matrilineal residential arrangements. We also test if associations have changed over time with ART availability. SETTING Rural South Africa. PARTICIPANTS Children younger than 5 years (n=101 105). RESULTS 3603 children died between 2000 and 2015. Mortality risks differed by co-residence patterns along with different types of kin present in the household. Children in nuclear households with both parents had the lowest risk of dying compared with all other household types. Associations with kin and child mortality were moderated by parental status. Having older siblings lowered the probability of dying only for children in a household with both parents (relative risk ratio (RRR)=0.736, 95% CI (0.633 to 0.855)). Only in the later ART period was there evidence that older adult kin lowered the probability of dying for children in single parent households (RRR=0.753, 95% CI (0.664 to 0.853)). CONCLUSIONS Our findings provide comparative evidence of how differential household profiles may place children at higher mortality risk. Formative research is needed to understand the role of other household kin in promoting child well-being, particularly in one-parent households that are increasingly prevalent.
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Affiliation(s)
- Brian Houle
- School of Demography, The Australian National University, Canberra, Australian Capital Territory, Australia
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Acornhoek, South Africa
| | - Chodziwadziwa Kabudula
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Acornhoek, South Africa
| | - Dickman Gareta
- Africa Health Research Institute, Somkhele, South Africa
| | - Kobus Herbst
- Africa Health Research Institute, Somkhele, South Africa
- DSI-MRC South African Population Research Infrastructure Network (SAPRIN), Durban, South Africa
| | - Samuel J Clark
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Acornhoek, South Africa
- Department of Sociology, The Ohio State University, Columbus, Ohio, USA
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Floridia M, Orlando S, Andreotti M, Mphwere R, Kavalo T, Ciccacci F, Scarcella P, Marazzi MC, Giuliano M. A 12-month Prospective Study of HIV-infected and HIV-uninfected Women and Their Infants in Malawi: Comparative Analysis of Clinical Events and Infant Growth. Am J Trop Med Hyg 2023; 108:394-402. [PMID: 36535249 PMCID: PMC9896343 DOI: 10.4269/ajtmh.22-0482] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 09/16/2022] [Indexed: 12/23/2022] Open
Abstract
Few studies have compared clinical outcomes in HIV-exposed uninfected (HEU) and HIV-unexposed uninfected (HUU) infants in the current scenario of universal and lifelong maternal antiretroviral therapy (ART). HIV-uninfected and HIV-infected Malawian women receiving ART and their breastfed infants were followed for 12 months postpartum, analyzing the rates of infectious and noninfectious events and assessing infant growth at 6 weeks, 6 months, and 12 months. The cohorts included 227 mothers (70 HIV-negative, 157 HIV-positive) and 235 infants (72 HUU, 163 HEU). No maternal or infant deaths occurred during follow-up. HIV-negative women were less likely to complete follow-up (48.6% versus 91.1%). Mothers with and without HIV had similar rates of both infectious and noninfectious events per person-month. Infants who were HEU, compared with HUU, had higher rates of events of any type, lower respiratory tract infections (LRTI), and noninfectious events. HEU had lower body mass index (BMI) at 6 weeks but did not differ from HUU in all anthropometric measures at 6 and 12 months; in growth between 6 weeks and 12 months; and in occurrence of stunting, underweight, and wasting at 6 weeks, 6 months, and 12 months. During the first year of life, infants who were HEU, compared with HUU, showed a transiently lower BMI and an increased risk of LRTI.
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Affiliation(s)
- Marco Floridia
- Istituto Superiore di Sanità, National Center for Global Health, Rome, Italy
| | - Stefano Orlando
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | - Mauro Andreotti
- Istituto Superiore di Sanità, National Center for Global Health, Rome, Italy
| | | | - Thom Kavalo
- DREAM Program, Community of S. Egidio, Blantyre, Malawi
| | - Fausto Ciccacci
- Saint Camillus International University of Health Sciences, Rome, Italy
| | - Paola Scarcella
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | | | - Marina Giuliano
- Istituto Superiore di Sanità, National Center for Global Health, Rome, Italy
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Kim S, Rhee C, Kang SJ, Tak S. A scoping review on data integration in the field of infectious diseases, 2009-2018. INTERNATIONAL JOURNAL OF ONE HEALTH 2021. [DOI: 10.14202/ijoh.2021.151-157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background and Aim: Little is known about data integration in public health research and its impact. This study aimed to summarize known collaboration information, the characteristics of the datasets used, the methods of data integration, and knowledge gaps.
Materials and Methods: We reviewed papers on infectious diseases from two or more datasets published during 2009- 2018, before the coronavirus disease pandemic. Two independent researchers searched the Medline and Global Health databases using predetermined criteria.
Results: Of the 2375 items retrieved, 2272 titles and abstracts were reviewed. Of these, 164 were secondary reviews. Full-text reviews identified 153 relevant articles; we excluded 11 papers that did not meet our inclusion criteria. Of the 153 papers, 150 were single-country studies. Most papers were from North America (n=47). Viral diseases were the most commonly researched diseases (n=66), and many studies sought to define infection rates (n=62). Data integration usually employed unique national identifiers (n=37) or address-based identifiers (n=30). Two data sources were combined (n=121), and at least one data source typically included routine surveillance information.
Conclusion: We found a growing usage of data integration in infectious diseases, emphasizing the advantages of data integration and linkage analysis, and reiterating its importance in public health emergency preparedness and response.
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Affiliation(s)
- Seulgi Kim
- Graduate School of Public Health, Seoul National University, Seoul, South Korea
| | - Chulwoo Rhee
- Department of Preventive Medicine, College of Medicine, Seoul National University, Seoul, South Korea
| | - Su Jin Kang
- Institute of Health and Environment, Seoul National University, Seoul, South Korea
| | - Sangwoo Tak
- Institute of Health and Environment, Seoul National University, Seoul, South Korea
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Remera E, Chammartin F, Nsanzimana S, Forrest JI, Smith GE, Mugwaneza P, Malamba SS, Semakula M, Condo JU, Ford N, Riedel DJ, Nisingizwe MP, Binagwaho A, Mills EJ, Bucher H. Child mortality associated with maternal HIV status: a retrospective analysis in Rwanda, 2005-2015. BMJ Glob Health 2021; 6:e004398. [PMID: 33975886 PMCID: PMC8118007 DOI: 10.1136/bmjgh-2020-004398] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 01/22/2021] [Accepted: 01/26/2021] [Indexed: 11/14/2022] Open
Abstract
INTRODUCTION Child mortality remains highest in regions of the world most affected by HIV/AIDS. The aim of this study was to assess child mortality rates in relation to maternal HIV status from 2005 to 2015, the period of rapid HIV treatment scale-up in Rwanda. METHODS We used data from the 2005, 2010 and 2015 Rwanda Demographic Health Surveys to derive under-2 mortality rates by survey year and mother's HIV status and to build a multivariable logistic regression model to establish the association of independent predictors of under-2 mortality stratified by mother's HIV status. RESULTS In total, 12 010 live births were reported by mothers in the study period. Our findings show a higher mortality among children born to mothers with HIV compared with HIV negative mothers in 2005 (216.9 vs 100.7 per 1000 live births) and a significant reduction in mortality for both groups in 2015 (72.0 and 42.4 per 1000 live births, respectively). In the pooled reduced multivariable model, the odds of child mortality was higher among children born to mothers with HIV, (adjusted OR, AOR 2.09; 95% CI 1.57 to 2.78). The odds of child mortality were reduced in 2010 (AOR 0.69; 95% CI 0.59 to 0.81) and 2015 (AOR 0.35; 95% CI 0.28 to 0.44) compared with 2005. Other independent predictors of under-2 mortality included living in smaller families of 1-2 members (AOR 5.25; 95% CI 3.59 to 7.68), being twin (AOR 4.93; 95% CI 3.51 to 6.92) and being offspring from mothers not using contraceptives at the time of the survey (AOR 1.6; 95% CI 1.38 to 1.99). Higher education of mothers (completed primary school: (AOR 0.74; 95% CI 0.64 to 0.87) and secondary or higher education: (AOR 0.53; 95% CI 0.38 to 0.74)) was also associated with reduced child mortality. CONCLUSIONS This study shows an important decline in under-2 child mortality among children born to both mothers with and without HIV in Rwanda over a 10-year span.
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Affiliation(s)
- Eric Remera
- Institute of HIV, Disease Prevention and Control, Rwanda Biomedical Center, Gasabo, City of Kigali, Rwanda
- Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, Basel, Switzerland
- Basel Institute for Clinical Epidemiology and Biostatistics Department of Clinical Research, University Hospital Basel, Basel, Switzerland
- University of Global Health Equity, Kigali, Rwanda
| | - Frédérique Chammartin
- University of Basel, Basel, Switzerland
- Basel Institute for Clinical Epidemiology and Biostatistics Department of Clinical Research, University Hospital Basel, Basel, Switzerland
| | - Sabin Nsanzimana
- Institute of HIV, Disease Prevention and Control, Rwanda Biomedical Center, Gasabo, City of Kigali, Rwanda
- University of Global Health Equity, Kigali, Rwanda
| | - Jamie Ian Forrest
- The University of British Columbia School of Population and Public Health, Vancouver, British Columbia, Canada
| | | | - Placidie Mugwaneza
- Institute of HIV, Disease Prevention and Control, Rwanda Biomedical Center, Gasabo, City of Kigali, Rwanda
| | | | - Muhammed Semakula
- Institute of HIV, Disease Prevention and Control, Rwanda Biomedical Center, Gasabo, City of Kigali, Rwanda
- Center for Excellence in Data Science, University of Rwanda - Kigali Campus, Kigali, Rwanda
- Centre for Statistics, Hasselt University Faculty of Business Economics, Hasselt, Limburg, Belgium
| | - Jeanine U Condo
- National University of Rwanda School of Public Health, Kigali, Rwanda
- Tulane University, New Orleans, Louisiana, USA
| | - Nathan Ford
- Centre for Infectious Disease Epidemiology and Research, School of Public Health and Family Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - David J Riedel
- University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Marie Paul Nisingizwe
- The University of British Columbia School of Population and Public Health, Vancouver, British Columbia, Canada
| | | | - Edward J Mills
- Cytel, Vancouver, British Columbia, Canada
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
| | - Heiner Bucher
- University of Basel, Basel, Switzerland
- Basel Institute for Clinical Epidemiology and Biostatistics Department of Clinical Research, University Hospital Basel, Basel, Switzerland
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Houle B, Kabudula CW, Stein A, Gareta D, Herbst K, Clark SJ. Linking the timing of a mother's and child's death: Comparative evidence from two rural South African population-based surveillance studies, 2000-2015. PLoS One 2021; 16:e0246671. [PMID: 33556118 PMCID: PMC7869981 DOI: 10.1371/journal.pone.0246671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 01/24/2021] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND The effect of the period before a mother's death on child survival has been assessed in only a few studies. We conducted a comparative investigation of the effect of the timing of a mother's death on child survival up to age five years in rural South Africa. METHODS We used discrete time survival analysis on data from two HIV-endemic population surveillance sites (2000-2015) to estimate a child's risk of dying before and after their mother's death. We tested if this relationship varied between sites and by availability of antiretroviral therapy (ART). We assessed if related adults in the household altered the effect of a mother's death on child survival. FINDINGS 3,618 children died from 2000-2015. The probability of a child dying began to increase in the 7-11 months prior to the mother's death and increased markedly in the 3 months before (2000-2003 relative risk = 22.2, 95% CI = 14.2-34.6) and 3 months following her death (2000-2003 RR = 20.1; CI = 10.3-39.4). This increased risk pattern was evident at both sites. The pattern attenuated with ART availability but remained even with availability at both sites. The father and maternal grandmother in the household lowered children's mortality risk independent of the association between timing of mother and child mortality. CONCLUSIONS The persistence of elevated mortality risk both before and after the mother's death for children of different ages suggests that absence of maternal care and abrupt breastfeeding cessation might be crucial risk factors. Formative research is needed to understand the circumstances for children when a mother is very ill or dies, and behavioral and other risk factors that increase both the mother and child's risk of dying. Identifying families when a mother is very ill and implementing training and support strategies for other members of the household are urgently needed to reduce preventable child mortality.
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Affiliation(s)
- Brian Houle
- School of Demography, The Australian National University, Canberra, Australia
- Faculty of Health Sciences, MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
- CU Population Center, Institute of Behavioral Science, University of Colorado at Boulder, Boulder, Colorado, United States of America
| | - Chodziwadziwa W. Kabudula
- Faculty of Health Sciences, MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
| | - Alan Stein
- Faculty of Health Sciences, MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
- Section of Child and Adolescent Psychiatry, Department of Psychiatry, University of Oxford, Oxford, United Kingdom
| | - Dickman Gareta
- Africa Health Research Institute, KwaZulu-Natal, South Africa
| | - Kobus Herbst
- Africa Health Research Institute, KwaZulu-Natal, South Africa
| | - Samuel J. Clark
- Faculty of Health Sciences, MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
- CU Population Center, Institute of Behavioral Science, University of Colorado at Boulder, Boulder, Colorado, United States of America
- Department of Sociology, The Ohio State University, Columbus, Ohio, United States of America
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Baroncelli S, Galluzzo CM, Liotta G, Andreotti M, Mancinelli S, Mphwere R, Bokola E, Amici R, Marazzi MC, Palombi L, Palmisano L, Giuliano M. Immune Activation and Microbial Translocation Markers in HIV-Exposed Uninfected Malawian Infants in the First Year of Life. J Trop Pediatr 2019; 65:617-625. [PMID: 31006009 DOI: 10.1093/tropej/fmz022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND HIV-exposed uninfected (HEU) infants show a high rate of morbidity. We aimed to investigate on biomarkers of immune activation/microbial translocation in HEU infants, evaluating the impact that infections/malnutrition can have on biomarker levels during the first year of life. METHODS Clinical data of 72 Malawian infants were recorded monthly and correlated with levels of soluble CD14 (sCD14), lipopolysaccharide-binding protein (LBP) and intestinal fatty acid-binding protein (I-FABP), analyzed longitudinally. RESULTS Levels of sCD14 and LBP showed a significant age-related increase. Higher levels of LBP (19.4 vs. 15.2 μg/ml) were associated with stunting, affecting 30% of the infants. The association remained statistically significant after adjusting for cytomegalovirus acquisition, malaria and respiratory infections (p = 0.031). I-FABP levels were significantly increased in infants experiencing gastrointestinal infections (1442.8 vs. 860.0 pg/ml, p = 0.018). CONCLUSION We provide evidence that stunting is associated with an enhanced inflammatory response to microbial products in HEU children, suggesting that malnutrition status should be taken into consideration to better understand the alteration of the immune profile of HEU infants living in poor socioeconomic settings.
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Affiliation(s)
- Silvia Baroncelli
- National Center for Global Health, Istituto Superiore di Sanità, Rome, Italy
| | | | - Giuseppe Liotta
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | - Mauro Andreotti
- National Center for Global Health, Istituto Superiore di Sanità, Rome, Italy
| | - Sandro Mancinelli
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | | | - Enok Bokola
- DREAM Program, Community of S. Egidio, Blantyre, Malawi
| | - Roberta Amici
- National Center for Global Health, Istituto Superiore di Sanità, Rome, Italy
| | | | - Leonardo Palombi
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | - Lucia Palmisano
- National Center for Drug Research and Evaluation, Istituto Superiore di Sanità, Rome, Italy
| | - Marina Giuliano
- National Center for Global Health, Istituto Superiore di Sanità, Rome, Italy
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Ndarukwa V, Zunza M. Combination antiretroviral treatment use in prevention of mother-to-child transmission programmes: 6-week HIV prevalence and relationship to time of antiretroviral treatment initiation and mixed feeding. S Afr J Infect Dis 2019; 34:117. [PMID: 34485455 PMCID: PMC8378092 DOI: 10.4102/sajid.v34i1.117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 10/04/2019] [Indexed: 11/01/2022] Open
Abstract
Background In Zimbabwe, 16% of pregnant women aged 15-49 years are infected with HIV. More than 90% of HIV infection in children is through mother-to-child transmission (MTCT). We investigated the effectiveness of the Option B+ in reducing HIV infection and factors associated with HIV transmission among infants born to mothers enrolled in the prevention of mother-to-child transmission (PMTCT) programme. Methods We randomly selected 1204 early infant HIV diagnosis test results for HIV-exposed infants and linked these results to maternal clinical records at primary healthcare clinics in Harare to estimate the prevalence of MTCT and to determine the clinical factors associated with MTCT of HIV at 6 weeks. Results Of the 1204 infants in the study, 2.5% (95% confidence interval [CI], 1.7-3.5) were infected with HIV at 6 weeks post-delivery. Antiretroviral adherence reduced the odds of HIV infection by about 99% (odds ratio [OR] 0.01 [95% CI, 0.00-0.06]). Both mixed feeding (OR 3.89 [95% CI, 0.92-16.50]) and late initiation of antiretroviral treatment (ART) (after delivery) (OR 3.18 [95% CI, 0.42-23.94]) increased the odds of HIV infection. Conclusion Early initiation of combination ART reduces 6-week MTCT of HIV in PMTCT programmes to levels similar to those found in controlled trial settings. Exclusive breastfeeding remains important even in the presence of ART.
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Affiliation(s)
- Victoria Ndarukwa
- Division of Epidemiology and Biostatistics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Moleen Zunza
- Division of Epidemiology and Biostatistics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
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Rutagwera DG, Molès JP, Kankasa C, Mwiya M, Tuaillon E, Peries M, Nagot N, Van de Perre P, Tylleskär T. Prevalence and determinants of HIV shedding in breast milk during continued breastfeeding among Zambian mothers not on antiretroviral treatment (ART): A cross-sectional study. Medicine (Baltimore) 2019; 98:e17383. [PMID: 31689745 PMCID: PMC6946397 DOI: 10.1097/md.0000000000017383] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The risk of postnatal HIV transmission exists throughout the breastfeeding period. HIV shedding in breast milk beyond six months has not been studied extensively. The aim of this study was to determine prevalence and determinants of HIV shedding in breast milk during continued breastfeedingA cross-sectional study was nested in the PROMISE-PEP trial in Lusaka, Zambia to analyze breast milk samples collected from both breasts at week 38 post-partum (mid-way during continued breastfeeding). We measured concurrent HIV deoxyribonucleic acid (DNA) and HIV ribonucleic acid (RNA) as proxies for cell-associated HIV (CAV) and cell-free HIV (CFV) shedding in breast milk respectively. Participants' socio-demographic date, concurrent blood test results, sub clinical mastitis test results and contraceptive use data were available. Logistic regression models were used to identify determinants of HIV shedding in breast milk (detecting either CAV or CFV).The prevalence of HIV shedding in breast milk at 9 months post-partum was 79.4% (95%CI: 74.0 - 84.0). CAV only, CFV only and both CAV and CFV were detectable in 13.7%, 17.3% and 48.4% mothers, respectively. The odds of shedding HIV in breast milk decreased significantly with current use of combined oral contraceptives (AOR: 0.37; 95%CI: 0.17 - 0.83) and increased significantly with low CD4 count (AOR: 3.47; 95%CI: 1.23 - 9.80), unsuppressed plasma viral load (AOR: 6.27; 95%CI: 2.47 - 15.96) and severe sub-clinical mastitis (AOR: 12.56; 95%CI: 2.48 - 63.58).This study estimated that about 80% of HIV infected mothers not on ART shed HIV in breast milk during continued breastfeeding. Major factors driving this shedding were low CD4 count, unsuppressed plasma viral load and severe sub-clinical mastitis. The inverse relationship between breast milk HIV and use of combined oral contraceptives needs further clarification. Continued shedding of CAV may contribute to residual postnatal transmission of HIV in mothers on successful ART.
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Affiliation(s)
- David Gatsinzi Rutagwera
- Centre for International Health, University of Bergen, Bergen, Norway
- Department of Pediatrics and Child Health, University Teaching Hospitals, School of Medicine University of Zambia, Lusaka, Zambia
| | - Jean-Pierre Molès
- Pathogenesis and Control of Chronic Infections, INSERM, Université de Montpellier, Etablissement français du Sang
| | - Chipepo Kankasa
- Department of Pediatrics and Child Health, University Teaching Hospitals, School of Medicine University of Zambia, Lusaka, Zambia
| | - Mwiya Mwiya
- Department of Pediatrics and Child Health, University Teaching Hospitals, School of Medicine University of Zambia, Lusaka, Zambia
| | - Edouard Tuaillon
- Pathogenesis and Control of Chronic Infections, INSERM, Université de Montpellier, Etablissement français du Sang
- University Hospital of Montpellier, Montpellier, France
| | - Marianne Peries
- Pathogenesis and Control of Chronic Infections, INSERM, Université de Montpellier, Etablissement français du Sang
| | - Nicolas Nagot
- Pathogenesis and Control of Chronic Infections, INSERM, Université de Montpellier, Etablissement français du Sang
- University Hospital of Montpellier, Montpellier, France
| | - Philippe Van de Perre
- Pathogenesis and Control of Chronic Infections, INSERM, Université de Montpellier, Etablissement français du Sang
- University Hospital of Montpellier, Montpellier, France
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10
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Rochat TJ, Houle B, Stein A, Pearson RM, Newell ML, Bland RM. Cohort Profile: The Siyakhula Cohort, rural South Africa. Int J Epidemiol 2018; 46:1755-1756n. [PMID: 29025088 PMCID: PMC5837732 DOI: 10.1093/ije/dyx148] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/13/2017] [Indexed: 11/13/2022] Open
Affiliation(s)
- T J Rochat
- Africa Health Research Institute, Durban, KwaZulu-Natal, South Africa.,Human and Social Development Research Programme, Human Sciences Research Council, Durban, South Africa.,MRC Developmental Pathways to Health Research Unit, Department of Paediatrics, School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.,Department of Psychiatry, University of Oxford, Oxford, UK
| | - B Houle
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.,School of Demography, Australian National University, Canberra, Australia.,Institute of Behavioural Science, University of Colorado at Boulder, Boulder, CO, USA
| | - A Stein
- Department of Psychiatry, University of Oxford, Oxford, UK.,MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - R M Pearson
- Department of Psychiatry, University of Oxford, Oxford, UK.,Centre for Academic Mental Health, University of Bristol, Bristol, UK
| | - M L Newell
- School of Public Health, University of the Witwatersrand, Johannesburg, South Africa.,Global Health Research Institute, Human Development and Health, University of Southampton, UK
| | - R M Bland
- Africa Health Research Institute, Durban, KwaZulu-Natal, South Africa.,School of Public Health, University of the Witwatersrand, Johannesburg, South Africa.,Institute of Health and Wellbeing and Royal Hospital for Children, University of Glasgow, Glasgow, UK
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11
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Tlou B, Sartorius B, Tanser F. Effect of timing of mother's death on child survival in a rural HIV hyper-endemic South African population. BMC Public Health 2018; 18:1237. [PMID: 30400789 PMCID: PMC6220497 DOI: 10.1186/s12889-018-6152-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 10/26/2018] [Indexed: 11/24/2022] Open
Abstract
Background Maternal mortality remains a tragedy and a key determinant for child survival. There is increasing evidence that the hazard ratio of demising for young children escalates after the death of their mothers, but few studies has been done in rural areas were HIV/AIDS is more prevalent. The aim of this study is to investigate the survival of children who lost their mothers soon or after their births in a rural setup with high HIV prevalence in South Africa. Methods This study used a data set from Africa Health Research Institute in rural South Africa.The study population comprised children (0–10 years of age) from 2000 to 2014. We employed a Cox regression modelling approach to estimate greatest temporal hazard of the child after the death of their mothers, accounting for the confounding influence of wealth index of the household and HIV status of the mother. Results We found 62,600 live births, and that 2191 children died when they were less than or equal to 10 years old. The mortality rates for < 5 and 5–9 years is 882.25 and 117.75 per 1000 live births respectively, with a maternal mortality rate of 447.3 deaths per 100,000 live births from 2000 to 2004. Child mortality risk was very high in less than 6 weeks after their mother’s death (HR 3.45 [95%CI: 1.3–6.54]), and decreased drastically after 3 years following her death (HR 0.8 [0.2–6.3]). This increased risk was more pronounced among children aged less than 1 month and living in poor households. Conclusions Children (less than 10 years) in rural households are at their highest risk of dying within 6 weeks of mother’s death and this risk decreases substantially after the highly vulnerable window. This indicates that the period of mother’s death does play a critical role on the survival of her children.Thus, understanding this risk and its timing in relation to a mother’s death is critical to guide interventions and stress the relevance of assessing the interaction between clinical care and socio-economic programs in addressing the needs of orphans.
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Affiliation(s)
- Boikhutso Tlou
- Discipline of Public Health Medicine, School of Nursing and Public Health, University of KwaZulu-Natal, Durban, South Africa.
| | - Benn Sartorius
- Discipline of Public Health Medicine, School of Nursing and Public Health, University of KwaZulu-Natal, Durban, South Africa
| | - Frank Tanser
- Discipline of Public Health Medicine, School of Nursing and Public Health, University of KwaZulu-Natal, Durban, South Africa.,Africa Centre for Health and Population Studies, University of KwaZulu-Natal, Mtubatuba, South Africa.,Centre for the AIDS Programme of Research in South Africa -CAPRISA, University of KwaZulu-Natal, Durban, South Africa.,Research Department of Infection & Population Health, University College London, London, UK
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12
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Arikawa S, Rollins N, Jourdain G, Humphrey J, Kourtis AP, Hoffman I, Essex M, Farley T, Coovadia HM, Gray G, Kuhn L, Shapiro R, Leroy V, Bollinger RC, Onyango-Makumbi C, Lockman S, Marquez C, Doherty T, Dabis F, Mandelbrot L, Le Coeur S, Rolland M, Joly P, Newell ML, Becquet R. Contribution of Maternal Antiretroviral Therapy and Breastfeeding to 24-Month Survival in Human Immunodeficiency Virus-Exposed Uninfected Children: An Individual Pooled Analysis of African and Asian Studies. Clin Infect Dis 2018; 66:1668-1677. [PMID: 29272387 PMCID: PMC5961296 DOI: 10.1093/cid/cix1102] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 12/19/2017] [Indexed: 11/14/2022] Open
Abstract
Background Human immunodeficiency virus (HIV)-infected pregnant women increasingly receive antiretroviral therapy (ART) to prevent mother-to-child transmission (PMTCT). Studies suggest HIV-exposed uninfected (HEU) children face higher mortality than HIV-unexposed children, but most evidence relates to the pre-ART era, breastfeeding of limited duration, and considerable maternal mortality. Maternal ART and prolonged breastfeeding while on ART may improve survival, although this has not been reliably quantified. Methods Individual data on 19 219 HEU children from 21 PMTCT trials/cohorts undertaken from 1995 to 2015 in Africa and Asia were pooled to estimate the association between 24-month mortality and maternal/infant factors, using random-effects Cox proportional hazards models. Adjusted attributable fractions of risks computed using the predict function in the R package "frailtypack" were used to estimate the relative contribution of risk factors to overall mortality. Results Cumulative incidence of death was 5.5% (95% confidence interval, 5.1-5.9) by age 24 months. Low birth weight (LBW <2500 g, adjusted hazard ratio (aHR, 2.9), no breastfeeding (aHR, 2.5), and maternal death (aHR, 11.1) were significantly associated with increased mortality. Maternal ART (aHR, 0.5) was significantly associated with lower mortality. At the population level, LBW accounted for 16.2% of 24-month mortality, never breastfeeding for 10.8%, mother not receiving ART for 45.6%, and maternal death for 4.3%; combined, these factors explained 63.6% of deaths by age 24 months. Conclusions Survival of HEU children could be substantially improved if public health practices provided all HIV-infected mothers with ART and supported optimal infant feeding and care for LBW neonates.
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Affiliation(s)
- Shino Arikawa
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, Team IDLIC, France
| | - Nigel Rollins
- Department of Maternal, Newborn, Child and Adolescent Health, World Health Organization, Geneva, Switzerland
| | - Gonzague Jourdain
- Institut de recherche pour le développement UMI 174-PHPT, Marseille, France
- Faculty of Associated Medical Sciences, Chiang Mai University, Thailand
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Jean Humphrey
- Department of International Health, Center for Global Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland
| | - Athena P Kourtis
- Women’s Health and Fertility Branch, Division of Reproductive Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention
- Emory University School of Medicine and Eastern Virginia Medical School, Atlanta, Georgia
| | - Irving Hoffman
- Division of Infectious Diseases, Department of Medicine, University of North Carolina School of Medicine, Chapel Hill
| | - Max Essex
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | | | - Hoosen M Coovadia
- Maternal Adolescent and Child Health, University of the Witwatersrand, Johannesburg
| | - Glenda Gray
- South African Medical Research Council, Cape Town
- Perinatal HIV Research Unit, University of the Witwatersrand, Johannesburg, South Africa
| | - Louise Kuhn
- Gertrude H. Sergievsky Center, College of Physicians and Surgeons, and Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York
| | - Roger Shapiro
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Valériane Leroy
- Inserm, Centre de recherche Inserm U1027, Université Paul Sabatier Toulouse 3, France
| | - Robert C Bollinger
- Center for Clinical Global Health Education, Johns Hopkins University, Baltimore, Maryland
| | - Carolyne Onyango-Makumbi
- Makerere University–Johns Hopkins University Research Collaboration/MU-JHU CARE LTD, Kampala, Uganda
| | - Shahin Lockman
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Carina Marquez
- Division of HIV, Infectious Diseases and Global Medicine, University of California San Francisco, and Zuckerberg San Francisco General Hospital
| | | | - François Dabis
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, Team IDLIC, France
| | | | - Sophie Le Coeur
- Institut de recherche pour le développement UMI 174-PHPT, Marseille, France
- Faculty of Associated Medical Sciences, Chiang Mai University, Thailand
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
- Institut National d’Etudes Démographiques (Ined), Paris
| | - Matthieu Rolland
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, Team IDLIC, France
| | - Pierre Joly
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, Team Biostatistics, France
| | - Marie-Louise Newell
- Institute for Developmental Science and Global Health Research Institute, Faculty of Medicine, University of Southampton, United Kingdom
| | - Renaud Becquet
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, Team IDLIC, France
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13
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Mkwanazi NB, Rochat TJ, Bland RM. Living with HIV, disclosure patterns and partnerships a decade after the introduction of HIV programmes in rural South Africa. AIDS Care 2018; 27 Suppl 1:65-72. [PMID: 26616127 PMCID: PMC4697196 DOI: 10.1080/09540121.2015.1028881] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Prevention of mother-to-child Transmission and HIV Treatment programmes were scaled-up in resource-constrained settings over a decade ago, but there is still much to be understood about women's experiences of living with HIV and their HIV disclosure patterns. This qualitative study explored women's experiences of living with HIV, 6–10 years after being diagnosed during pregnancy. The area has high HIV prevalence, and an established HIV treatment programme. Participants were enrolled in a larger intervention, “Amagugu”, that supported women (n = 281) to disclose their HIV status to their children. Post-intervention we conducted individual in-depth interviews with 20 randomly selected women, stratified by clinic catchment area, from the total sample. Interviews were entered into ATLAS.ti computer software for coding. Most women were living with their current sexual partner and half were still in a relationship with the child's biological father. Household exposure to HIV was high with the majority of women knowing at least one other HIV-infected adult in their household. Eighteen women had disclosed their HIV status to another person; nine had disclosed to their current partner first. Two main themes were identified in the analyses: living with HIV and the normalisation of HIV treatment at a family level; and the complexity of love relationships, in particular in long-term partnerships. A decade on, most women were living positively with HIV, accessing care, and reported experiencing little stigma. However, as HIV became normalised new challenges arose including concerns about access to quality care, and the need for family-centred care. Women's sexual choices and relationships were intertwined with feelings of love, loyalty and trust and the important supportive role played by partners and families was acknowledged, however, some aspects of living with HIV presented challenges including continuing to practise safe sex several years after HIV diagnosis.
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Affiliation(s)
- Ntombizodumo B Mkwanazi
- a Africa Centre for Health and Population Studies , University of KwaZulu-Natal , Durban , South Africa.,b School of Public Health, Faculty of Health Sciences , University of Witwatersrand , Johannesburg , South Africa
| | - Tamsen J Rochat
- a Africa Centre for Health and Population Studies , University of KwaZulu-Natal , Durban , South Africa.,c Section of Child and Adolescent Psychiatry, Department of Psychiatry , Oxford University , Oxford , UK
| | - Ruth M Bland
- a Africa Centre for Health and Population Studies , University of KwaZulu-Natal , Durban , South Africa.,b School of Public Health, Faculty of Health Sciences , University of Witwatersrand , Johannesburg , South Africa.,d Royal Hospital for Sick Children, University of Glasgow , Glasgow , UK
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14
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Abstract
PURPOSE OF REVIEW It is 20 years since the start of the combination antiretroviral therapy (cART) era and more than 10 years since cART scale-up began in resource-limited settings. We examined survival of vertically HIV-infected infants and children in the cART era. RECENT FINDINGS Good survival has been achieved on cART in all settings with up to 10-fold mortality reductions compared with before cART availability. Although mortality risk remains high in the first few months after cART initiation in young children with severe disease, it drops rapidly thereafter even for those who started with advanced disease, and longer term mortality risk is low. However, suboptimal retention on cART in routine programs threatens good survival outcomes and even on treatment children continue to experience high comorbidity risk; infections remain the major cause of death. Interventions to address infection risk include a cotrimoxazole prophylaxis, isoniazid preventive therapy, routine childhood and influenza immunization, and improving maternal survival. SUMMARY Pediatric survival has improved substantially with cART and HIV-infected children are aging into adulthood. It is important to ensure access to diagnosis and early cART, good program retention as well as optimal comorbidity prophylaxis and treatment to achieve the best possible long-term survival and health outcomes for vertically infected children.
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15
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Tabutin D, Masquelier B. Tendances et inégalités de mortalité de 1990 à 2015 dans les pays à revenu faible et intermédiaire. POPULATION 2017. [DOI: 10.3917/popu.1702.0227] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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16
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High Burden of Morbidity and Mortality but Not Growth Failure in Infants Exposed to but Uninfected with Human Immunodeficiency Virus in Tanzania. J Pediatr 2017; 180:191-199.e2. [PMID: 27829511 PMCID: PMC5183465 DOI: 10.1016/j.jpeds.2016.09.040] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 08/16/2016] [Accepted: 09/14/2016] [Indexed: 12/31/2022]
Abstract
OBJECTIVE To compare health and growth outcomes in children infected with HIV, children exposed to but uninfected with HIV, and children unexposed to HIV. STUDY DESIGN Our cohort included 3554 Tanzanian children enrolled in 2 trials of micronutrient supplementation. Among infants born to mothers infected with HIV, 264 were infected with HIV and 2088 were exposed to but uninfected at 6 weeks of age. An additional 1202 infants were unexposed to HIV. Infants were followed until 18 months of age, death, or loss to follow-up. Morbidity and growth were assessed at monthly nurse visits. RESULTS Compared with unexposed infants, hazard ratios (95% CI) for all-cause mortality in infants infected with HIV and infants who were exposed to but uninfected with HIV were 28.99 (14.83-56.66) and 2.79 (1.41-5.53), respectively, after adjusting for demographic and nutritional covariates. Compared with infants unexposed to HIV, infants infected with HIV also had a significantly greater risk of all measured morbidities, while infants who were exposed to but uninfected with HIV were significantly more likely to suffer from cough, fever, unscheduled outpatient visits, and hospitalizations. Infants infected with HIV also were more likely to experience stunting, wasting, and underweight at baseline and during follow-up. Infants exposed to but uninfected with HIV were more likely to be underweight at baseline (adjusted relative risk, 2.05; 95% CI, 1.45-2.89), but on average, experienced slower declines in height-for-age z-score, weight-for-age z-score, and weight-for-height z-score as well as a lower rate of stunting over follow-up, compared with unexposed infants. CONCLUSION In addition to preventing and treating HIV infection in infants, prevention-of-mother-to-child-transmission of HIV and child health services should also target children exposed to but uninfected with HIV to improve health outcomes in this vulnerable population. TRIAL REGISTRATION Clinicaltrials.gov: NCT00197730 and NCT00421668.
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17
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Keddy KH, Sooka A, Musekiwa A, Smith AM, Ismail H, Tau NP, Crowther-Gibson P, Angulo FJ, Klugman KP. Clinical and Microbiological Features of Salmonella Meningitis in a South African Population, 2003-2013. Clin Infect Dis 2016; 61 Suppl 4:S272-82. [PMID: 26449942 DOI: 10.1093/cid/civ685] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND The clinical and microbiological characteristics of nontyphoidal Salmonella (NTS) meningitis in South Africa, where human immunodeficiency virus (HIV) prevalence is high (approximately 15% in persons ≥15 years of age), were reviewed. METHODS From 2003 through 2013, 278 cases were identified through national laboratory-based surveillance. Clinical information (age, sex, outcome, Glasgow Coma Scale [GCS], and HIV status) was ascertained at selected sites. Isolates were serotyped; susceptibility testing and multilocus sequence typing on Salmonella enterica serovar Typhimurium isolates was performed. Multivariable logistic regression was used to determine factors associated with mortality outcome, using Stata software, version 13. RESULTS Where age was ascertained, 139 of 256 (54.3%) patients were <15 years. Males represented 151 of 267 (56.6%). Mortality outcome was recorded for 112 of 146 (76.7%) enhanced surveillance patients; 53 of 112 (47.3%) died. Death was associated with GCS ≤13 (adjusted odds ratio [OR], 18.7; 95% confidence interval [CI], 3.0-118.5; P = .002) on multivariable analysis. Where data were available, all 45 patients aged >15 years were HIV infected, compared with 24 of 46 (52.2%) patients aged <5 years. Neonates were less likely to be HIV infected than infants aged 2-12 months (OR, 4.8; 95% CI, 1.1-21.1; P = .039).Salmonella Typhimurium represented 106 of 238 (44.5%) serotyped isolates: 65 of 95 (68.4%) were ST313 vs ST19, respectively, and significantly associated with HIV-infected patients (P = .03) and multidrug resistance (OR, 6.6; 95% CI, 2.5-17.2; P < .001). CONCLUSIONS NTS meningitis in South Africa is highly associated with HIV in adults, with neonates (irrespective of HIV status), and with Salmonella Typhimurium ST313. GCS is the best predictor of mortality: early diagnosis and treatment are critical. Focused prevention requires further studies to understand the sources and transmission routes.
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Affiliation(s)
- Karen H Keddy
- Centre for Enteric Diseases, National Institute for Communicable Diseases Faculty of Health Sciences, University of the Witwatersrand, Johannesburg
| | - Arvinda Sooka
- Centre for Enteric Diseases, National Institute for Communicable Diseases
| | - Alfred Musekiwa
- International Emerging Infections Programme, South Africa Global Disease Detection Centre, Centers for Disease Control and Prevention, Pretoria
| | - Anthony M Smith
- Centre for Enteric Diseases, National Institute for Communicable Diseases Faculty of Health Sciences, University of the Witwatersrand, Johannesburg
| | - Husna Ismail
- Centre for Enteric Diseases, National Institute for Communicable Diseases
| | - Nomsa P Tau
- Centre for Enteric Diseases, National Institute for Communicable Diseases
| | - Penny Crowther-Gibson
- Division of Public Health Surveillance and Response, National Institute for Communicable Diseases, Johannesburg, South Africa
| | - Frederick J Angulo
- Division of Global Health Protection, Center for Global Health, Centers for Disease Control and Prevention
| | - Keith P Klugman
- Faculty of Health Sciences, University of the Witwatersrand, Johannesburg Hubert Department of Global Health, Rollins School of Public Health, and Division of Infectious Diseases, School of Medicine, Emory University, Atlanta, Georgia
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18
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Arunda MO, Choudhry V, Ekman B, Asamoah BO. Under-five mortality and maternal HIV status in Tanzania: analysis of trends between 2003 and 2012 using AIDS Indicator Survey data. Glob Health Action 2016; 9:31676. [PMID: 27329937 PMCID: PMC4916291 DOI: 10.3402/gha.v9.31676] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 05/04/2016] [Accepted: 05/24/2016] [Indexed: 12/25/2022] Open
Abstract
Background Mortality among children under five remains a significant health challenge across sub-Saharan Africa. HIV/AIDS is one of the leading contributors to the relatively slow decline in under-five mortality in this region. In Tanzania, HIV prevalence among under-five children is high and 90% of all infections are due to mother-to-child transmission. Objectives The study aimed to examine the association between maternal HIV-positive status and under-five mortality in Tanzania. It also aimed to estimate the proportions and trends of under-five mortality attributable to maternal HIV/AIDS in Tanzania between 2003 and 2012. Design Binomial logistic regression was used to analyze cross-sectional survey data from the Tanzania AIDS Indicator Surveys to examine the association between maternal HIV positivity and under-five mortality between 2003 and 2012. Results After controlling for confounders, the adjusted odds ratios were 1.5 (95% CI 1.1–1.9) in 2003–2004, 4.6 (95% CI 2.7–7.8) in 2007–2008, and 2.4 (95% CI 1.2–4.6) in 2011–2012. The maternal HIV-attributable mortality risk percent of under-five children was 3.7 percent in 2003–2004, 11.3 percent in 2007–2008 and 5.6% in 2011–2012. Conclusion Maternal HIV positivity is associated with under-five mortality in Tanzania, making maternal HIV serostatus a relevant determinant of whether a child will survive up to five years of age or not. The impact of maternal HIV/AIDS attributable mortality risk has a significant contribution to the overall under-five mortality in Tanzania. The continued monitoring of HIV and mortality trends is important for policy development and design of interventions.
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Affiliation(s)
- Malachi Ochieng Arunda
- International Master Programme in Public Health, Faculty of Medicine, Lund University, CRC, Jan Waldenströms gata 35, 205 02 Malmö, Sweden;
| | - Vikas Choudhry
- Social Medicine and Global Health, Department of Clinical Sciences, Malmo, Lund University, Sweden
| | - Björn Ekman
- Social Medicine and Global Health, Department of Clinical Sciences, Malmo, Lund University, Sweden
| | - Benedict Oppong Asamoah
- Social Medicine and Global Health, Department of Clinical Sciences, Malmo, Lund University, Sweden
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Arikawa S, Rollins N, Newell M, Becquet R. Mortality risk and associated factors in HIV-exposed, uninfected children. Trop Med Int Health 2016; 21:720-34. [PMID: 27091659 PMCID: PMC5021152 DOI: 10.1111/tmi.12695] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE With increasing maternal antiretroviral treatment (ART), the number of children newly infected with HIV has declined. However, the possible increased mortality in the large number of HIV-exposed, uninfected (HEU) children may be of concern. We quantified mortality risks among HEU children and reviewed associated factors. METHODS Systematic search of electronic databases (PubMed, Scopus). We included all studies reporting mortality of HEU children to age 60 months and associated factors. Relative risk of mortality between HEU and HIV-unexposed, uninfected (HUU) children was extracted where relevant. Inverse variance methods were used to adjust for study size. Random-effects models were fitted to obtain pooled estimates. RESULTS A total of 14 studies were included in the meta-analysis and 13 in the review of associated factors. The pooled cumulative mortality in HEU children was 5.5% (95% CI: 4.0-7.2; I(2) = 94%) at 12 months (11 studies) and 11.0% (95% CI: 7.6-15.0; I(2) = 93%) at 24 months (four studies). The pooled risk ratios for the mortality in HEU children compared to HUU children in the same setting were 1.9 (95% CI: 0.9-3.8; I(2) = 93%) at 12 months (four studies) and 2.4 (95% CI: 1.1-5.1; I(2) = 93%) at 24 months (three studies). CONCLUSION Compared to HUU children, mortality risk in HEU children was about double at both age points, although the association was not statistically significant at 12 months. Interpretation of the pooled estimates is confounded by considerable heterogeneity between studies. Further research is needed to characterise the impact of maternal death and breastfeeding on the survival of HEU infants in the context of maternal ART, where current evidence is limited.
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Affiliation(s)
- Shino Arikawa
- Inserm U1219, Bordeaux Population Health Research CentreBordeaux UniversityBordeauxFrance
| | - Nigel Rollins
- Department of Maternal, Newborn, Child and Adolescent HealthWorld Health OrganizationGenevaSwitzerland
| | - Marie‐Louise Newell
- Human Health and DevelopmentFaculty of MedicineUniversity of SouthamptonSouthamptonUK
| | - Renaud Becquet
- Inserm U1219, Bordeaux Population Health Research CentreBordeaux UniversityBordeauxFrance
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20
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le Roux SM, Abrams EJ, Nguyen K, Myer L. Clinical outcomes of HIV-exposed, HIV-uninfected children in sub-Saharan Africa. Trop Med Int Health 2016; 21:829-45. [PMID: 27125333 DOI: 10.1111/tmi.12716] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
OBJECTIVE HIV-exposed but HIV-uninfected (HEU) children are widely considered at increased risk of mortality and morbidity. Recent advances in prevention of mother-to-child HIV transmission (PMTCT) strategies, incorporating life-long universal maternal antiretroviral therapy (ART, "Option B+") with extended breastfeeding, may improve HEU child health substantially. We critically reviewed reports of mortality/morbidity among HEU and HIV-unexposed (HU) children in sub-Saharan Africa. METHODS We searched Medline, EMBASE, CINAHL, PsycINFO, Academic Search Premier, Global Health & Psychosocial Instruments databases, conference abstracts, and reference lists for longitudinal studies from sub-Saharan Africa reporting mortality and clinical morbidity among HIV-uninfected children aged ≤10 years, by maternal HIV status. Studies were appraised by Newcastle-Ottawa Scale and ACROBAT-NRSI. Due to substantial heterogeneity of study designs, populations and results (I(2) = 75%), data were not synthesised. RESULTS We included 37 reports (28 studies, 11 164 HEU children); methodological and reporting quality were variable. Most reports came from settings without universal access to maternal ART (n = 35). Results were conflicting, with some studies indicating increased risk of mortality, hospitalisation and/or under-nutrition among HEU children, while others found no evidence of increased risk. In subanalyses, improved maternal health, ART use and breastfeeding were strongly protective for all outcomes. Only 39% (11/28) of studies adjusted for major confounders. Reports from settings using universal maternal ART with breastfeeding (n = 2) found no differences in growth or development but did not report mortality or infectious morbidity. CONCLUSIONS The existing literature provides little insight into HEU child health under recently adopted PMTCT strategies. There is a need for robust comparative data on HEU and HIV-unexposed child health outcomes under Option B+; optimising breastfeeding practices and increasing maternal use of ART should be urgent public health priorities.
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Affiliation(s)
- Stanzi M le Roux
- Division of Epidemiology & Biostatistics, School of Public Health & Family Medicine, University of Cape Town, Cape Town, South Africa.,Centre for Infectious Diseases & Epidemiology Research, School of Public Health & Family Medicine, University of Cape Town, Cape Town, South Africa
| | - Elaine J Abrams
- ICAP, Mailman School of Public Health, Columbia University, New York, NY, USA.,College of Physicians & Surgeons, Columbia University, New York, NY, USA
| | - Kelly Nguyen
- Centre for Infectious Diseases & Epidemiology Research, School of Public Health & Family Medicine, University of Cape Town, Cape Town, South Africa
| | - Landon Myer
- Division of Epidemiology & Biostatistics, School of Public Health & Family Medicine, University of Cape Town, Cape Town, South Africa.,Centre for Infectious Diseases & Epidemiology Research, School of Public Health & Family Medicine, University of Cape Town, Cape Town, South Africa
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Thorne C, Aebi-Popp K. Beyond prevention of mother-to-child HIV transmission. Lancet HIV 2015; 3:e5-6. [PMID: 26762994 DOI: 10.1016/s2352-3018(15)00243-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2015] [Revised: 11/09/2015] [Accepted: 11/09/2015] [Indexed: 10/22/2022]
Affiliation(s)
- Claire Thorne
- UCL Institute of Child Health, University College London, London WC1N 1EH, UK.
| | - Karoline Aebi-Popp
- Department of Infectious Diseases, University Hospital Bern, Bern, Switzerland
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22
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Thorne C, Idele P, Chamla D, Romano S, Luo C, Newell ML. Morbidity and mortality in HIV-exposed uninfected children. Future Virol 2015. [DOI: 10.2217/fvl.15.70] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Approximately 1.5 million HIV-positive women become pregnant annually. Antiretroviral therapy (ART) is central to prevention of mother-to-child transmission and maternal ART continued postpartum allows breastfeeding for at least 1 year of life, with important benefits for the child. In the pre-ART era, it was suggested that HIV-exposed uninfected (HEU) children may be at higher morbidity and mortality risk than children of HIV-negative mothers, associated with maternal illness and death and the lack, or limited duration, of breastfeeding as recommended for preventing mother-to-child transmission at that time. This review summarizes the evidence on morbidity and mortality risk in HEU children compared with HIV-unexposed children, and assesses the likely impact of roll-out of ART, which prolongs maternal survival and allows breastfeeding.
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Affiliation(s)
- Claire Thorne
- Population, Policy & Practice Programme, UCL Institute of Child Health, University College London, London, WC1E 6BT, UK
| | - Priscilla Idele
- Data & Analytics Section, UNICEF New York, New York, NY, USA
| | - Dick Chamla
- Health Section, UNICEF New York, New York, NY, USA
| | | | - Chewe Luo
- HIV/AIDS Section, UNICEF New York, New York, NY, USA
| | - Marie-Louise Newell
- Faculty of Medicine/Faculty of Social & Human Sciences, University of Southampton, Southampton, SO17 1BJ, UK
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23
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Chihana ML, Price A, Floyd S, Mboma S, Mvula H, Branson K, Saul J, Zaba B, French N, Crampin AC, Glynn JR. Maternal HIV status associated with under-five mortality in rural Northern Malawi: a prospective cohort study. J Acquir Immune Defic Syndr 2015; 68:81-90. [PMID: 25321177 PMCID: PMC4338582 DOI: 10.1097/qai.0000000000000405] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Under-five mortality is decreasing but with little change in neonatal mortality rates. We examined the effect of maternal HIV status on under-five mortality and cause of death since widespread availability of antiretroviral therapy in rural Malawi. METHODS Children born in 2006-2011 in the Karonga demographic surveillance area were included. Maternal HIV status was available from HIV serosurveys. Age-specific mortality rate ratios for children born to HIV-positive and HIV-negative mothers were obtained by fitting a Poisson model accounting for child clustering by mother and adjusting for potential confounders. Cause of death was ascertained by verbal autopsy. FINDINGS There were 352 deaths among 6913 under-five singleton children followed for 20,754 person-years (py), giving a mortality rate of 17.0/1000 py overall, 218/1000 py (16.5/1000 live births) in neonates, 20/1000 py (17.4/1000 live births) in postneonatal infants, and 8/1000 py in 1-4 years old. Comparing those born to HIV-positive and HIV-negative mothers, the rate ratio adjusted for child age, sex, maternal age, parity, and drinking water source was 1.5 (95% confidence interval [CI]: 0.6 to 3.7) in neonates, 11.5 (95% CI: 7.2 to 18.5) in postneonatal infants, and 4.6 (95% CI: 2.7 to 7.9) in 1-4 years old. Birth injury/asphyxia, neonatal sepsis, and prematurity contributed >70% of neonatal deaths, whereas acute infections, malaria, diarrhea, and pneumonia accounted for most deaths in older children. CONCLUSIONS Maternal HIV status had little effect on neonatal mortality but was associated with much higher mortality in the postneonatal period and among older children. Greater attention to HIV care in pregnant women and mothers should help improve child survival, but broader interventions are needed to reduce neonatal mortality.
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Affiliation(s)
- Menard L Chihana
- *Karonga Prevention Study, Karonga, Malawi; †London School of Hygiene and Tropical Medicine, Faculty of Infectious Disease Epidemiology, London, United Kingdom; and ‡University of Liverpool, Institute of Infection and Global Health, Department of Clinical Infection, Microbiology and Immunology, Liverpool, United Kingdom
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24
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Mutevedzi PC, Newell ML. Review: [corrected] The changing face of the HIV epidemic in sub-Saharan Africa. Trop Med Int Health 2014; 19:1015-28. [PMID: 24976370 DOI: 10.1111/tmi.12344] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The widespread roll-out of antiretroviral therapy (ART) has substantially changed the face of human immunodeficiency virus (HIV). Timely initiation of ART in HIV-infected individuals dramatically reduces mortality and improves employment rates to levels prior to HIV infection. Recent findings from several studies have shown that ART reduces HIV transmission risk even with modest ART coverage of the HIV-infected population and imperfect ART adherence. While condoms are highly effective in the prevention of HIV acquisition, they are compromised by low and inconsistent usage; male medical circumcision substantially reduces HIV transmission but uptake remains relatively low; ART during pregnancy, delivery and breastfeeding can virtually eliminate mother-to-child transmission but implementation is challenging, especially in resource-limited settings. The current HIV prevention recommendations focus on a combination of preventions approach, including ART as treatment or pre- or post-exposure prophylaxis together with condoms, circumcision and sexual behaviour modification. Improved survival in HIV-infected individuals and reduced HIV transmission risk is beginning to result in limited HIV incidence decline at population level and substantial increases in HIV prevalence. However, achievements in HIV treatment and prevention are threatened by the challenges of lifelong adherence to preventive and therapeutic methods and by the ageing of the HIV-infected cohorts potentially complicating HIV management. Although current thinking suggests prevention of HIV transmission through early detection of infection immediately followed by ART could eventually result in elimination of the HIV epidemic, controversies remain as to whether we can treat our way out of the HIV epidemic.
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Affiliation(s)
- Portia C Mutevedzi
- Africa Centre for Health and Population Studies, University of KwaZulu-Natal, Somkhele, South Africa
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25
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Rose AM, Hall CS, Martinez-Alier N. Aetiology and management of malnutrition in HIV-positive children. Arch Dis Child 2014; 99:546-51. [PMID: 24406803 PMCID: PMC4033118 DOI: 10.1136/archdischild-2012-303348] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Revised: 12/05/2013] [Accepted: 12/06/2013] [Indexed: 12/30/2022]
Abstract
Worldwide, more than 3 million children are infected with HIV and, without treatment, mortality among these children is extremely high. Both acute and chronic malnutrition are major problems for HIV-positive children living in resource-limited settings. Malnutrition on a background of HIV represents a separate clinical entity, with unique medical and social aetiological factors. Children with HIV have a higher daily calorie requirement than HIV-negative peers and also a higher requirement for micronutrients; furthermore, coinfection and chronic diarrhoea due to HIV enteropathy play a major role in HIV-associated malnutrition. Contributory factors include late presentation to medical services, unavailability of antiretroviral therapy, other issues surrounding healthcare provision and food insecurity in HIV-positive households. Treatment protocols for malnutrition have been greatly improved, yet there remains a discrepancy in mortality between HIV-positive and HIV-negative children. In this review, the aetiology, prevention and treatment of malnutrition in HIV-positive children are examined, with particular focus on resource-limited settings where this problem is most prevalent.
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Affiliation(s)
- Anna M Rose
- Department of Genetics, UCL Institute of Ophthalmology, London, UK
- UCL Medical School, London, UK
| | - Charles S Hall
- UCL Medical School, London, UK
- UCL Institute of Global Health, London, UK
| | - Nuria Martinez-Alier
- Evelina London Children's Hospital, Guy's and St Thomas' NHS Foundation Trust, King's Health Partners, London, UK
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Abstract
PURPOSE OF REVIEW The introduction of combination ART to prevent mother-to-child-transmission (MTCT) has substantially decreased MTCT rates. However, there are concerns regarding safety of ART exposure for the mother, pregnancy outcome and infant. Changing MTCT prevention guidelines, with expanded eligibility, have led to a rapid increase of ART-treated women and exposed infants in high prevalence regions. RECENT FINDINGS Recent studies confirm that ART in HIV-infected mothers decreases disease progression and mortality, also after delivery. However extended duration of ART, especially HAART, during pregnancy has also been associated with premature delivery, small-for-gestational age (SGA) infants and pregnancy complications including hypertension. In the uninfected infant, ART exposure was associated with levels of hematologic and immunological markers, which, in high microbial regions, may be clinically relevant, especially in combination with premature birth and SGA. Altered mitochondrial functioning is reported in ART-exposed children although clinical implications remain difficult to discern. SUMMARY The benefit of ART in the prevention of MTCT is beyond doubt, but there are reports on adverse effects on pregnancy outcome and infant currently also from high prevalence regions. Further research regarding safety is urgently required, as the number of pregnant women on ART and exposed uninfected infants is rapidly increasing.
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27
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Abstract
Most infants born to human immunodeficiency virus (HIV)-infected women escape HIV infection. Infants evade infection despite an immature immune system and, in the case of breastfeeding, prolonged repetitive exposure. If infants become infected, the course of their infection and response to treatment differs dramatically depending upon the timing (in utero, intrapartum, or during breastfeeding) and potentially the route of their infection. Perinatally acquired HIV infection occurs during a critical window of immune development. HIV's perturbation of this dynamic process may account for the striking age-dependent differences in HIV disease progression. HIV infection also profoundly disrupts the maternal immune system upon which infants rely for protection and immune instruction. Therefore, it is not surprising that infants who escape HIV infection still suffer adverse effects. In this review, we highlight the unique aspects of pediatric HIV transmission and pathogenesis with a focus on mechanisms by which HIV infection during immune ontogeny may allow discovery of key elements for protection and control from HIV.
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28
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Ades V, Mwesigwa J, Natureeba P, Clark TD, Plenty A, Charlebois E, Achan J, Kamya MR, Havlir DV, Cohan D, Ruel TD. Neonatal mortality in HIV-exposed infants born to women receiving combination antiretroviral therapy in Rural Uganda. J Trop Pediatr 2013; 59:441-6. [PMID: 23764539 PMCID: PMC3842848 DOI: 10.1093/tropej/fmt044] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
As human immunodeficiency virus (HIV)-infected women gain access to combination antiretroviral therapy throughout sub-Saharan Africa, a growing number of infants are being born HIV-exposed but uninfected. Data about neonatal mortality and the impact of premature delivery, in this population are limited. We describe the 28-day mortality outcomes in a cohort of HIV-exposed infants who had ultrasound-confirmed gestational age in rural Uganda. There were 13 deaths among 351 infants, including 9 deaths in the perinatal period. Premature delivery was a strong predictor of mortality. The prevention of HIV transmission to infants is now possible in rural low-resource settings but the frequency of neonatal death among HIV-exposed infants remains extremely high, calling for new comprehensive interventions to reduce mortality in this growing population.
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Affiliation(s)
- Veronica Ades
- Department of Obstetrics and Gynecology, New York University, New York, NY 10016, USA
| | - Julia Mwesigwa
- Infectious Diseases Research Collaboration, Kampala, Uganda
| | - Paul Natureeba
- Infectious Diseases Research Collaboration, Kampala, Uganda
| | - Tamara D. Clark
- Department of Medicine, University of California, San Francisco, CA 94143, USA
| | - Albert Plenty
- Department of Medicine, University of California, San Francisco, CA 94143, USA
| | - Edwin Charlebois
- Department of Medicine, University of California, San Francisco, CA 94143, USA
| | - Jane Achan
- Department of Pediatrics, Makerere University College of Health Sciences, Kampala, Uganda
| | - Moses R. Kamya
- Department of Medicine, Makerere University College of Health Sciences, Kampala, Uganda
| | - Diane V. Havlir
- Department of Medicine, University of California, San Francisco, CA 94143, USA
| | - Deborah Cohan
- Obstetrics and Gynecology, University of California, San Francisco, CA 94143, USA
| | - Theodore D. Ruel
- Department of Pediatrics, University of California, San Francisco, CA 94143, USA
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Modi S, Chiu A, Ng’eno B, Kellerman SE, Sugandhi N, Muhe L. Understanding the contribution of common childhood illnesses and opportunistic infections to morbidity and mortality in children living with HIV in resource-limited settings. AIDS 2013; 27 Suppl 2:S159-67. [PMID: 24361625 PMCID: PMC4648290 DOI: 10.1097/qad.0000000000000080] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Although antiretroviral treatment (ART) has reduced the incidence of HIV-related opportunistic infections among children living with HIV, access to ART remains limited for children, especially in resource-limited settings. This paper reviews current knowledge on the contribution of opportunistic infections and common childhood illnesses to morbidity and mortality in children living with HIV, highlights interventions known to improve the health of children, and identifies research gaps for further exploration. DESIGN AND METHODS Literature review of peer-reviewed articles and abstracts combined with expert opinion and operational experience. RESULTS Morbidity and mortality due to opportunistic infections has decreased in both developed and resource-limited countries. However, the burden of HIV-related infections remains high, especially in sub-Saharan Africa, where the majority of HIV-infected children live. Limitations in diagnostic capacity in resource-limited settings have resulted in a relative paucity of data on opportunistic infections in children. Additionally, the reliance on clinical diagnosis means that opportunistic infections are often confused with common childhood illnesseswhich also contribute to excess morbidity and mortality in these children. Although several preventive interventions have been shown to decrease opportunistic infection-related mortality, implementation of many of these interventions remains inconsistent. CONCLUSIONS In order to reduce opportunistic infection-related mortality, early ART must be expanded, training for front-line clinicians must be improved, and additional research is needed to improve screening and diagnostic algorithms.
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Affiliation(s)
- Surbhi Modi
- Division of Global HIV/AIDS, Centers for Disease Control and Prevention, Atlanta, Geogia, USA
| | - Alex Chiu
- Division of Global HIV/AIDS, Centers for Disease Control and Prevention, Atlanta, Geogia, USA
- The CDC Experience Applied Epidemiology Fellowship, Scientific Education and Professional Development Program Office, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Bernadette Ng’eno
- Division of Global HIV/AIDS, Centers for Disease Control and Prevention, Nairobi, Kenya
| | | | | | - Lulu Muhe
- World Health Organization, Geneva, Switzerland
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30
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Abstract
Each year over a million infants are born to HIV-infected mothers. With scale up of prevention of mother-to-child transmission (PMTCT) interventions, only 210 000 of the 1.3 million infants born to mothers with HIV/AIDS in 2012 became infected. Current programmatic efforts directed at infants born to HIV-infected mothers are primarily focused on decreasing their risk of infection, but an emphasis on maternal interventions has meant follow-up of exposed infants has been poor. Programs are struggling to retain this population in care until the end of exposure, typically at the cessation of breastfeeding, between 12 and 24 months of age. But HIV exposure is a life-long condition that continues to impact the health and well being of a child long after exposure has ended. A better understanding of the impact of HIV on exposed infants is needed and new programs and interventions must take into consideration the long-term health needs of this growing population. The introduction of lifelong treatment for all HIV-infected pregnant women is an opportunity to rethink how we provide services adapted for the long-term retention of mother-infant pairs.
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31
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Sengayi M, Dwane N, Marinda E, Sipambo N, Fairlie L, Moultrie H. Predictors of loss to follow-up among children in the first and second years of antiretroviral treatment in Johannesburg, South Africa. Glob Health Action 2013; 6:19248. [PMID: 23364098 PMCID: PMC3556704 DOI: 10.3402/gha.v6i0.19248] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Revised: 11/13/2012] [Accepted: 11/13/2012] [Indexed: 01/03/2023] Open
Abstract
Background Ninety percent of the world's 2.1 million HIV-infected children live in sub-Saharan Africa, and 2.5% of South African children live with HIV. As HIV care and treatment programmes are scaled-up, a rise in loss to follow-up (LTFU) has been observed. Objective The aim of the study was to determine the rate of LTFU in children receiving antiretroviral treatment (ART) and to identify baseline characteristics associated with LTFU in the first year of treatment. We also explored the effect of patient characteristics at 12 months treatment on LTFU in the second year. Methods The study is an analysis of prospectively collected routine data of HIV-infected children at the Harriet Shezi Children's Clinic (HSCC) in Soweto, Johannesburg. Cox proportional hazards models were fitted to investigate associations between baseline characteristics and 12-month characteristics with LTFU in the first and second year on ART, respectively. Results The cumulative probability of LTFU at 12 months was 7.3% (95% CI 7.1–8.8). In the first 12 months on ART, independent predictors of LTFU were age <1 year at initiation, recent year of ART start, mother as a primary caregiver, and being underweight (WAZ ≤ −2). Among children still on treatment at 1 year from ART initiation, characteristics that predicted LTFU within the second year were recent year of ART start, mother as a primary caregiver, being underweight (WAZ ≤ −2), and low CD4 cell percentage. Conclusions There are similarities between the known predictors of death and the predictors of LTFU in the first and second years of ART. Knowing the vital status of children is important to determine LTFU. Although HIV-positive children cared for by their mothers appear to be at greater risk of becoming LTFU, further research is needed to explore the challenges faced by mothers and other caregivers and their impact on long-term HIV care. There is also a need to investigate the effects of differential access to ART between mothers and children and its impact on ART outcomes in children.
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Affiliation(s)
- Mazvita Sengayi
- Wits Reproductive Health and HIV Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
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Clark SJ, Kahn K, Houle B, Arteche A, Collinson MA, Tollman SM, Stein A. Young children's probability of dying before and after their mother's death: a rural South African population-based surveillance study. PLoS Med 2013; 10:e1001409. [PMID: 23555200 PMCID: PMC3608552 DOI: 10.1371/journal.pmed.1001409] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2012] [Accepted: 02/14/2013] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND There is evidence that a young child's risk of dying increases following the mother's death, but little is known about the risk when the mother becomes very ill prior to her death. We hypothesized that children would be more likely to die during the period several months before their mother's death, as well as for several months after her death. Therefore we investigated the relationship between young children's likelihood of dying and the timing of their mother's death and, in particular, the existence of a critical period of increased risk. METHODS AND FINDINGS Data from a health and socio-demographic surveillance system in rural South Africa were collected on children 0-5 y of age from 1 January 1994 to 31 December 2008. Discrete time survival analysis was used to estimate children's probability of dying before and after their mother's death, accounting for moderators. 1,244 children (3% of sample) died from 1994 to 2008. The probability of child death began to rise 6-11 mo prior to the mother's death and increased markedly during the 2 mo immediately before the month of her death (odds ratio [OR] 7.1 [95% CI 3.9-12.7]), in the month of her death (OR 12.6 [6.2-25.3]), and during the 2 mo following her death (OR 7.0 [3.2-15.6]). This increase in the probability of dying was more pronounced for children whose mothers died of AIDS or tuberculosis compared to other causes of death, but the pattern remained for causes unrelated to AIDS/tuberculosis. Infants aged 0-6 mo at the time of their mother's death were nine times more likely to die than children aged 2-5 y. The limitations of the study included the lack of knowledge about precisely when a very ill mother will die, a lack of information about child nutrition and care, and the diagnosis of AIDS deaths by verbal autopsy rather than serostatus. CONCLUSIONS Young children in lower income settings are more likely to die not only after their mother's death but also in the months before, when she is seriously ill. Interventions are urgently needed to support families both when the mother becomes very ill and after her death. Please see later in the article for the Editors' Summary.
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Affiliation(s)
- Samuel J. Clark
- Department of Sociology, University of Washington, Seattle, Washington, United States of America
- Institute of Behavioral Science, University of Colorado at Boulder, Boulder, Colorado, United States of America
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- INDEPTH Network, Accra, Ghana
| | - Kathleen Kahn
- Institute of Behavioral Science, University of Colorado at Boulder, Boulder, Colorado, United States of America
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- INDEPTH Network, Accra, Ghana
- Centre for Global Health Research, Umeå University, Umeå, Sweden
| | - Brian Houle
- Department of Sociology, University of Washington, Seattle, Washington, United States of America
- Institute of Behavioral Science, University of Colorado at Boulder, Boulder, Colorado, United States of America
- * E-mail:
| | - Adriane Arteche
- The Section of Child and Adolescent Psychiatry, Department of Psychiatry, University of Oxford, Oxford, United Kingdom
| | - Mark A. Collinson
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- INDEPTH Network, Accra, Ghana
- Centre for Global Health Research, Umeå University, Umeå, Sweden
| | - Stephen M. Tollman
- Institute of Behavioral Science, University of Colorado at Boulder, Boulder, Colorado, United States of America
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- INDEPTH Network, Accra, Ghana
- Centre for Global Health Research, Umeå University, Umeå, Sweden
| | - Alan Stein
- MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- The Section of Child and Adolescent Psychiatry, Department of Psychiatry, University of Oxford, Oxford, United Kingdom
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Barker PM, Mate K. Eliminating mother-to-child HIV transmission will require major improvements in maternal and child health services. Health Aff (Millwood) 2012; 31:1489-97. [PMID: 22778338 DOI: 10.1377/hlthaff.2012.0267] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Although some low- and middle-income countries have made progress toward eliminating mother-to-child transmission of HIV, others lack health systems that can deliver accessible and reliable care. We modeled how access to maternal and child health services and the effective delivery of interventions would affect efforts to eliminate HIV transmission during pregnancy and after childbirth in low- and middle-income countries. In countries with high HIV rates, our model predicts transmission rates of 19.7 percent at current levels of access and efficiency of maternal and child health and HIV treatment. Even if current treatment programs were carried out at or near perfect levels, we predict that significant residual mother-to-child transmission (7.9 percent) would remain. The model suggests that under current conditions, poor access to routine health services contributes three times more to overall mother-to-child HIV transmission than do current suboptimal levels of efficiency of anti-HIV-transmission interventions. We conclude that current efforts to optimize programs to prevent mother-to-child HIV transmission will not, on their own, eliminate HIV in newborns. Access to maternal and child health services will need to be dramatically improved, as will prevention measures, such as identifying and treating HIV before pregnancy.
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Affiliation(s)
- Pierre M Barker
- Institute for Healthcare Improvement (IHI), Cambridge, MA, USA.
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34
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Mkwanazi NB, Rochat TJ, Imrie J, Bland RM. Disclosure of maternal HIV status to children: considerations for research and practice in sub-Saharan Africa. Future Virol 2012. [DOI: 10.2217/fvl.12.109] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An estimated 2.8 million children are born to HIV-infected mothers each year, 2.5 million of whom are likely to be HIV-exposed but uninfected. In sub-Saharan Africa up to 40% of pregnant women are HIV-infected, resulting in large numbers of HIV-uninfected children living with at least one HIV-infected parent. These parents face many challenges, including the dilemma of when and how to disclose their HIV status to their children, particularly those who are pre-adolescent. This article summarizes the current evidence on maternal HIV disclosure to their HIV-uninfected children, explores the reported benefits of disclosure to children and mothers, highlights the gaps in knowledge and areas for future research, and discusses possible future intervention models focusing on primary school-aged children in sub-Saharan Africa.
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Affiliation(s)
- Ntombizodumo B Mkwanazi
- Africa Centre for Health & Population Studies, University of KwaZulu–Natal, PO Box 198, Somkhele, 3935, South Africa
- School of Public Health, University of Witwatersrand, Johannesburg, South Africa
| | - Tamsen J Rochat
- Africa Centre for Health & Population Studies, University of KwaZulu–Natal, PO Box 198, Somkhele, 3935, South Africa
- Department of Psychology, Stellenbosch University, South Africa
| | - John Imrie
- Africa Centre for Health & Population Studies, University of KwaZulu–Natal, PO Box 198, Somkhele, 3935, South Africa
- School of Public Health, University of Witwatersrand, Johannesburg, South Africa
- Centre for Sexual Health & HIV Research, Faculty of Population Health Sciences, University College London, UK
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Landes M, van Lettow M, Chan AK, Mayuni I, Schouten EJ, Bedell RA. Mortality and health outcomes of HIV-exposed and unexposed children in a PMTCT cohort in Malawi. PLoS One 2012; 7:e47337. [PMID: 23082157 PMCID: PMC3474798 DOI: 10.1371/journal.pone.0047337] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Accepted: 09/10/2012] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Mortality and morbidity among HIV-exposed children are thought to be high in Malawi. We sought to determine mortality and health outcomes of HIV-exposed and unexposed infants within a PMTCT program. METHOD Data were collected as part of a retrospective cohort study in Zomba District, Malawi. HIV-infected mothers were identified via antenatal, delivery and postpartum records with a delivery date 18-20 months prior; the next registered HIV-uninfected mother was identified as a control. By interview and health record review, data on socio-demographic characteristics, service uptake, and health outcomes were collected. HIV-testing was offered to all exposed children. RESULTS 173 HIV-infected and 214 uninfected mothers were included. 4 stillbirths (1.0%) occurred; among the 383 livebirths, 41 (10.7%) children died by 20 months (32 (18.7%) HIV-exposed and 9 unexposed children (4.3%; p<0.0001)). Risk factors for child death included: HIV-exposure [adjOR2.9(95%CI 1.1-7.2)], low birthweight [adjOR2.5(1.0-6.3)], previous child death (adjOR25.1(6.5-97.5)] and maternal death [adjOR5.3(11.4-20.5)]. At 20 months, HIV-infected children had significantly poorer health outcomes than HIV-unexposed children and HIV-exposed but uninfected children (HIV-EU), including: hospital admissions, delayed development, undernutrition and restrictions in function (Lansky scale); no significant differences were seen between HIV-EU and HIV-unexposed children. Overall, no difference was seen at 20 months among HIV-infected, HIV-EU and HIV-unexposed groups in Z-scores (%<-2.0) for weight, height and BMI. Risk factors for poor functional health status at 20 months included: HIV-infection [adjOR8.9(2.4-32.6)], maternal illness [adjOR2.8(1.5-5.0)] and low birthweight [adjOR2.0(1.0-4.1)]. CONCLUSION Child mortality remains high within this context and could be reduced through more effective PMTCT including prioritizing the treatment of maternal HIV infection to address the effect of maternal health and survival on infant health and survival. HIV-infected children demonstrated developmental delays, functional health and nutritional deficits that underscore the need for increased uptake of early infant diagnosis and institution of ART for all infected infants.
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Affiliation(s)
- Megan Landes
- Dignitas International, Zomba, Malawi
- Department of Family and Community Medicine, University of Toronto, Toronto, Canada
| | - Monique van Lettow
- Dignitas International, Zomba, Malawi
- Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
- * E-mail:
| | - Adrienne K. Chan
- Dignitas International, Zomba, Malawi
- Department of Family and Community Medicine, University of Toronto, Toronto, Canada
- Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
| | | | - Erik J. Schouten
- Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
- Management Sciences for Health, Lilongwe, Malawi
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Changes in pediatric HIV-related hospital admissions and mortality in Soweto, South Africa, 1996-2011: light at the end of the tunnel? J Acquir Immune Defic Syndr 2012; 60:503-10. [PMID: 22487588 DOI: 10.1097/qai.0b013e318256b4f8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
BACKGROUND With widespread availability of pediatric antiretroviral therapy and improved access to prevention of mother-to-child transmission (PMTCT), it is important to monitor the impact on pediatric HIV-related hospital admissions and in-hospital mortality in South Africa. METHODS Over a 15-year period, 4 independent surveillance studies were conducted in the pediatric wards at Chris Hani Baragwanath Hospital in Soweto, South Africa (1996, 2005, 2007, and late 2010 to early 2011). Trends in HIV prevalence and HIV-related mortality were evaluated. RESULTS HIV prevalence was similar during the first 3 periods: 26.2% (1996), 31.7% (2005), and 29.5% (2007) P > 0.10, but was lower in 2010-2011 (19.3%; P = 0.0005). Median age of the children admitted with HIV increased in the latter periods from 9.13 (interquartile range 3.6-28.8) months to 10.0 (3.0-44.5) months (P > 0.10) and 18.0 (6.2-69.8) months (P = 0.048). Median admission weight-for-age z-scores were similar (< -3 SD) for the latter 3 periods. Admission CD4 percentage increased from 0.0% (0.0-9.4) in 2005 to 15.0% (8.2-22.8) in 2007 (P < 0.0001) and was 18.7% (9.6-24.7) in 2010-2011 (P > 0.10). Mortality among all vs. HIV-infected admissions was 63 of 565 (11.2%) and 43 of 179 (24.0%) in 2005, 91 of 1510 (6.0%) and 53 of 440 (12.0%) in 2007, and 18 of 429 (4.2%) and 9 of 73 (12.3%) in 2010-2011. CONCLUSIONS HIV prevalence and mortality among pediatric admissions is decreasing. This is likely a result of improved PMTCT and wider antiretroviral therapy coverage. Continued effort to improve PMTCT coverage and identify and treat younger and older HIV-infected children is required to further reduce HIV-related morbidity and mortality.
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Ndirangu J, Newell ML, Thorne C, Bland R. Treating HIV-Infected Mothers Reduces under 5 Years of Age Mortality Rates to Levels Seen in Children of HIV-Uninfected Mothers in Rural South Africa. Antivir Ther 2012. [DOI: 10.3851/imp2029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- James Ndirangu
- Africa Centre for Health and Population Studies, University of KwaZulu-Natal, Somkhele, South Africa
| | - Marie-Louise Newell
- Africa Centre for Health and Population Studies, University of KwaZulu-Natal, Somkhele, South Africa
- MRC Centre of Epidemiology for Child Health, University College London Institute of Child Health, London, UK
| | - Claire Thorne
- MRC Centre of Epidemiology for Child Health, University College London Institute of Child Health, London, UK
| | - Ruth Bland
- Africa Centre for Health and Population Studies, University of KwaZulu-Natal, Somkhele, South Africa
- Glasgow University Medical Faculty, Glasgow, UK
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