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DiPietro L, Bingenheimer J, Talegawkar SA, Sedlander E, Yilma H, Pradhan P, Rimal RN. The Effects of the RANI Project on 6-Month Physical Activity Among Women Living in Rural India: A Randomized-Controlled Trial. WOMEN'S HEALTH REPORTS (NEW ROCHELLE, N.Y.) 2024; 5:522-529. [PMID: 39035149 PMCID: PMC11257113 DOI: 10.1089/whr.2023.0001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/23/2023] [Indexed: 07/23/2024]
Abstract
Background Anemia is associated with fatigue, low physical activity, and poor quality of life. The purpose of this study was to determine the effects of a field trial on 6-month change in anemia and physical activity among nonpregnant women living in rural India. Methods The Reduction in Anemia through Normative Innovations (RANI) Project is a cluster randomized controlled trial of a social norms-based intervention to reduce anemia among women (15-49 years). Participants (n = 292) performed a modified Queen's College Step Test (QCST) and wore an ActivPAL accelerometer for 3 days. Hemoglobin concentrations (g/dL) were determined using a HemoCue 301 photometer. Linear regression tested the effects of the intervention on 6-month change in hemoglobin and physical activity, while adjusting for age, body mass index, education, parity, and predicted VO2max. Results We observed no differences in hemoglobin (11.8 ± 1.2 vs.11.6 ± 1.4 g/dL) or overall physical activity (36.6 ± 2.1 vs. 35.3 ± 5.8 metabolic equivalent of task-hours/day) at 6 months between the treatment and control groups, respectively. In contrast, steps/day was significantly higher in the treatment, compared with the control group (β = 1353.83; 95% confidence interval: 372.46, 2335.31), independent of other covariables. Conclusions The potential to modify walking and other health-seeking behaviors using a social norms approach is worthy of further investigation among women living in rural India.Clinical Trial Registry - India: CTRI/2018/10/016186.
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Affiliation(s)
- Loretta DiPietro
- Department of Exercise and Nutrition Sciences, Milken Institute School of Public Health, The George Washington University, Washington, District of Columbia, USA
| | - Jeffrey Bingenheimer
- Department of Prevention and Community Health, Milken Institute School of Public Health, The George Washington University, Washington, District of Columbia, USA
| | - Sameera A. Talegawkar
- Department of Exercise and Nutrition Sciences, Milken Institute School of Public Health, The George Washington University, Washington, District of Columbia, USA
| | - Erica Sedlander
- Department of Prevention and Community Health, Milken Institute School of Public Health, The George Washington University, Washington, District of Columbia, USA
| | - Hagere Yilma
- Department of Prevention and Community Health, Milken Institute School of Public Health, The George Washington University, Washington, District of Columbia, USA
| | | | - Rajiv N. Rimal
- Department of Prevention and Community Health, Milken Institute School of Public Health, The George Washington University, Washington, District of Columbia, USA
- Department of Health, Behavior and Society, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
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Duclos G, Heireche F, Siroutot M, Delamarre L, Sartorius MA, Mergueditchian C, Velly L, Carvelli J, Bordais A, Pilarczyk E, Leone M. The association between regional guidelines compliance and mortality in severe trauma patients: an observational, retrospective study. Eur J Emerg Med 2024; 31:208-215. [PMID: 38265763 DOI: 10.1097/mej.0000000000001122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
BACKGROUND AND IMPORTANCE Trauma is a major cause of mortality and morbidity. Regional trauma systems are the cornerstones of healthcare systems, helping to improve outcomes and avoid preventable deaths in severe trauma patients. OBJECTIVES The goal of this study was to evaluate the association between compliance with the guidelines of a regional trauma management system and survival at 28 days of severe trauma patients. DESIGN, SETTINGS AND PARTICIPANTS We conducted a retrospective observational study from 1 January 2019 to 31 December 2019. All adult patients admitted for trauma at the University Hospital of Marseille (France) and requiring a pre-hospital medical team were analysed. Compliance with a list of 30 items based on the regional guidelines for the trauma management was evaluated. Each item was classified as compliant, not compliant or not applicable. The global compliance was calculated for each patient as the ratio between the number of compliant items over the number of applicable items. OUTCOME MEASURES AND ANALYSIS The primary aim was to measure the association between compliance with the guidelines and survival at 28 days using a logistic regression. Secondary objectives were to measure the association between compliance with the guidelines and survival at 28 days and 6 months according to the severity of the patients, using a cut-off of the injury severity score at 24. MAIN RESULTS A total of 494 patients with a median age of 35.0 (25.0-50.0) years were analysed. Global compliance with guidelines was 63%. Mortality at 28 days and 6 months was assessed at 33 (6.7%) and 37 (7.5%) patients, respectively. The level of compliance was associated with reduced mortality at 28 days [odds ratio (OR) at 0.94 and 95% confidence interval (CI) at 0.89-0.98]. In the subgroup of 122 patients with an injury severity score above 23, the level of compliance was associated with reduced mortality at 28 days [OR: 0.93 (95% CI: 0.88-0.99)] and 6 months [OR: 0.93 (95% CI: 0.87-0.99)]. CONCLUSION Increased levels of compliance with the guidelines in severe trauma patients were associated with an increase in survival, notably in the most severe patients.
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Affiliation(s)
- Gary Duclos
- Aix- Marseille Université, Service d'anesthésie et de réanimation, Assistance Publique Hôpitaux de Marseille, Hôpital Nord
| | - Fouzia Heireche
- Aix-Marseille Université, Service d'Aide Médicale d'Urgence 13, Assistance Publique Hôpitaux de Marseille, hôpital de la Timone, Marseille
| | | | - Louis Delamarre
- Aix- Marseille Université, Service d'anesthésie et de réanimation, Assistance Publique Hôpitaux de Marseille, Hôpital Nord
| | - Max-Antoine Sartorius
- Aix-Marseille Université, Service des urgences, Assistance Publique Hôpitaux de Marseille, hôpital Nord
| | - Celine Mergueditchian
- Aix-Marseille Université, Service des urgences, Assistance Publique Hôpitaux de Marseille, hôpital de la Timone
| | - Lionel Velly
- Aix-Marseille Université, Service d'anesthésie et de réanimation, Assistance Publique Hôpitaux de Marseille, hôpital de la Timone
| | - Julien Carvelli
- Aix-Marseille Université, Médecine Intensive et Réanimation, Unité de Réanimation des Urgences, Assistance Publique Hôpitaux de Marseille, hôpital de la Timone, Marseille, France
| | - Aurelia Bordais
- Aix-Marseille Université, Service des urgences, Assistance Publique Hôpitaux de Marseille, hôpital Nord
| | - Estelle Pilarczyk
- Aix-Marseille Université, Service d'Aide Médicale d'Urgence 13, Assistance Publique Hôpitaux de Marseille, hôpital de la Timone, Marseille
| | - Marc Leone
- Aix- Marseille Université, Service d'anesthésie et de réanimation, Assistance Publique Hôpitaux de Marseille, Hôpital Nord
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Ahn H(S, Lenet T, Gilbert RWD, Mallick R, Shaw JLV, Fergusson DA, McIsaac DI, Martel G. Accuracy of point-of-care testing devices for haemoglobin in the operating room: meta-analysis. BJS Open 2024; 8:zrad148. [PMID: 38266123 PMCID: PMC10807999 DOI: 10.1093/bjsopen/zrad148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 09/24/2023] [Accepted: 10/29/2023] [Indexed: 01/26/2024] Open
Abstract
BACKGROUND Point-of-care tests (POCT) for haemoglobin are increasingly used to guide intraoperative transfusion. However, their accuracy compared to central laboratory tests is unknown. The objective was to perform a systematic review and meta-analysis of method comparison studies assessing the accuracy of POCT versus central laboratory haemoglobin tests in patients undergoing surgery. METHODS Electronic databases were searched from inception to April 2020 (updated August 2023). Any methodological approach comparing haemoglobin measurements between POCT and central laboratory in patients undergoing surgery under anaesthesia in the operating room were included. Data abstraction was guided by PRISMA and risk of bias was assessed by QUADAS-2. Data were extracted independently and in duplicate by two reviewers. Outcomes included mean differences between POCT and central laboratory haemoglobin with associated standard deviations and 95% limits of agreement (LOA). RESULTS Of 3057 citations, 34 studies were included (n = 2427, 6857 paired measurements). Several devices were compared (pulse co-oximetry, n = 25; HemoCue, n = 10; iSTAT, n = 6; blood gas analysers, n = 10; haematology analyser, n = 2). Median sample size was 41 patients, and 11 studies were funded by device manufacturers. Fifteen of 34 studies had low risk of bias. Pooled mean differences (95% LOA) were: pulse co-oximeters 2.3 g/l (-25.2-29.8), HemoCue -0.3 g/l (-11.1-10.5), iSTAT -0.3 g/l (-8.4-7.8) and blood gas analysers -2.6 g/l (-17.8-12.7). CONCLUSION All POCT examining intraoperative haemoglobin measurement yielded pooled mean difference LOAs larger than the allowable limit difference of ±4 g/dl. Intraoperative haemoglobin measured by POCT should not be considered interchangeable with central laboratory values and caution is necessary when using these tests to guide intraoperative transfusion.
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Affiliation(s)
- Hilalion (San) Ahn
- Department of Surgery, The Ottawa Hospital, University of Ottawa, Ottawa, ON, Canada
| | - Tori Lenet
- Department of Surgery, The Ottawa Hospital, University of Ottawa, Ottawa, ON, Canada
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Richard W D Gilbert
- Department of Surgery, The Ottawa Hospital, University of Ottawa, Ottawa, ON, Canada
| | - Ranjeeta Mallick
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Julie L V Shaw
- Department of Pathology and Laboratory Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Dean A Fergusson
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Daniel I McIsaac
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
- Department of Anesthesiology & Pain Medicine, The Ottawa Hospital, University of Ottawa, Ottawa, ON, Canada
| | - Guillaume Martel
- Department of Surgery, The Ottawa Hospital, University of Ottawa, Ottawa, ON, Canada
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
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Brousseau K, Monette L, McIsaac DI, Workneh A, Tinmouth A, Shaw J, Ramsay T, Mallick R, Presseau J, Wherrett C, Carrier FM, Fergusson DA, Martel G. Point-of-care haemoglobin accuracy and transfusion outcomes in non-cardiac surgery at a Canadian tertiary academic hospital: protocol for the PREMISE observational study. BMJ Open 2023; 13:e075070. [PMID: 38101848 PMCID: PMC10729286 DOI: 10.1136/bmjopen-2023-075070] [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] [Received: 04/26/2023] [Accepted: 09/15/2023] [Indexed: 12/17/2023] Open
Abstract
INTRODUCTION Transfusions in surgery can be life-saving interventions, but inappropriate transfusions may lack clinical benefit and cause harm. Transfusion decision-making in surgery is complex and frequently informed by haemoglobin (Hgb) measurement in the operating room. Point-of-care testing for haemoglobin (POCT-Hgb) is increasingly relied on given its simplicity and rapid provision of results. POCT-Hgb devices lack adequate validation in the operative setting, particularly for Hgb values within the transfusion zone (60-100 g/L). This study aims to examine the accuracy of intraoperative POCT-Hgb instruments in non-cardiac surgery, and the association between POCT-Hgb measurements and transfusion decision-making. METHODS AND ANALYSIS PREMISE is an observational prospective method comparison study. Enrolment will occur when adult patients undergoing major non-cardiac surgery require POCT-Hgb, as determined by the treating team. Three concurrent POCT-Hgb results, considered as index tests, will be compared with a laboratory analysis of Hgb (lab-Hgb), considered the gold standard. Participants may have multiple POCT-Hgb measurements during surgery. The primary outcome is the difference in individual Hgb measurements between POCT-Hgb and lab-Hgb, primarily among measurements that are within the transfusion zone. Secondary outcomes include POCT-Hgb accuracy within the entire cohort, postoperative morbidity, mortality and transfusion rates. The sample size is 1750 POCT-Hgb measurements to obtain a minimum of 652 Hgb measurements <100 g/L, based on an estimated incidence of 38%. The sample size was calculated to fit a logistic regression model to predict instances when POCT-Hgb are inaccurate, using 4 g/L as an acceptable margin of error. ETHICS AND DISSEMINATION Institutional ethics approval has been obtained by the Ottawa Health Science Network-Research Ethics Board prior to initiating the study. Findings from this study will be published in peer-reviewed journals and presented at relevant scientific conferences. Social media will be leveraged to further disseminate the study results and engage with clinicians.
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Affiliation(s)
- Karine Brousseau
- Department of Surgery, The Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Leah Monette
- Department of Surgery, The Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Daniel I McIsaac
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Department of Anesthesiology and Pain Medicine, The Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada
| | - Aklile Workneh
- Department of Surgery, The Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Alan Tinmouth
- Division of Hematology, Department of Medicine, The Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada
| | - Julie Shaw
- Department of Biochemistry, Eastern Ontario Regional Laboratories Association, Ottawa, Ontario, Canada
- Department of Pathology and Laboratory Medicine, The Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada
| | - Tim Ramsay
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Ranjeeta Mallick
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Justin Presseau
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Christopher Wherrett
- Department of Anesthesiology and Pain Medicine, The Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada
| | | | - Dean A Fergusson
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Guillaume Martel
- Department of Surgery, The Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
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Alarcón-Yaquetto DE, Rueda-Torres L, Bailon N, Barreto PV, Málaga G. Accuracy of HemoCue301 portable hemoglobin analyzer for anemia screening in capillary blood from women of reproductive age in a deprived region of Northern Peru: An on-field study. PLoS One 2023; 18:e0293984. [PMID: 37963155 PMCID: PMC10645325 DOI: 10.1371/journal.pone.0293984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 10/23/2023] [Indexed: 11/16/2023] Open
Abstract
OBJECTIVE We aim to assess the accuracy and effectiveness of the HemoCue 301, a point-of-care (POC) device for measuring hemoglobin levels, and detecting anemia among individuals living in Tumbes, a rural, underserved area in Northern Peru. METHODS Baseline analysis of a clinical trial aimed at assessing the effect of multi-fortified bread (NCT05103709). Adult women with capillary blood HemoCue 301 readings below 12 g/dL were recruited in coastal city of Tumbes, Peru. A total of 306 women took part of the study, venous blood samples were taken and analyzed with an automated hematology analyzer. Serum samples were used to measure ferritin, serum iron and C reactive protein. RESULTS Capillary blood measured by the Hemocue 301 has a bias of 0.36 ± 0.93 g/dL respect to the automated Hb. More than 50% of women with normal ferritin values were classified as anemics according to the HemoCue 301. Automated Hb cut-off of 10.8 g/dL [AUC 0.82 (0.77-0.88)] had a specificity of 0.817 and a sensitivity 0.711 while with the HemoCue 301 cut-off of 11.1 g/dL [AUC 0.71 (0.62-0.79)] had a specificity of 0.697 and a sensitivity 0.688. The performance of the automated Hb cut-off was significantly better than the HemoCue (p<0.001). CONCLUSION Caution must be taken when using POC devices, especially with values around the threshold. Cut-off values found in our study could be used as surrogate means when no confirmatory tests are available. Clinical outcomes should be prioritized when diagnosing iron deficiency anemia in women of reproductive age to ensure proper diagnosis.
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Affiliation(s)
| | - Lenin Rueda-Torres
- Unidad de Conocimiento y Evidencia (CONEVID), Universidad Peruana Cayetano Heredia, Lima, Perú
| | - Nataly Bailon
- Unidad de Conocimiento y Evidencia (CONEVID), Universidad Peruana Cayetano Heredia, Lima, Perú
| | | | - Germán Málaga
- Unidad de Conocimiento y Evidencia (CONEVID), Universidad Peruana Cayetano Heredia, Lima, Perú
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Chaudhary E, George F, Saji A, Dey S, Ghosh S, Thomas T, Kurpad AV, Sharma S, Singh N, Agarwal S, Mehta U. Cumulative effect of PM 2.5 components is larger than the effect of PM 2.5 mass on child health in India. Nat Commun 2023; 14:6955. [PMID: 37907499 PMCID: PMC10618175 DOI: 10.1038/s41467-023-42709-1] [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: 03/23/2023] [Accepted: 10/19/2023] [Indexed: 11/02/2023] Open
Abstract
While studies on ambient fine particulate matter (PM2.5) exposure effect on child health are available, the differential effects, if any, of exposure to PM2.5 species are unexplored in lower and middle-income countries. Using multiple logistic regression, we showed that for every 10 μg m-3 increase in PM2.5 exposure, anaemia, acute respiratory infection, and low birth weight prevalence increase by 10% (95% uncertainty interval, UI: 9-11), 11% (8-13), and 5% (4-6), respectively, among children in India. NO3-, elemental carbon, and NH4+ were more associated with the three health outcomes than other PM2.5 species. We found that the total PM2.5 mass as a surrogate marker for air pollution exposure could substantially underestimate the true composite impact of different components of PM2.5. Our findings provide key indigenous evidence to prioritize control strategies for reducing exposure to more toxic species for greater child health benefits in India.
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Affiliation(s)
- Ekta Chaudhary
- Centre for Atmospheric Sciences, Indian Institute of Technology Delhi, New Delhi, India
| | - Franciosalgeo George
- Division of Epidemiology, Biostatistics, and Population Health, St John's Research Institute, Bangalore, India
| | - Aswathi Saji
- Division of Epidemiology, Biostatistics, and Population Health, St John's Research Institute, Bangalore, India
| | - Sagnik Dey
- Centre for Atmospheric Sciences, Indian Institute of Technology Delhi, New Delhi, India.
- Centre of Excellence for Research on Clean Air, IIT Delhi, New Delhi, India.
- School of Public Policy, IIT Delhi, New Delhi, India.
| | - Santu Ghosh
- Department of Biostatistics, St John's Medical College, Bengaluru, India.
| | - Tinku Thomas
- Department of Biostatistics, St John's Medical College, Bengaluru, India
| | - Anura V Kurpad
- Department of Physiology, St John's Medical College, Bengaluru, India
| | | | - Nimish Singh
- Centre for Atmospheric Sciences, Indian Institute of Technology Delhi, New Delhi, India
- TERI, New Delhi, India
| | - Shivang Agarwal
- TERI, New Delhi, India
- Johns Hopkins University, Baltimore, MD, USA
| | - Unnati Mehta
- Harvard T.H. Chan School of Public Health, Boston, USA
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Biruksew A, Demeke A, Birhanu Z, Golassa L, Getnet M, Yewhalaw D. Schoolchildren with asymptomatic malaria are potential hotspot for malaria reservoir in Ethiopia: implications for malaria control and elimination efforts. Malar J 2023; 22:311. [PMID: 37845680 PMCID: PMC10580533 DOI: 10.1186/s12936-023-04736-7] [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: 07/14/2023] [Accepted: 09/30/2023] [Indexed: 10/18/2023] Open
Abstract
BACKGROUND Schoolchildren with asymptomatic malaria infections often go undiagnosed and untreated, serving as reservoirs for infection that hamper malaria control and elimination efforts. In this context, little is known about the magnitude of asymptomatic malaria infections in apparently healthy schoolchildren in Ethiopia. This study was aimed at determining the prevalence of asymptomatic malaria infection and its associated factors in apparently healthy schoolchildren in Ethiopia. METHODS From September 2021 to January 2022, a school-based cross-sectional study was conducted on 994 apparently healthy schoolchildren (aged 6-15 years) selected from 21 primary schools in the Gomma district, of Jimma zone, southwestern Oromia, Ethiopia. A multi-stage sampling technique was used to select schools and participants. After allocating the total sample proportionally to each school and then to each grade, participants were selected using the lottery method from a list of student records (rosters). Finger-pricked blood samples were collected for microscopy blood film preparation and malaria rapid diagnostic test (RDT) (SD Bioline Malaria Ag Pf/Pv). Moreover, dry blood spots (DBSs) were prepared onto filter papers for quantitative real time polymerase chain reaction (qPCR) analysis. RESULTS As determined by RDT and microscopy, the prevalence of asymptomatic malaria was 2.20% and 1.51%, respectively. Using qPCR, the overall prevalence was 5.03% (50/994). Of this, Plasmodium falciparum, Plasmodium vivax and mixed infections accounted for 90%, 6% and 4%, respectively. Submicroscopic asymptomatic malaria infection was also accounted for 70% (35/50) of the overall prevalence. Household head age, nighttime outdoor activities of household heads, family history of malaria, absence of insecticide-treated nets (ITN), and presence of stagnant water around the houses are all significantly associated with asymptomatic malaria infections among schoolchildren. CONCLUSIONS This study found that both RDT and microscopy underestimated the prevalence of asymptomatic malaria in schoolchildren. However, qPCR was able to detect even low levels of parasitaemia and revealed a higher prevalence of asymptomatic submicroscopic malaria infections. The findings imply that schoolchildren with asymptomatic malaria infection are potential hotspot for malaria reservoir that fuels ongoing transmission. Therefore, it is imperative to include schoolchildren and schools in malaria intervention package and equally important is the adoption of more advanced and sensitive diagnostic tools, which would be crucial for successful malaria control and elimination efforts. Targeted interventions for asymptomatic malaria-infected schoolchildren can provide invaluable support to the National Malaria Control Programme in controlling and eventually eliminating the disease.
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Affiliation(s)
- Abdissa Biruksew
- School of Medical Laboratory Sciences, Faculty of Health Sciences, Institute of Health, Jimma University, Jimma, Ethiopia
- Tropical and Infectious Diseases Research Center (TIRC), Jimma University, Jimma, Ethiopia
| | | | - Zewdie Birhanu
- Department of Health, Behavior, and Society, Faculty of Public Health, Institute of Health Jimma University, Jimma, Ethiopia
| | - Lemu Golassa
- Aklilu Lemma Institute of Pathobiology, Addis Ababa University, Addis Ababa, Ethiopia
| | - Masrie Getnet
- Department of Biostatistics and Epidemiology, Faculty of Public Health, Institute of Health, Jimma University, Jimma, Ethiopia
| | - Delenasaw Yewhalaw
- School of Medical Laboratory Sciences, Faculty of Health Sciences, Institute of Health, Jimma University, Jimma, Ethiopia
- Tropical and Infectious Diseases Research Center (TIRC), Jimma University, Jimma, Ethiopia
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Russell E, Hartley R. Point of care testing in the perioperative period. Br J Hosp Med (Lond) 2023; 84:1-3. [PMID: 37906067 DOI: 10.12968/hmed.2023.0190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
The range of point of care tests continues to increase. Point of care testing is frequently undertaken by nonlaboratory personnel and clinicians should understand the tests available and their applicability in clinical practice.
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Affiliation(s)
- Evelina Russell
- Department of Anaesthetics, University College London Hospitals NHS Foundation Trust, London, UK
| | - Robert Hartley
- Department of Anaesthetics, Royal Cornwall Hospital NHS Trust, Truro, UK
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Wemakor A, Kwaako M, Abdul-Rahman A. Nutritional, health and socio-demographic determinants of anaemia in adolescent girls in Kumbungu District, Ghana. BMC Nutr 2023; 9:90. [PMID: 37480139 PMCID: PMC10362769 DOI: 10.1186/s40795-023-00749-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 07/12/2023] [Indexed: 07/23/2023] Open
Abstract
BACKGROUND Anaemia is a serious health problem among adolescent girls in Ghana. The aims of this study were to measure the prevalence and identify the nutritional, health, and socio-demographic determinants of anaemia in adolescent girls in Kumbungu District, Northern Region, Ghana. METHOD An analytical cross-sectional study involving 370 adolescent girls residing in Kumbungu district, selected using multi-stage sampling procedure, was conducted. A semi-structured questionnaire, 24-hr dietary recall, food frequency questionnaire, Food Insecurity Experience scale, and anthropometry were used to gather information on socio-demographic characteristics, nutrition knowledge, dietary diversity score, food consumption score, food consumption frequency, household food insecurity, and waist and hip circumferences. Haemoglobin was measured using a portable HemoCue hg 301 + Analyzer. Anaemia in the adolescent girls was defined as haemoglobin concentration less than 12 g/dl. Chi-square test and binary logistic regression analysis were used to identify the determinants of anaemia. RESULTS The mean (± SD) age was 13.95 (± 2.94) years, and the majority of the girls were in school (79.5%) and lived in a rural area (81.1%). The mean (± SD) haemoglobin was 11.27 (± 1.19) g/dl, and 74.6% of the respondents had anaemia, with 1.6% having severe anaemia. The health determinant of anaemia was frequency of feeling nervous in the past 6 months [Adjusted Odds Ratio (AOR): 2.12: 95% Confidence Interval (CI): 1.17-3.89; p: 0.014], and the socio-demographic determinants were residential community status (AOR: 0.42; 95% CI: 0.24-0.75; p: 0.003), and fathers' educational qualification (AOR: 2.57, 95% CI: 1.17-5.65, p: 0.019). No nutritional determinants of anaemia were identified for this study population. CONCLUSION The prevalence of anaemia was very high and the frequency of feeling nervous in the past 6 months, residential community status, and fathers' educational qualification were associated with anaemia among adolescent girls in Kumbungu district, Ghana. The prevalence of anaemia measured highlights the need for intensification of anaemia prevention and management interventions in the district.
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Affiliation(s)
- Anthony Wemakor
- Department of Nutritional Sciences, School of Allied Health Sciences, University for Development Studies, P. O. Box TL 1883, Tamale, Tamale, Ghana.
| | - Matilda Kwaako
- Department of Nutritional Sciences, School of Allied Health Sciences, University for Development Studies, P. O. Box TL 1883, Tamale, Tamale, Ghana
| | - Adinan Abdul-Rahman
- Department of Nutritional Sciences, School of Allied Health Sciences, University for Development Studies, P. O. Box TL 1883, Tamale, Tamale, Ghana
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Haggenmüller V, Bogler L, Weber AC, Kumar A, Bärnighausen T, Danquah I, Vollmer S. Smartphone-based point-of-care anemia screening in rural Bihar in India. COMMUNICATIONS MEDICINE 2023; 3:38. [PMID: 36949164 PMCID: PMC10033918 DOI: 10.1038/s43856-023-00267-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 03/02/2023] [Indexed: 03/24/2023] Open
Abstract
BACKGROUND The high prevalence of anemia in resource-constrained settings calls for easy-to-use, inexpensive screening tools. The Sanguina Smartphone App, an innovative tool for non-invasive hemoglobin estimation via color-sensitive, algorithm-based analysis of fingernail bed images, was validated in the United States. This study evaluates the performance of the App in a population with different socio-economic, ethnic, demographic and cultural composition in rural Bihar, India. METHODS For 272 mainly adult patients of a private health centre, hemoglobin measurement with the App is compared with the gold standard laboratory blood analysis. For a second sample of 179 children attending pre-schools, hemoglobin measurement with the App is compared to the results of the HemoCue Hb 301, a point-of-care device using a small blood sample, serving as the reference standard for field-based settings. RESULTS The App reaches ±4.43 g/dl accuracy and 0.38 g/dl bias of comparator values in the clinic-based sample, and ±3.54 g/dl and 1.30 g/dl, respectively in the pre-school sample. After retraining the algorithm with the collected data, the validity of the upgraded version is retested showing an improved performance (accuracy of ±2.25 g/dl, bias of 0.25 g/dl), corresponding to the results of the original validation study from the United States. CONCLUSIONS The initial version of the App does not achieve the accuracy needed for diagnosis or screening. After retraining the algorithm, it achieves an accuracy sufficient for screening. The improved version with the potential for further adaptions is a promising easy-to-use, inexpensive screening tool for anemia in resource-constrained point-of-care settings.
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Affiliation(s)
- Verena Haggenmüller
- Heidelberg Institute of Global Health, Heidelberg University Hospital, Im Neuenheimer Feld 130.3, 69120, Heidelberg, Germany
| | - Lisa Bogler
- Centre for Modern Indian Studies (CeMIS), University of Goettingen, Waldweg 26, 37073, Göttingen, Germany.
| | - Ann-Charline Weber
- Centre for Modern Indian Studies (CeMIS), University of Goettingen, Waldweg 26, 37073, Göttingen, Germany
| | - Abhijeet Kumar
- Centre for Modern Indian Studies (CeMIS), University of Goettingen, Waldweg 26, 37073, Göttingen, Germany
| | - Till Bärnighausen
- Heidelberg Institute of Global Health, Heidelberg University Hospital, Im Neuenheimer Feld 130.3, 69120, Heidelberg, Germany
| | - Ina Danquah
- Heidelberg Institute of Global Health, Heidelberg University Hospital, Im Neuenheimer Feld 130.3, 69120, Heidelberg, Germany
| | - Sebastian Vollmer
- Centre for Modern Indian Studies (CeMIS), University of Goettingen, Waldweg 26, 37073, Göttingen, Germany
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11
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Fothergill A, Crider KS, Johnson CB, Raj MP, Guetterman HM, Bose B, Rose CE, Qi YP, Williams JL, Kuriyan R, Bonam W, Finkelstein JL. Comparison of Anemia Screening Methods Using Paired Venous Samples in Women of Reproductive Age in Southern India. J Nutr 2023; 152:2978-2992. [PMID: 36130238 PMCID: PMC9840000 DOI: 10.1093/jn/nxac218] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 08/28/2022] [Accepted: 09/16/2022] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Anemia is an important public health problem, and accurate estimates may inform policy and programs. Although hemoglobin (Hb) assessment of venous blood via automated hematology analyzers (AHAs) is recommended, most population-based surveys estimate anemia prevalence based on analysis of capillary blood via portable hemoglobinometers. OBJECTIVES We aimed to evaluate screening methods for hemoglobin and anemia assessment using paired venous samples. METHODS Participants were women 15-40 y who were not pregnant or lactating. Paired venous whole blood samples (n = 896) were analyzed for hemoglobin (Hb) via portable hemoglobinometer (HemoCue 301) and Coulter Counter AHA. Anemia and severe anemia were defined as Hb <12.0g/dL and <8.0 g/dL, respectively. Bland-Altman methods were used to assess the level of agreement for Hb results (mean difference, SD of differences, limits of agreement). Diagnostic accuracy parameters (sensitivity, specificity, positive predictive value, negative predictive value, accuracy) were calculated to evaluate HemoCue performance compared to the AHA reference, overall and by sociodemographic, nutritional, and metabolic characteristics. RESULTS The estimated anemia prevalence was significantly lower via HemoCue vs. AHA (36.3% compared with 41.6%; P value < 0.0001). The HemoCue had 84.4% accuracy for anemia screening and 98.8% for severe anemia, compared to the AHA reference. The HemoCue had 74.8% sensitivity and 91.2% specificity, compared to AHA. HemoCue sensitivity was higher in women with iron deficiency [serum ferritin (SF) <15.0 μg/L: 81.6% compared with SF ≥15.0 μg/L: 41.3%], and lower in women with metabolic risk factors, including overweight [BMI ≥25.0 kg/m2: 63.9% vs. BMI <25.0 kg/m2: 78.8%], or elevated CRP (>1.0 mg/L: 67.2% vs. ≤1.0 mg/L: 82.9%), trunk fat (>35%: 62.7% vs. ≤35%: 80.1%), or whole-body fat (>35%: 63.9% vs. ≤35%: 80.3%). CONCLUSIONS Findings suggest that women with anemia may be incorrectly identified as not anemic via portable hemoglobinometer, and anemia prevalence may be underestimated at the population level.This study was registered at clinicaltrials.gov as NCT04048330.
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Affiliation(s)
- Amy Fothergill
- Division of Nutritional Sciences, Cornell University, Ithaca, NY, USA
| | - Krista S Crider
- National Center on Birth Defects and Developmental Disabilities, CDC, Atlanta, GA, USA
| | | | - Mical P Raj
- Arogyavaram Medical Centre, Andhra Pradesh, India
| | | | - Beena Bose
- Division of Nutrition, St. John's Research Institute, Bangalore, India
| | - Charles E Rose
- National Center on Birth Defects and Developmental Disabilities, CDC, Atlanta, GA, USA
| | - Yan P Qi
- National Center on Birth Defects and Developmental Disabilities, CDC, Atlanta, GA, USA
| | - Jennifer L Williams
- National Center on Birth Defects and Developmental Disabilities, CDC, Atlanta, GA, USA
| | - Rebecca Kuriyan
- Division of Nutrition, St. John's Research Institute, Bangalore, India
| | - Wesley Bonam
- Arogyavaram Medical Centre, Andhra Pradesh, India
| | - Julia L Finkelstein
- Division of Nutritional Sciences, Cornell University, Ithaca, NY, USA
- Division of Nutrition, St. John's Research Institute, Bangalore, India
- Division of Epidemiology, Department of Population Health Sciences, Weill Cornell Medical College, New York, NY, USA
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12
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Stawschenko E, Schaller T, Kern B, Bode B, Dörries F, Kusche-Vihrog K, Gehring H, Wegerich P. Current Status of Measurement Accuracy for Total Hemoglobin Concentration in the Clinical Context. BIOSENSORS 2022; 12:1147. [PMID: 36551114 PMCID: PMC9775510 DOI: 10.3390/bios12121147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 11/22/2022] [Accepted: 12/01/2022] [Indexed: 06/17/2023]
Abstract
OBJECTIVE The main objective of this investigation is to provide data about the accuracy of total hemoglobin concentration measurements with respect to clinical settings, and to devices within the categories of point-of-care and reference systems. In particular, tolerance of hemoglobin concentrations below 9 g/dL that have become common in clinical practice today determines the need to demonstrate the limits of measurement accuracy in patient care. METHODS Samples extracted from six units of heparinized human blood with total hemoglobin concentrations ranging from 3 to 18 g/dL were assigned to the test devices in a random order. The pool of test devices comprised blood gas analyzers, an automatic hematology analyzer, a laboratory reference method, and the point-of-care system HemoCue. To reduce the pre-analytic error, each sample was measured three times. Due to the characteristics of the tested devices and methods, we selected the mean values of the data from all these devices, measured at the corresponding total hemoglobin concentrations, as the reference. MAIN RESULTS The measurement results of the test devices overlap within strict limits (R2 = 0.999). Only the detailed analysis provides information about minor but systematic deviations. In the group of clinically relevant devices, which are involved in patient blood management decisions, the relative differences were within the limit of +/- 5 % for values down to 3 g/dL. CONCLUSIONS A clinically relevant change of +/- 0.5 g/dL of total hemoglobin concentration can be detected with all selected devices and methods. Compliance with more stringent definitions-these are the relative differences of 5 % in relation to the corresponding reference values and the clinically adapted thresholds in the format of a tolerance level analysis-was achieved by the clinical devices assessed here.
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Affiliation(s)
- Elena Stawschenko
- Department of Anaesthesiology and Intensive Care Medicine, University Medical Center Schleswig-Holstein, Campus Luebeck, 23538 Luebeck, Germany
| | - Tim Schaller
- Department of Anaesthesiology and Intensive Care Medicine, University Medical Center Schleswig-Holstein, Campus Luebeck, 23538 Luebeck, Germany
- Institute of Biomedical Engineering, University of Luebeck, 23562 Luebeck, Germany
| | - Benjamin Kern
- Medical Sensors and Devices Laboratory, Lübeck University of Applied Sciences, 23562 Luebeck, Germany
| | - Berit Bode
- Department of Anaesthesiology and Intensive Care Medicine, University Medical Center Schleswig-Holstein, Campus Luebeck, 23538 Luebeck, Germany
| | - Frank Dörries
- Northern Scientific Tec & Integration GmbH, Kollaustr. 11-13, 22525 Hamburg, Germany
| | | | - Hartmut Gehring
- Department of Anaesthesiology and Intensive Care Medicine, University Medical Center Schleswig-Holstein, Campus Luebeck, 23538 Luebeck, Germany
| | - Philipp Wegerich
- Institute of Biomedical Engineering, University of Luebeck, 23562 Luebeck, Germany
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13
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Fu Q, Qi T, Wu Z, He Y, Guan S, Luo S, Zhang Q, Luo W, Xiao W, Situ B, Zheng L. A portable smartphone-based hemoglobin point-of-care testing platform for accurate anemia diagnostics. Biosens Bioelectron 2022; 217:114711. [PMID: 36113300 DOI: 10.1016/j.bios.2022.114711] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 09/06/2022] [Accepted: 09/07/2022] [Indexed: 11/02/2022]
Abstract
Anemia affects over 2 billion people worldwide, with the heaviest burden borne by women and children. At present, anemia is diagnosed by measuring hemoglobin (Hb) levels, which must be done in hospitals or commercial laboratories by skilled operators. In this work, we report a portable, affordable ($3), easy-to-operate (1 min) and accurate smartphone-based Hb analyzer (SHbA) that uses a drop of finger-pricked blood for anemia point-of-care test (POCT) applications. POCT of Hb was achieved using a smartphone ambient light sensor (ALS) to accurately measure the absorbance of colorimetric Hb biochemical analysis reagents in a microcuvette, as well as an Android-based application for results analysis. SHbA validation results agreed well with those reported by a hematology analyzer, and the SHbA has an anemia diagnosis sensitivity of 95.4% and specificity of 96.3% for venous blood (n = 360) and a sensitivity of 96.39% and specificity of 95.58% for fingertip blood (n = 475). In addition, SHbA exhibits excellent performance in the diagnosis and treatment guidance of anemia high-risk populations, including tumor chemotherapy patients (n = 424), pregnant women (n = 214) and thalassemia patients (n = 208). Importantly, volunteer self-testing results (n = 20) indicate that SHbA can be used for home-based anemia diagnosis and monitoring. SHbA has the advantages of high sensitivity and specificity while being cheap and easy to operate, making it widely applicable for the diagnosis and treatment of anemia, especially for high-risk patients in areas with poor medical resources.
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Affiliation(s)
- Qiangqiang Fu
- Southern Medical University, Nanfang Hospital, Department of Laboratory Medicine, Guangzhou, 510515, Guangdong, PR China
| | - Tao Qi
- Southern Medical University, Nanfang Hospital, Department of Laboratory Medicine, Guangzhou, 510515, Guangdong, PR China
| | - Ze Wu
- Southern Medical University, Nanfang Hospital, Department of Laboratory Medicine, Guangzhou, 510515, Guangdong, PR China
| | - Yongjian He
- Southern Medical University, Nanfang Hospital, Department of Laboratory Medicine, Guangzhou, 510515, Guangdong, PR China
| | - Shujuan Guan
- Southern Medical University, Nanfang Hospital, Department of Laboratory Medicine, Guangzhou, 510515, Guangdong, PR China
| | - Shihua Luo
- Southern Medical University, Nanfang Hospital, Department of Laboratory Medicine, Guangzhou, 510515, Guangdong, PR China
| | - Qi Zhang
- Southern Medical University, Nanfang Hospital, Department of Laboratory Medicine, Guangzhou, 510515, Guangdong, PR China
| | - Wenfeng Luo
- Central Laboratory of Panyu Central Hospital, Guangzhou Panyu Central Hospital, Guangzhou, Guangdong, 511400, PR China
| | - Wei Xiao
- Department of Laboratory Medicine, Guangdong Second Provincial General Hospital, Guangzhou, 510317, PR China
| | - Bo Situ
- Southern Medical University, Nanfang Hospital, Department of Laboratory Medicine, Guangzhou, 510515, Guangdong, PR China.
| | - Lei Zheng
- Southern Medical University, Nanfang Hospital, Department of Laboratory Medicine, Guangzhou, 510515, Guangdong, PR China.
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14
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Randell M, Li M, Rachmi CN, Jusril H, Fox O, Wibowo L, Rah JH, Pronyk P, Harmiko M, Phebe N, Ahmad A, Ariawan I, Negin J, Raynes-Greenow C. Prevalence of, and factors associated with anaemia in children aged 1-3 years in Aceh, Indonesia: A cross-sectional study. Nutr Health 2022:2601060221116195. [PMID: 35876347 DOI: 10.1177/02601060221116195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Background: Child anaemia continues to represent a major public health challenge in lower-and-middle income countries. It has serious long-term consequences for child growth and development. In Indonesia, there was a 10% increase in the national prevalence of child anaemia between 2013 and 2018. Aim: This study aims to assess the prevalence of, and factors associated with anaemia among children aged one to three years in eight districts in Aceh Province, Indonesia. Methods: A cross-sectional study was conducted on a sample of 1148 mother-child dyads aged one to three years between November and December 2018. The sampling process involved a three-stage cluster sampling design using the probability proportionate to size methodology. Anaemia status was determined using haemoglobin level (Hb < 11.0 g/dL). Data were analysed using multivariable logistic regression to estimate adjusted odds ratios (aOR) and their 95% confidence intervals (95% CI) for associated factors. Results: The overall prevalence of anaemia was 76.1% (869/1142). 44.7% (510/1142) and 28.6% (327/1142) had moderate and mild anaemia, respectively. Child aged 12-24 months (aOR: 2.00, 95% CI: 1.26-3.17), not receiving routine immunisation (aOR: 2.62, 95% CI: 1.34-5.10), and maternal anaemia (aOR: 2.15, 95% CI: 1.59-2.90) were significantly associated with anaemia. Conclusion: The prevalence of anaemia among the children in this study was high, and was associated with child age, immunisation status, and maternal anaemia. These findings provide further insight into anaemia as a public health issue at a sub-national level in Indonesia and for development of targeted programmes to address associated risk factors of child anaemia.
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Affiliation(s)
- Madeleine Randell
- Sydney School of Public Health, The University of Sydney, Camperdown, Australia
| | - Mu Li
- Sydney School of Public Health, The University of Sydney, Camperdown, Australia
| | | | | | - Olivia Fox
- Sydney School of Public Health, The University of Sydney, Camperdown, Australia
| | | | | | - Paul Pronyk
- SingHealth Duke-NUS Global Health Department, Singapore
| | | | | | - Aripin Ahmad
- Nutrition Department of 483792Aceh Health Polytechnic, Ministry of Health, Banda Aceh, Aceh, Indonesia
| | - Iwan Ariawan
- 608659Reconstra Utama Integra, Jakarta, Indonesia
| | - Joel Negin
- Sydney School of Public Health, The University of Sydney, Camperdown, Australia
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15
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Sedlander E, Pant I, Bingenheimer J, Yilma H, Patro L, Mohanty S, Ganjoo R, Rimal R. How does a social norms-based intervention affect behaviour change? Interim findings from a cluster randomised controlled trial in Odisha, India. BMJ Open 2022; 12:e053152. [PMID: 35803626 PMCID: PMC9272109 DOI: 10.1136/bmjopen-2021-053152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Behaviour change interventions targeting social norms are burgeoning, but researchers have little guidance on what they look like, and which components affect behaviour change. The Reduction in Anaemia through Normative Innovations (RANI) project designed an intervention to increase iron folic acid (IFA) consumption in Odisha, India. OBJECTIVE This paper examines the effect of the intervention at midline to understand which components of the RANI intervention affect uptake. METHODS Using a cluster randomised controlled design, we collected baseline data and midline data 6 months later from women of reproductive age in the control and treatment arms (n=3800) in Angul, Odisha, India. Using nested models, we analysed data from three different intervention components, monthly community-based testing for anaemia, participatory group education sessions, and videos, to determine the extent to which exposure to each of these components accounted for the overall intervention effect on haemoglobin and self-reported IFA use. RESULTS Overall, residing in a treatment as opposed to control village had little effect on midline haemoglobin, but increased the odds of taking supplements by 17 times. Exposure to each of the intervention components had a dose-response relationship with self-reported IFA use. These components, separately and together, accounted for most of the overall effect of treatment assignment on IFA use. CONCLUSIONS All intervention components increased iron supplement use to differing degrees of magnitude. It appears that a social norms-based approach can result in improving IFA uptake, though improvements in haemoglobin counts were not yet discernible.
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Affiliation(s)
- Erica Sedlander
- Institute for Health and Aging, Department of Social and Behavioral Sciences, University of California, San Francisco, California, USA
| | - Ichhya Pant
- Department of Prevention and Community Health, George Washington University, Milken Institute School of Public Health, Washington, District of Columbia, USA
| | - Jeffrey Bingenheimer
- Department of Prevention and Community Health, George Washington University, Milken Institute School of Public Health, Washington, District of Columbia, USA
| | - Hagere Yilma
- Deptartment of Health Science, Boston University Sargent College, Boston, Massachusetts, USA
| | | | | | - Rohini Ganjoo
- Department of Biomedical Laboratory Sciences, George Washington University, School of Medicine and Health Sciences, Ashburn, Virginia, USA
| | - Rajiv Rimal
- Department of Health, Behavior & Society, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
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16
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Riswari SF, Budiman MF, Darmayanti D, X E, Prodjosoewojo S, Susandi E, Oehadian A, Alisjahbana B. A Comparison of the Accuracy of Handheld Hemoglobinometer and Hematocrit Measurements for Detecting Plasma Leakage in Dengue Hemorrhagic Fever. Int J Gen Med 2022; 15:2589-2595. [PMID: 35282645 PMCID: PMC8906851 DOI: 10.2147/ijgm.s343017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Accepted: 01/13/2022] [Indexed: 11/25/2022] Open
Abstract
Purpose Practical methods for detecting plasma leakage should be readily available in all areas where dengue is endemic. We compared the accuracy of measurements obtained with a handheld HemoCue® Hb 201 instrument used for hemoglobin point-of-care testing (Hb-POCT) with that of measurements of hematocrit (Ht) levels for detecting plasma leakage in dengue patients. Patients and Methods We performed both measurements using the HemoCue® Hb201 system and microhematocrit method on EDTA blood taken from dengue patients at three time points during their hospitalization. Ascites, pleural effusion, or gallbladder thickening determined through ultrasound examinations were considered the gold standard for determining dengue hemorrhagic fever (DHF) versus dengue fever (DF). Results Close agreement between Hb-POCT and Ht measurements was indicated by an r square value of 0.845 in a linear regression. The sensitivity results for distinguishing between DHF and DF at admission were similar for Hb-POCT (63.6%) and Ht (66.7%) (Kappa = 0.75) using the optimal cutoff point determined via ROC analysis. Delta differences (in percentage) for Hb-POCT and Ht between the highest and lowest values showed lower sensitivity (45.5% and 48.5%, respectively; Kappa 0.60) when the optimal cutoff point was applied. Recommended cutoffs of ≥20% to confirm plasma leakage provided a slightly higher sensitivity using Hb-POCT (18.2%) compared with the sensitivity obtained using Ht (15.2%) with Kappa value of 97.9%. Conclusion Our results showed that the accuracy of Hb POCT measurements was similar and not inferior to Ht measurements for detecting plasma leakage in patients with DHF. We recommend that further evaluations are conducted to determine the optimal cutoff point given the low sensitivity associated with using ≥20% Hb-POCT or Ht increases to determine hemoconcentration.
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17
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Shifti DM, Chojenta C, Holliday EG, Loxton D. Maternal anemia and baby birth size mediate the association between short birth interval and under-five undernutrition in Ethiopia: a generalized structural equation modeling approach. BMC Pediatr 2022; 22:108. [PMID: 35227241 PMCID: PMC8883659 DOI: 10.1186/s12887-022-03169-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 02/22/2022] [Indexed: 11/10/2022] Open
Abstract
Background Studies assessing the association between short birth interval, a birth-to-birth interval of less than 33 months, and under-five undernutrition have produced inconclusive results. This study aimed to assess the relationship between short birth interval and outcomes of stunting, underweight, and wasting among children aged under-five in Ethiopia, and potential mediation of any associations by maternal anemia and baby birth size. Method Data from the 2016 Ethiopia Demographic and Health Survey (EDHS) was used. Stunting, wasting, and underweight among children aged under-five were outcome variables. Generalized Structural Equation Modeling (GSEM) was used to examine associations between short birth interval and outcomes, and to assess hypothesized mediation by maternal anemia and baby birth size. Results Significant associations between short birth interval and stunting (AOR = 1.49; 95% CI = 1.35, 1.66) and underweight (AOR = 1.43; 95% CI = 1.28, 1.61) were found. There was no observed association between short birth interval and wasting (AOR = 1.05; 95% CI = 0.90, 1.23). Maternal anemia and baby birth size had a significant partial mediation effect on the association between short birth interval and stunting (the coefficient reduced from β = 0.337, p < 0.001 to β = 0.286, p < 0.001) and underweight (the coefficient reduced from β = 0.449, p < 0.001 to β = 0.338, p < 0.001). Maternal anemia and baby birth size mediated 4.2% and 4.6% of the total effect of short birth interval on stunting and underweight, respectively. Conclusion Maternal anemia and baby birth size were identified as mediators of the association between short birth interval and under-five undernutrition status. Policies and programs targeting the reduction of under-five undernutrition should integrate strategies to reduce maternal anemia and small baby birth size in addition to short birth interval.
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Affiliation(s)
- Desalegn Markos Shifti
- Saint Paul's Hospital Millennium Medical College, Addis Ababa, Ethiopia. .,Centre for Women's Health Research, School of Medicine and Public Health, University of Newcastle, New South Wales, Australia.
| | - Catherine Chojenta
- Centre for Women's Health Research, School of Medicine and Public Health, University of Newcastle, New South Wales, Australia
| | - Elizabeth G Holliday
- Centre for Clinical Epidemiology and Biostatistics, School of Medicine and Public Health, University of Newcastle, New South Wales, Australia
| | - Deborah Loxton
- Centre for Women's Health Research, School of Medicine and Public Health, University of Newcastle, New South Wales, Australia
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18
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Singh A, Ram S, Singh S, Tripathi P. Prevalence and determinants of anaemia among men in rural India: Evidence from a nationally representative survey. PLOS GLOBAL PUBLIC HEALTH 2022; 2:e0001159. [PMID: 36962811 PMCID: PMC10021440 DOI: 10.1371/journal.pgph.0001159] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 10/10/2022] [Indexed: 12/03/2022]
Abstract
Anaemia among men is a significant health issue which has not been given due importance. Only a handful of studies have captured the prevalence of anaemia among men. There is dearth of evidence base on anaemia among men in India. Therefore, this study attempts to fill this research gap by examining the socioeconomic, geographic, health-related, and behavioural differentials of anaemia among rural men in India. We analysed a cross-sectional sample of 61,481 men aged between 15-54 and living in rural areas from the National Family Health Survey (NFHS-5), conducted in 2019-21. Bivariate statistics and multivariable logistic regression were employed to assess the factors associated with anaemia. In rural India, three out of ten men were found to be anaemic. Older men [49-54 years] (Odds Ratio: 1.10, 95% CI, 1.00-1.21), men without a formal education (OR: 1.36, 95% CI, 1.26-1.47), those from Scheduled Tribes (OR: 1.48, 95% CI, 1.39-1.58) and men who belonged to the poorest wealth quintile (OR: 1.24, 95% CI: 1.25-1.35) had a higher risk of anaemia. Men who were underweight were more likely to be anaemic (OR: 1.36, 95% CI: 1.30-1.43). When compared to the central region, men from the eastern (OR: 1.47, 95% CI: 1.39-1.55) parts of India had higher a risk of anaemia. The findings suggest the need to recognise anaemia among men as a public health issue. When developing policy, significant variation in socioeconomic, geographic, health-related, and behavioural factors must be taken into account. Men should also be screened on a regular basis in order to reduce the national burden of anaemia.
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Affiliation(s)
- Aditya Singh
- Department of Geography, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Sumit Ram
- Department of Geography, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Shivani Singh
- India Health Action Trust, Lucknow, Uttar Pradesh, India
| | - Pooja Tripathi
- Department of Geography, Banaras Hindu University, Varanasi, Uttar Pradesh, India
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Zerdo Z, Bastiaens H, Anthierens S, Massebo F, Masne M, Biresaw G, Shewangizaw M, Tunje A, Chisha Y, Yohannes T, Van Geertruyden JP. Prevalence and associated risk factors of asymptomatic malaria and anaemia among school-aged children in Dara Mallo and Uba Debretsehay districts: results from baseline cluster randomized trial. Malar J 2021; 20:400. [PMID: 34645464 PMCID: PMC8513194 DOI: 10.1186/s12936-021-03937-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 09/30/2021] [Indexed: 12/31/2022] Open
Abstract
Background Despite the growing evidence that malaria and anaemia are two interlinked health problems of school-aged children (SAC) in developing countries, there is scarce information about malaria among SAC in Ethiopia. Moreover, anaemia-related studies were more concentrated in easily accessible areas. This study aimed to assess the prevalence of malaria and anaemia and corresponding risk factors among SAC in Dara Mallo and Uba Debretshay districts, in hard to reach areas, so as to inform appropriate integrated interventions for both diseases. Methods This study was part of baseline data collected for a cluster-randomized trial registered in Pan African Clinical Trials Registry (PACTR202001837195738). Data were collected from 2167 SAC and their households through face-to-face interview; malaria was diagnosed by using rapid diagnostic test (RDT); haemoglobin concentration was determined using hemoCue hb 301 and adjusted for altitude to determine anaemic status; helminth infections were determined by using kato-katz, and anthropometric measurements were made to determine nutritional status of children. Generalized mixed effects logistic regression model was used to assess the association between predictor variables and malaria and anaemia using school as a random variable. Results The overall prevalence of malaria was 1.62% (95% CI 1.15–2.27%) (35/2167). Of the 35 children positive for malaria, 20 (57.14%), 3 (8.57%) and 12 (34.29%) were due to Plasmodium falciparum, Plasmodium vivax and mixed infections of P. falciparum and P. vivax, respectively. Malaria was significantly lower among children from literate household head (Adjusted OR = 0.38; 95% CI 0.15–0.95) and residence house located at an altitude range above 1100 masl (AOR = 0.40; 95% CI 0.17–0.94). The prevalence of anaemia was 22.00% (95% CI 20.3–23.8%) (477/2167) and was significantly reduced by eating legumes, nuts or seed group of food in their 24-h dietary diversity recall (AOR = 0.64; 95% CI 0.41–0.99). Conclusions The prevalence of malaria was low and unevenly distributed per school while the overall prevalence of anaemia was moderate. It is important to implement integrated interventions targeting both malaria and anaemia, with special emphasis given to children from illiterate households and living at an altitude below 1100 masl. The micronutrient content of locally grown legumes should be further investigated to recommend specific interventions to overcome anaemia.
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Affiliation(s)
- Zerihun Zerdo
- Department of Medical Laboratory Science, College of Medicine and Health Sciences, Arba Minch University, Arba Minch, Ethiopia. .,Global Health Institute, Antwerp University, Antwerp, Belgium.
| | - Hilde Bastiaens
- Department of Family Medicine and Population Health, Antwerp University, Antwerp, Belgium
| | - Sibyl Anthierens
- Department of Family Medicine and Population Health, Antwerp University, Antwerp, Belgium
| | - Fekadu Massebo
- Department of Biology, College of Natural Sciences, Arba Minch University, Arba Minch, Ethiopia
| | - Matewos Masne
- Department of Biology, College of Natural Sciences, Arba Minch University, Arba Minch, Ethiopia
| | - Gelila Biresaw
- Department of Medical Laboratory Science, College of Medicine and Health Sciences, Arba Minch University, Arba Minch, Ethiopia
| | - Misgun Shewangizaw
- Department of Public Health, College of Medicine and Health Sciences, Arba Minch University, Arba Minch, Ethiopia
| | - Abayneh Tunje
- Department of Public Health, College of Medicine and Health Sciences, Arba Minch University, Arba Minch, Ethiopia
| | - Yilma Chisha
- Department of Public Health, College of Medicine and Health Sciences, Arba Minch University, Arba Minch, Ethiopia
| | - Tsegaye Yohannes
- Department of Medical Laboratory Science, College of Medicine and Health Sciences, Arba Minch University, Arba Minch, Ethiopia
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Jin Y, Talegawkar SA, Sedlander E, DiPietro L, Parida M, Ganjoo R, Aluc A, Rimal R. Dietary Diversity and Its Associations with Anemia among Women of Reproductive Age in Rural Odisha, India. Ecol Food Nutr 2021; 61:304-318. [PMID: 34644220 DOI: 10.1080/03670244.2021.1987230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The aim of this study is to examine diet diversity, predictors associated with it, and its associations with anemia among non-pregnant women of reproductive age in rural India. Baseline data from the Reductions in Anemia through Normative Innovations (RANI) project were used and included 980 non-pregnant women aged 15-49 years from Odisha, India. The Food and Agriculture Organization's Minimum Dietary Diversity for Women (MDD-W) was used to assess diet diversity. Anemia was determined by hemoglobin level and categorized as normal (hemoglobin ≥ 12 g/dL), mild (11 ≤ hemoglobin <12 g/dL) and moderate/severe (hemoglobin < 11 g/dL). Multivariable logistic regression was used to examine factors associated with diet diversity, and multinomial logistic regression for associations between diet diversity and anemia. Forty-four percent of women were classified as having a diverse diet (MDD-W ≥5). Women with higher education level, belonging to a scheduled caste (vs. tribe), and higher body mass index had higher odds of a diversified diet (p < .05 for all). A more diverse diet was associated with 30% of lower odds of mild anemia (odds ratio = 0.7, 95% confidence interval: 0.5-0.98, p = .035), however, no statistically significant associations were found for moderate/severe anemia. Diet diversity was inversely associated with prevalence of mild anemia among non-pregnant women of reproductive age in rural India.
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Affiliation(s)
- Yichen Jin
- Department of Exercise and Nutrition Sciences, Milken Institute School of Public Health, the George Washington University, Washington, United States
| | - Sameera A Talegawkar
- Department of Exercise and Nutrition Sciences, Milken Institute School of Public Health, the George Washington University, Washington, United States
| | - Erica Sedlander
- Department of Family and Community Medicine, University of California, San Francisco, United States
| | - Loretta DiPietro
- Department of Exercise and Nutrition Sciences, Milken Institute School of Public Health, the George Washington University, Washington, United States
| | | | - Rohini Ganjoo
- Department of Biomedical Laboratory Sciences, School of Medicine and Health Sciences, the George Washington University, Ashburn, United States
| | - Aika Aluc
- Department of Prevention and Community Health, Milken Institute School of Public Health, the George Washington University, Washington, United States
| | - Rajiv Rimal
- Department of Health Behavior and Society, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, United States
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An R, Man Y, Iram S, Kucukal E, Hasan MN, Huang Y, Goreke U, Bode A, Hill A, Cheng K, Sekyonda Z, Ahuja SP, Little JA, Hinczewski M, Gurkan UA. Point-of-care microchip electrophoresis for integrated anemia and hemoglobin variant testing. LAB ON A CHIP 2021; 21:3863-3875. [PMID: 34585199 PMCID: PMC9714341 DOI: 10.1039/d1lc00371b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Anemia affects over 25% of the world's population with the heaviest burden borne by women and children. Genetic hemoglobin (Hb) variants, such as sickle cell disease, are among the major causes of anemia. Anemia and Hb variant are pathologically interrelated and have an overlapping geographical distribution. We present the first point-of-care (POC) platform to perform both anemia detection and Hb variant identification, using a single paper-based electrophoresis test. Feasibility of this new integrated diagnostic approach is demonstrated via testing individuals with anemia and/or sickle cell disease. Hemoglobin level determination is performed by an artificial neural network (ANN) based machine learning algorithm, which achieves a mean absolute error of 0.55 g dL-1 and a bias of -0.10 g dL-1 against the gold standard (95% limits of agreement: 1.5 g dL-1) from Bland-Altman analysis on the test set. Resultant anemia detection is achieved with 100% sensitivity and 92.3% specificity. With the same tests, subjects with sickle cell disease were identified with 100% sensitivity and specificity. Overall, the presented platform enabled, for the first time, integrated anemia detection and hemoglobin variant identification using a single point-of-care test.
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Affiliation(s)
- Ran An
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA.
| | - Yuncheng Man
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA.
| | - Shamreen Iram
- Department of Physics, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Erdem Kucukal
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA.
| | - Muhammad Noman Hasan
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA.
| | - Yuning Huang
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA.
| | - Utku Goreke
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA.
| | - Allison Bode
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA.
| | - Ailis Hill
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA.
| | - Kevin Cheng
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA.
| | - Zoe Sekyonda
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Sanjay P Ahuja
- Department of Pediatrics, Division of Hematology and Oncology, University Hospitals Rainbow Babies and Children's Hospital, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Jane A Little
- Division of Hematology & UNC Blood Research Center, Department of Medicine, University of North Carolina, Chapel Hill, NC, USA
| | - Michael Hinczewski
- Department of Physics, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Umut A Gurkan
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA.
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH 44106, USA
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Shapiro KE, Buhimschi IA, Fleisher J. Accuracy of anemia screening by point-of-care hemoglobin testing in patients seeking abortion. Contraception 2021; 105:51-54. [PMID: 34517000 DOI: 10.1016/j.contraception.2021.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 08/27/2021] [Accepted: 09/01/2021] [Indexed: 11/24/2022]
Abstract
OBJECTIVE Accurate and timely diagnosis of anemia in pregnancy is necessary for safe management of abortion care. Screening for anemia in abortion care is often accomplished using commercially-available point-of-care tests from capillary blood, but the validity of this test has not been investigated in the context of abortion care. We sought to determine the accuracy of a capillary hemoglobin (Hb) among pregnant patients seeking induced abortion. STUDY DESIGN We conducted a retrospective study of patients seeking abortion care at the University of Illinois at Chicago. We identified 108 subjects with paired capillary Hb and venous complete blood count (CBC) hemoglobin measurements within 7 days of each other and within 14 days before abortion. Agreement analysis was performed using Passing-Bablok regression and Bland-Altman plots. RESULTS More patients were deemed anemic by capillary than by venous Hb measurement (32% vs 19%, p = 0.030). Capillary Hb correlated with venous Hb (r = 0.85, p < 0.001). The average bias for capillary Hb was -1.1 ± 1.0 g/dL. Step-wise, multivariable linear regression identified venous Hb as the only determinant of capillary Hb, and failed to identify any other predictors of bias. The agreement analysis between capillary and venous Hb by Passing-Bablok regression demonstrated systematic and proportional differences. CONCLUSION Results from capillary Hb may be biased toward diagnosing anemia and should be interpreted with caution. IMPLICATIONS Misdiagnosing anemia in abortion care can have several consequences and may prevent timely medical abortion or cause delayed procedural abortion. Clinical correlation, and possibly confirmation by venous complete blood count measurement, should be considered before clinical decision-making based solely upon the capillary point-of-care assay.
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Affiliation(s)
- Katherine E Shapiro
- Department of Obstetrics & Gynecology, University of Illinois at Chicago College of Medicine, Chicago, IL 60612, United States
| | - Irina A Buhimschi
- Department of Obstetrics & Gynecology, University of Illinois at Chicago College of Medicine, Chicago, IL 60612, United States
| | - Jonah Fleisher
- Department of Obstetrics & Gynecology, University of Illinois at Chicago College of Medicine, Chicago, IL 60612, United States.
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Derivation and external validation of a risk score for predicting HIV-associated tuberculosis to support case finding and preventive therapy scale-up: A cohort study. PLoS Med 2021; 18:e1003739. [PMID: 34491987 PMCID: PMC8454974 DOI: 10.1371/journal.pmed.1003739] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 09/21/2021] [Accepted: 07/21/2021] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Among people living with HIV (PLHIV), more flexible and sensitive tuberculosis (TB) screening tools capable of detecting both symptomatic and subclinical active TB are needed to (1) reduce morbidity and mortality from undiagnosed TB; (2) facilitate scale-up of tuberculosis preventive therapy (TPT) while reducing inappropriate prescription of TPT to PLHIV with subclinical active TB; and (3) allow for differentiated HIV-TB care. METHODS AND FINDINGS We used Botswana XPRES trial data for adult HIV clinic enrollees collected during 2012 to 2015 to develop a parsimonious multivariable prognostic model for active prevalent TB using both logistic regression and random forest machine learning approaches. A clinical score was derived by rescaling final model coefficients. The clinical score was developed using southern Botswana XPRES data and its accuracy validated internally, using northern Botswana data, and externally using 3 diverse cohorts of antiretroviral therapy (ART)-naive and ART-experienced PLHIV enrolled in XPHACTOR, TB Fast Track (TBFT), and Gugulethu studies from South Africa (SA). Predictive accuracy of the clinical score was compared with the World Health Organization (WHO) 4-symptom TB screen. Among 5,418 XPRES enrollees, 2,771 were included in the derivation dataset; 67% were female, median age was 34 years, median CD4 was 240 cells/μL, 189 (7%) had undiagnosed prevalent TB, and characteristics were similar between internal derivation and validation datasets. Among XPHACTOR, TBFT, and Gugulethu cohorts, median CD4 was 400, 73, and 167 cells/μL, and prevalence of TB was 5%, 10%, and 18%, respectively. Factors predictive of TB in the derivation dataset and selected for the clinical score included male sex (1 point), ≥1 WHO TB symptom (7 points), smoking history (1 point), temperature >37.5°C (6 points), body mass index (BMI) <18.5kg/m2 (2 points), and severe anemia (hemoglobin <8g/dL) (3 points). Sensitivity using WHO 4-symptom TB screen was 73%, 80%, 94%, and 94% in XPRES, XPHACTOR, TBFT, and Gugulethu cohorts, respectively, but increased to 88%, 87%, 97%, and 97%, when a clinical score of ≥2 was used. Negative predictive value (NPV) also increased 1%, 0.3%, 1.6%, and 1.7% in XPRES, XPHACTOR, TBFT, and Gugulethu cohorts, respectively, when the clinical score of ≥2 replaced WHO 4-symptom TB screen. Categorizing risk scores into low (<2), moderate (2 to 10), and high-risk categories (>10) yielded TB prevalence of 1%, 1%, 2%, and 6% in the lowest risk group and 33%, 22%, 26%, and 32% in the highest risk group for XPRES, XPHACTOR, TBFT, and Gugulethu cohorts, respectively. At clinical score ≥2, the number needed to screen (NNS) ranged from 5.0 in Gugulethu to 11.0 in XPHACTOR. Limitations include that the risk score has not been validated in resource-rich settings and needs further evaluation and validation in contemporary cohorts in Africa and other resource-constrained settings. CONCLUSIONS The simple and feasible clinical score allowed for prioritization of sensitivity and NPV, which could facilitate reductions in mortality from undiagnosed TB and safer administration of TPT during proposed global scale-up efforts. Differentiation of risk by clinical score cutoff allows flexibility in designing differentiated HIV-TB care to maximize impact of available resources.
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Wisanuvej K, Boonyawat K, Savetamornkul C, Virapongsiri S, Krongvorakul J, Sungkanuparph S, Phuphuakrat A. Comparison between blood hemoglobin concentration determined by point-of-care device and complete blood count in adult patients with dengue. PLoS Negl Trop Dis 2021; 15:e0009692. [PMID: 34398882 PMCID: PMC8389841 DOI: 10.1371/journal.pntd.0009692] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 08/26/2021] [Accepted: 07/30/2021] [Indexed: 12/03/2022] Open
Abstract
Background Hematocrit measurement has been an indispensable tool for monitoring plasma leakage and bleeding in dengue patients. However, hematocrit measurement by automated methods is hampered by frequent venipunctures. Utility of point-of-care hemoglobin (POC-Hb) test for monitoring dengue patients has not been established. We evaluated the relationship between hemoglobin measured by POC-Hb testing and hematocrit measured by the automated method in adult dengue patients. Methodology and principal findings Adult dengue patients were recruited at two university hospitals in Thailand from October 2019 to December 2020. POC-Hb test was performed using capillary blood simultaneously with venipuncture to obtain whole blood for an automated complete blood count (CBC) analysis. The correlation of hemoglobin and hematocrit measurement was evaluated. A total of 44 dengue patients were enrolled. Twenty-nine patients (65.9%) were female, with a median age of 31 years (interquartile range 22–41). Of the enrolled patients, 30 (68.2%), 11 (25.0%), and 3 (6.8%) were classified as dengue without warning signs, with warning signs, and severe dengue, respectively. Seven patients (15.9%) had hemoconcentration, and five patients (11.3%) had bleeding. A total of 216 pairs of POC-Hb and CBC were evaluated. A significant positive correlation was observed between hemoglobin measured by POC-Hb testing and hematocrit measured by an automated CBC (r = 0.869, p <0.001). Bland-Altman analysis between hemoglobin measured by POC-Hb testing and an automated CBC showed a bias of -0.43 (95% limit of agreement of -1.81 and 0.95). Using the cutoff of POC-Hb ≥20% as a criteria for hemoconcentration, the sensitivity and specificity of hemoconcentration detected by POC-Hb device were 71.4% and 100.0%, respectively. Conclusions Hemoglobin measurement by POC-Hb testing has a strong correlation with hematocrit in adult patients with dengue fever. However, the sensitivity in detecting hemoconcentration is fair. The adjunct use of capillary POC-Hb testing can decrease the frequency of venipuncture. Further study in children is encouraged. The natural history of dengue has the unique characteristic of plasma leakage that results in hemoconcentration as well as vasculopathy and thrombocytopenia that result in bleeding. Therefore, hematocrit monitoring is a crucial tool to guide management in dengue patients. Microhematocrit adjunct with a complete blood count (CBC) to monitor dengue patients were traditionally performed to decrease the frequency of venipuncture. However, microhematocrit is currently less preferred to the point-of-care hemoglobin monitoring tools to measure red cells in other diseases. There has been no study investigating the feasibility of using point-of-care hemoglobin (POC-Hb) to monitor dengue patients. We studied the correlation of hemoglobin measured by POC-Hb testing and hematocrit measured by an automated CBC in adult dengue patients. We were able to show a strong positive correlation between the two measurements (r = 0.869, p <0.001). Using the rise of POC-Hb value of ≥20% above the convalescent value as the criteria for detecting hemoconcentration by POC-Hb testing, measurement of hemoglobin using POC-Hb has a sensitivity of 71.4% for detecting hemoconcentration compared to the traditional hematocrit criteria. Our findings support the use of POC-Hb testing adjunct with a complete blood count to guide fluid management in dengue patients.
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Affiliation(s)
- Kantasit Wisanuvej
- Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Kochawan Boonyawat
- Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Chutchaiwat Savetamornkul
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Samut Prakan, Thailand
| | - Sirapong Virapongsiri
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Samut Prakan, Thailand
| | - Jatupon Krongvorakul
- Department of Pathology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Somnuek Sungkanuparph
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Samut Prakan, Thailand
| | - Angsana Phuphuakrat
- Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
- * E-mail:
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Addo OY, Yu EX, Williams AM, Young MF, Sharma AJ, Mei Z, Kassebaum NJ, Jefferds MED, Suchdev PS. Evaluation of Hemoglobin Cutoff Levels to Define Anemia Among Healthy Individuals. JAMA Netw Open 2021; 4:e2119123. [PMID: 34357395 PMCID: PMC8346941 DOI: 10.1001/jamanetworkopen.2021.19123] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 05/27/2021] [Indexed: 11/14/2022] Open
Abstract
Importance Anemia, defined as low hemoglobin (Hb) concentration insufficient to meet an individual's physiological needs, is the most common blood condition worldwide. Objective To evaluate the current World Health Organization (WHO) Hb cutoffs for defining anemia among persons who are apparently healthy and to assess threshold validity with a biomarker of tissue iron deficiency and physiological indicator of erythropoiesis (soluble transferrin receptor [sTfR]) using multinational data. Design, Setting, and Participants In this cross-sectional study, data were collected and evaluated from 30 household, population-based nutrition surveys of preschool children aged 6 to 59 months and nonpregnant women aged 15 to 49 years during 2005 to 2016 across 25 countries. Data analysis was performed from March 2020 to April 2021. Exposure Anemia defined according to WHO Hb cutoffs. Main Outcomes and Measures To define the healthy population, persons with iron deficiency (ferritin <12 ng/mL for children or <15 ng/mL for women), vitamin A deficiency (retinol-binding protein or retinol <20.1 μg/dL), inflammation (C-reactive protein >0.5 mg/dL or α-1-acid glycoprotein >1 g/L), or known malaria were excluded. Survey-specific, pooled Hb fifth percentile cutoffs were estimated. Among individuals with Hb and sTfR data, Hb-for-sTfR curve analysis was conducted to identify Hb inflection points that reflect tissue iron deficiency and increased erythropoiesis induced by anemia. Results A total of 79 950 individuals were included in the original surveys. The final healthy sample was 13 445 children (39.9% of the original sample of 33 699 children; 6750 boys [50.2%]; mean [SD] age 32.9 [16.0] months) and 25 880 women (56.0% of the original sample of 46 251 women; mean [SD] age, 31.0 [9.5] years). Survey-specific Hb fifth percentile among children ranged from 7.90 g/dL (95% CI, 7.54-8.26 g/dL in Pakistan) to 11.23 g/dL (95% CI, 11.14-11.33 g/dL in the US), and among women from 8.83 g/dL (95% CI, 7.77-9.88 g/dL in Gujarat, India) to 12.09 g/dL (95% CI, 12.00-12.17 g/dL in the US). Intersurvey variance around the Hb fifth percentile was low (3.5% for women and 3.6% for children). Pooled fifth percentile estimates were 9.65 g/dL (95% CI, 9.26-10.04 g/dL) for children and 10.81 g/dL (95% CI, 10.35-11.27 g/dL) for women. The Hb-for-sTfR curve demonstrated curvilinear associations with sTfR inflection points occurring at Hb of 9.61 g/dL (95% CI, 9.55-9.67 g/dL) among children and 11.01 g/dL (95% CI, 10.95-11.09 g/dL) among women. Conclusions and Relevance Current WHO cutoffs to define anemia are higher than the pooled fifth percentile of Hb among persons who are outwardly healthy and from nearly all survey-specific estimates. The lower proposed Hb cutoffs are statistically significant but also reflect compensatory increased erythropoiesis. More studies based on clinical outcomes could further confirm the validity of these Hb cutoffs for anemia.
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Affiliation(s)
- O. Yaw Addo
- Nutrition Branch, International Micronutrient Malnutrition Prevention and Control Program Unit, Centers for Disease Control and Prevention, Atlanta, Georgia
- Emory University Rollins School of Public Health, Atlanta, Georgia
| | - Emma X. Yu
- Emory University Rollins School of Public Health, Atlanta, Georgia
| | - Anne M. Williams
- Nutrition Branch, International Micronutrient Malnutrition Prevention and Control Program Unit, Centers for Disease Control and Prevention, Atlanta, Georgia
- Emory University Rollins School of Public Health, Atlanta, Georgia
- McKing Consulting Corporation, Atlanta, Georgia
| | | | - Andrea J. Sharma
- Nutrition Branch, International Micronutrient Malnutrition Prevention and Control Program Unit, Centers for Disease Control and Prevention, Atlanta, Georgia
- USPHS Commissioned Corps, Atlanta, Georgia
| | - Zuguo Mei
- Nutrition Branch, International Micronutrient Malnutrition Prevention and Control Program Unit, Centers for Disease Control and Prevention, Atlanta, Georgia
| | | | - Maria Elena D. Jefferds
- Nutrition Branch, International Micronutrient Malnutrition Prevention and Control Program Unit, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Parminder S. Suchdev
- Nutrition Branch, International Micronutrient Malnutrition Prevention and Control Program Unit, Centers for Disease Control and Prevention, Atlanta, Georgia
- Emory University Rollins School of Public Health, Atlanta, Georgia
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Mohammed H, Marquis GS, Aboud F, Bougma K, Samuel A. TSH Mediated the Effect of Iodized Salt on Child Cognition in a Randomized Clinical Trial. Nutr Metab Insights 2021; 14:11786388211025352. [PMID: 34211279 PMCID: PMC8216409 DOI: 10.1177/11786388211025352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 05/19/2021] [Indexed: 11/26/2022] Open
Abstract
Objectives: This study examines the hormonal mediators of the effect of iodized salt in pregnancy on child cognition. Methods: Sixty districts across 6 zones in the Amhara region of Ethiopia were randomly allocated to a control or intervention arm of early market access to iodized salt. Twenty-two villages per arm were randomly selected for this sub-study. A total of 1220 pregnant women who conceived after the intervention began were enrolled and assessed for their iodine and iron status. Data were collected once on the household socio-demographic status and iodized salt use, and maternal urinary iodine during pregnancy. Then, infants’ diet, urinary iodine level, cognitive development (Bayley III), serum hormonal levels, iron status, and inflammation markers were measured between 2 and 13 months of age. Results: The median maternal urinary iodine concentration was adequate and significantly higher in the intervention mothers than that of the controls (163 vs 121 µg/L, P < .0001). Intervention children compared to the control children had lower thyroid-stimulating hormone (TSH) (mean: 2.4 ± 1.0 µIU/mL vs 2.7 ± 1.0 µIU/mL, effect size = 0.18, P < .01) and thyroglobulin (Tg) (41.6 ± 1.0 ng/mL vs 45.1 ± 1.0 ng/mL, effect size = 0.14, P < .05). There was an interaction between the intervention and iron stores such that cognition was higher with iron (effect size = 0.28, 100 vs 94 IQ points). TSH was a partial mediator (12%) of the effect of the intervention on child cognition (Sobel z-score = 2.1 ± 0.06, P < .05). Conclusion: TSH partially mediated the effect of the iodized salt intervention on child cognition.
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Affiliation(s)
- Husein Mohammed
- Department of Nutrition and Food Science, University of Ghana, Legon, Ghana
| | - Grace S Marquis
- School of Human Nutrition, McGill University, Montreal, QC, Canada
| | - Frances Aboud
- Department of Psychology, McGill University, Montreal, QC, Canada
| | | | - Aregash Samuel
- Food Sciences and Nutrition Research Directorate, Ethiopian Public Health Institute, Addis Ababa, Ethiopia
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Ilboudo B, Savadogo LGB, Traoré I, Meda CZ, Kinda M, Sombié I, Dramaix-Wilmet M, Donnen P. Effect of Personalized Support at Home on the Prevalence of Anemia in Pregnancy in Burkina Faso: A Cluster Randomized Trial. Am J Trop Med Hyg 2021; 105:207-216. [PMID: 34097646 DOI: 10.4269/ajtmh.20-1043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 03/01/2021] [Indexed: 11/07/2022] Open
Abstract
Burkina Faso has high prevalence of anemia in pregnancy (hemoglobin < 11 g/dL), despite the implementation of the WHO recommended guidelines. This study aimed to test the effects of personalized support for pregnant women at home on the trend of anemia prevalence in pregnancy. A cluster randomized trial was conducted from January 2015 to August 2016 at Sindou health district in Burkina Faso. Data were collected from 617 women in their first or second trimester of pregnancy, including 440 and 177 women in the intervention and control groups, respectively. The intervention consisted of a monthly home-based visit to the pregnant woman, focusing on nutritional counseling and pregnancy management, alongside an improvement antenatal visit quality. Compared with the prevalence of anemia in pregnancy in the control group [64.0% (95% confidence interval [CI]: 52.1-74.4%)], that of the intervention group was significantly lower from the fifth home visit onward [36.8% (95% CI: 32.1-41.8%)] (P < 0.001). The adjusted difference-in-differences in anemia prevalence between the two groups was -19.8% (95% CI: -30.2% to -9.4%) for women who received more than four home visits (P < 0.001). The corresponding difference in hemoglobin levels was 0.644 g/dL (95% CI: 0.309-0.167; P < 0.001). Personalized support for pregnant women at home, combined with appropriate antenatal care, can significantly reduce anemia prevalence during pregnancy in rural Burkina Faso.
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Affiliation(s)
- Bernard Ilboudo
- 1Centre Muraz, Institut National de Santé Publique, Bobo-Dioulasso, Burkina Faso.,3Ecole de Santé Publique, Université Libre de Bruxelles, Brussels, Belgium
| | - Léon G B Savadogo
- 2Institut Supérieur des Sciences de la Santé, Université Nazi Boni, Bobo-Dioulasso, Burkina Faso
| | - Isidore Traoré
- 1Centre Muraz, Institut National de Santé Publique, Bobo-Dioulasso, Burkina Faso.,2Institut Supérieur des Sciences de la Santé, Université Nazi Boni, Bobo-Dioulasso, Burkina Faso
| | - Clément Z Meda
- 2Institut Supérieur des Sciences de la Santé, Université Nazi Boni, Bobo-Dioulasso, Burkina Faso
| | - Maurice Kinda
- 2Institut Supérieur des Sciences de la Santé, Université Nazi Boni, Bobo-Dioulasso, Burkina Faso
| | - Issiaka Sombié
- 2Institut Supérieur des Sciences de la Santé, Université Nazi Boni, Bobo-Dioulasso, Burkina Faso
| | | | - Philippe Donnen
- 3Ecole de Santé Publique, Université Libre de Bruxelles, Brussels, Belgium
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An R, Huang Y, Man Y, Valentine RW, Kucukal E, Goreke U, Sekyonda Z, Piccone C, Owusu-Ansah A, Ahuja S, Little JA, Gurkan UA. Emerging point-of-care technologies for anemia detection. LAB ON A CHIP 2021; 21:1843-1865. [PMID: 33881041 PMCID: PMC8875318 DOI: 10.1039/d0lc01235a] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Anemia, characterized by low blood hemoglobin level, affects about 25% of the world's population with the heaviest burden borne by women and children. Anemia leads to impaired cognitive development in children, as well as high morbidity and early mortality among sufferers. Anemia can be caused by nutritional deficiencies, oncologic treatments and diseases, and infections such as malaria, as well as inherited hemoglobin or red cell disorders. Effective treatments are available for anemia upon early detection and the treatment method is highly dependent on the cause of anemia. There is a need for point-of-care (POC) screening, early diagnosis, and monitoring of anemia, which is currently not widely accessible due to technical challenges and cost, especially in low- and middle-income countries where anemia is most prevalent. This review first introduces the evolution of anemia detection methods followed by their implementation in current commercially available POC anemia diagnostic devices. Then, emerging POC anemia detection technologies leveraging new methods are reviewed. Finally, we highlight the future trends of integrating anemia detection with the diagnosis of relevant underlying disorders to accurately identify specific root causes and to facilitate personalized treatment and care.
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Affiliation(s)
- Ran An
- Mechanical and Aerospace Engineering Department, Case Western Reserve University, 10900 Euclid Ave., Glennan Building, Cleveland, OH 44106, USA.
| | - Yuning Huang
- Mechanical and Aerospace Engineering Department, Case Western Reserve University, 10900 Euclid Ave., Glennan Building, Cleveland, OH 44106, USA.
| | - Yuncheng Man
- Mechanical and Aerospace Engineering Department, Case Western Reserve University, 10900 Euclid Ave., Glennan Building, Cleveland, OH 44106, USA.
| | - Russell W Valentine
- Mechanical and Aerospace Engineering Department, Case Western Reserve University, 10900 Euclid Ave., Glennan Building, Cleveland, OH 44106, USA.
| | - Erdem Kucukal
- Mechanical and Aerospace Engineering Department, Case Western Reserve University, 10900 Euclid Ave., Glennan Building, Cleveland, OH 44106, USA.
| | - Utku Goreke
- Mechanical and Aerospace Engineering Department, Case Western Reserve University, 10900 Euclid Ave., Glennan Building, Cleveland, OH 44106, USA.
| | - Zoe Sekyonda
- Biomedical Engineering Department, Case Western Reserve University, Cleveland, OH, USA
| | - Connie Piccone
- Department of Pediatric Hematology, Carle Foundation Hospital, Urbana, IL, USA
| | - Amma Owusu-Ansah
- Department of Pediatrics, Division of Hematology and Oncology, University Hospitals Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland, OH, USA
| | - Sanjay Ahuja
- Department of Pediatrics, Division of Hematology and Oncology, University Hospitals Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland, OH, USA
| | - Jane A Little
- Division of Hematology & UNC Blood Research Center, Department of Medicine, University of North Carolina, Chapel Hill, NC, USA
| | - Umut A Gurkan
- Mechanical and Aerospace Engineering Department, Case Western Reserve University, 10900 Euclid Ave., Glennan Building, Cleveland, OH 44106, USA. and Biomedical Engineering Department, Case Western Reserve University, Cleveland, OH, USA and Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH, USA
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Sedlander E, Long MW, Bingenheimer JB, Rimal RN. Examining intentions to take iron supplements to inform a behavioral intervention: The Reduction in Anemia through Normative Innovations (RANI) project. PLoS One 2021; 16:e0249646. [PMID: 33974640 PMCID: PMC8112683 DOI: 10.1371/journal.pone.0249646] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 03/23/2021] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND More than half of women of reproductive age in India have anemia. Over the last decade, India has made some progress towards reducing anemia in pregnant women, but non-pregnant women, who make up the largest sub group of people with anemia, are largely disregarded. OBJECTIVES The objective of this paper is to examine intentions to take iron supplements and factors associated with intentions to inform a social norms-based behavioral intervention to increase uptake of iron supplements and reduce anemia in Odisha, India. METHODS We collected data from 3,914 randomly sampled non-pregnant women of reproductive age in 81 villages. We conducted a survey and took hemocue (anemia level) readings from each participant. We analyzed data using linear regression models beginning with demographics and social norms and adding other factors such as self-efficacy to take iron supplements, anemia risk perception, and knowledge about anemia in a subsequent model. RESULTS 63% of women in our sample were anemic but less than 5% knew they were anemic. Despite national guidelines that all women of reproductive age should take weekly iron supplements to prevent anemia, less than 3% of women in our sample were currently taking them. While actual use was low, intentions were rather high. On a five point Likert scale where higher numbers meant more intentions to take supplements, average intentions were above the midpoint (M = 3.48, SD = 1.27) and intentions and iron supplement use were significantly correlated (r = .10, p < .001). Both injunctive norms and collective norms were associated with intentions to take iron supplements but descriptive norms were not. Other significant factors included age, breastfeeding, knowledge, self-efficacy, and outcome expectations. The final model accounted for 74% of the variance in iron supplement intentions. CONCLUSIONS In this context, where the actual behavior is low but intentions to enact the behavior are high, starting an intervention with injunctive norms messaging (expectations around the behavior) and self-efficacy to enact the behavior is the step we recommend based on our results. As an intervention unfolds and iron supplement use increases, descriptive norms messaging (that people are indeed taking iron supplements) may add value.
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Affiliation(s)
- Erica Sedlander
- Department of Prevention and Community Health, Milken Institute School of Public Health, The George Washington University, Washington, DC, United States of America
| | - Michael W. Long
- Department of Prevention and Community Health, Milken Institute School of Public Health, The George Washington University, Washington, DC, United States of America
| | - Jeffrey B. Bingenheimer
- Department of Prevention and Community Health, Milken Institute School of Public Health, The George Washington University, Washington, DC, United States of America
| | - Rajiv N. Rimal
- Department of Prevention and Community Health, Milken Institute School of Public Health, The George Washington University, Washington, DC, United States of America
- Department of Health Behavior and Society, Johns Hopkins University, Baltimore, Maryland, United States of America
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Roshania RP, Mehta RV, Shete A, Bingewar R, Kulkarni S, Mahajan A, Miller G, Tarozzi A, Martorell R. Agreement between dried blood spots and HemoCue in Tamil Nadu, India. Sci Rep 2021; 11:9285. [PMID: 33927229 PMCID: PMC8085154 DOI: 10.1038/s41598-021-88425-y] [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: 07/23/2020] [Accepted: 04/08/2021] [Indexed: 12/03/2022] Open
Abstract
India retains the world's largest burden of anemia despite decades of economic growth and anemia prevention programming. Accurate screening and estimates of anemia prevalence are critical for successful anemia control. Evidence is mixed on the performance of HemoCue, a point-of-care testing device most widely used for large-scale surveys. The use of dried blood spots (DBS) to assess hemoglobin (Hb) concentration is a potential alternative, particularly in field settings. The objective of this study is to assess Hb measurement agreement between capillary HemoCue and DBS among two age groups, children 6-59 months and females age 12-40 years. We analyzed data from the baseline round of a cluster randomized rice fortification intervention in Cuddalore district of Tamil Nadu, India. Capillary blood was collected from a subset of participants for Hb assessment by HemoCue 301 and DBS methods. We calculated Lin's concordance correlation coefficient, and tested bias by conducting paired t-tests of Hb concentration. Independence of the bias and Hb magnitude was examined visually using Bland-Altman plots and statistically tested by Pearson's correlation. We assessed differences in anemia classification using McNemar's test of marginal homogeneity. Concordance between HemoCue and DBS Hb measures was moderate for both children 6-59 months (ρc = 0.67; 95% CI 0.65, 0.71) and females 12-40 years (ρc = 0.67: 95% CI 0.64, 0.69). HemoCue measures were on average 0.06 g/dL higher than DBS for children (95% CI 0.002, 0.12; p = 0.043) and 0.29 g/dL lower than DBS for females (95% CI - 0.34, - 0.23; p < 0.0001). 50% and 56% of children were classified as anemic according to HemoCue and DBS, respectively (p < 0.0001). 55% and 47% of females were classified as anemic according to HemoCue and DBS, respectively (p < 0.0001). There is moderate statistical agreement of Hb concentration between HemoCue and DBS for both age groups. The choice of Hb assessment method has important implications for individual anemia diagnosis and population prevalence estimates. Further research is required to understand factors that influence the accuracy and reliability of DBS as a methodology for Hb assessment.
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Affiliation(s)
- Reshma P Roshania
- Nutrition and Health Sciences, Laney Graduate School, Emory University, Atlanta, GA, USA
| | - Rukshan V Mehta
- Nutrition and Health Sciences, Laney Graduate School, Emory University, Atlanta, GA, USA
| | - Ashwini Shete
- National AIDS Research Institute, Indian Council of Medical Research, Pune, Maharashtra, India
| | - Rohini Bingewar
- National AIDS Research Institute, Indian Council of Medical Research, Pune, Maharashtra, India
| | - Sangeeta Kulkarni
- National AIDS Research Institute, Indian Council of Medical Research, Pune, Maharashtra, India
| | - Aprajit Mahajan
- Department of Agricultural and Resource Economics, University of California Berkeley, Berkeley, CA, USA
| | - Grant Miller
- Center for Health Policy/Center for Primary Care and Outcomes Research, School of Medicine, Stanford, CA, USA
| | - Alessandro Tarozzi
- Department of Economics and Business, Universitat Pompeu Fabra and Barcelona GSE, Barcelona, Spain
| | - Reynaldo Martorell
- Nutrition and Health Sciences, Laney Graduate School, Emory University, Atlanta, GA, USA.
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, 1518 Clifton Road, NE, CNR 5005, Mailstop #1518-002-7BB, Atlanta, GA, 30322, USA.
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DiPietro L, Bingenheimer J, Talegawkar SA, Sedlander E, Yilma H, Pradhan P, Rimal R. Determinants of work capacity (predicted VO 2max) in non-pregnant women of reproductive age living in rural India. BMC Public Health 2021; 21:735. [PMID: 33858397 PMCID: PMC8051129 DOI: 10.1186/s12889-021-10785-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 04/07/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The negative impact of anemia on work capacity has been studied extensively in male and female workers; however, the simultaneous contributions of confounding variables such as physical activity, as well as other behavioral and sociodemographic characteristics have not been considered. The purpose of this study was to examine cross-sectionally the multivariable correlates of work capacity in non-pregnant women (n = 330) living in rural India. METHODS The Reduction in Anemia through Normative Innovations (RANI) Project is a norms-based, clustered randomized controlled trial to reduce anemia among women (15-49 years) living in Odisha, India between 2018 and 2021. For the larger trial, 89 clusters of villages were randomized into treatment and control groups on a 1:1 basis. Women (2055/group) living in 15 selected clusters (40-41 villages) were then randomly selected for data collection. The sampling design also randomly-generated a subset (n = 375) of non-pregnant participants who performed a modified Queen's College Step Test (QCST) and who wore an activity monitor for 3 days. Predicted work capacity (VO2max) was determined using the QCST. Levels (h/day) of daily reclining, sitting, standing, walking (steps/day), and energy expenditure (MET∙h/day) were determined using an ActivPAL accelerometer. Hemoglobin concentrations (g/dL) were determined using a HemoCue photometer. Predetermined hierarchical (non-multilevel) regression models tested the independent associations between the primary study variables of interest (physical activity, hemoglobin concentrations) and predicted VO2max, while adjusting for age, body mass index (BMI: kg/m2), education, parity, and dietary diversity score. RESULTS Approximately 61% of the participants had anemia (Hb < 12 g/dL). Age2 (β = - 0.01; 95% CI: - 0.01, 0.00), BMI (β = - 0.19; 95% CI:-0.28, - 0.09), educational attainment (β = - 1.35; 95% CI: - 2.34, - 0.36), and MET∙h/day (β = 0.19; 95% CI: 0.00, 0.38) were significant and independent determinants of work capacity. Hemoglobin concentration was marginally associated with work capacity in the presence of the other covariables (β = 0.22; 95% CI:-0.02, 0.47). CONCLUSIONS Our data indicate that factors other than anemia are important correlates of work capacity and should be considered when promoting the health and economic capacity of rural Indian women. TRIAL REGISTRATION Clinical Trial Registry- India (CTRI) http://ctri.nic.in/Clinicaltrials/pmaindet2.php?trialid=26285&EncHid=&userName=CTRI/2018/10/016186 on 29 October 2018.
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Affiliation(s)
- Loretta DiPietro
- Departments of Exercise & Nutrition Sciences, Milken Institute School of Public Health, The George Washington University, Washington, DC, USA.
| | - Jeffrey Bingenheimer
- Departments of Prevention & Community Health, Milken Institute School of Public Health, The George Washington University, Washington, DC, USA
| | - Sameera A Talegawkar
- Departments of Exercise & Nutrition Sciences, Milken Institute School of Public Health, The George Washington University, Washington, DC, USA
| | - Erica Sedlander
- Departments of Prevention & Community Health, Milken Institute School of Public Health, The George Washington University, Washington, DC, USA
| | - Hagere Yilma
- Departments of Prevention & Community Health, Milken Institute School of Public Health, The George Washington University, Washington, DC, USA
| | | | - Rajiv Rimal
- Department of Health, Behavior & Society, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
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Ilboudo B, Traoré I, Méda CZ, Hien A, Kinda M, Dramaix-Wilmet M, Savadogo GBL, Donnen P. Prevalence and factors associated with anaemia in pregnant women in Cascades Region of Burkina Faso in 2012. Pan Afr Med J 2021; 38:361. [PMID: 34367440 PMCID: PMC8308920 DOI: 10.11604/pamj.2021.38.361.26612] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 04/05/2021] [Indexed: 11/20/2022] Open
Abstract
Introduction anaemia in pregnancy is a public health concern in Burkina Faso. This study aims at identifying the factors associated with the prevalence of anaemia in pregnant women at a regional level in Burkina Faso. Methods we conducted a cross-sectional study in the region called “Cascades”, located at the Western part of Burkina Faso. The study population included all pregnant women who attended antenatal care clinics in all public peripheral health facilities (districts) between May and June 2012 and agreed to participate in the study. They provided blood sample from which we measured the haemoglobin concentration using the Hemocue® system. The factors associated with anaemia in the study population were identified through multiple logistic regressions. Results the prevalence (95% CI) of anaemia in pregnancy in the Cascades region was 58.9% (56.6% - 61.2%). Anaemia in pregnancy was more common in district of Banfora (OR = 1.40; 95% CI: 1.07-1.83), among housewives (OR = 2.96; 95% CI: 1.10-8.0), in the Mossi ethnic group (OR = 1.39; 95% CI: 1.04-1.85) and among the wives of farmers and artisans (OR = 2.55; 95% CI: 1.59-4.07). Anaemia in pregnancy was less frequent among women who drank local beer (OR = 0.68; 95% CI: 0.49-0.94). Conclusion the prevalence of anaemia in pregnancy is high in Burkina Faso. Improving women's income level may contribute to reduce it. Further studies are needed to elucidate the link between the consumption of local beer, the local diet practices and anaemia in pregnant women.
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Affiliation(s)
- Bernard Ilboudo
- Institut Supérieur des Sciences de la Santé, Université Nazi Boni, Bobo-Dioulasso, Burkina Faso.,Institut National de Santé Publique, Ouagadougou, Burkina Faso.,École de Santé Publique, Université Libre de Bruxelles, Bruxelles, Belgique
| | - Isidore Traoré
- Institut Supérieur des Sciences de la Santé, Université Nazi Boni, Bobo-Dioulasso, Burkina Faso.,Institut National de Santé Publique, Ouagadougou, Burkina Faso
| | - Clément Zemlé Méda
- Institut Supérieur des Sciences de la Santé, Université Nazi Boni, Bobo-Dioulasso, Burkina Faso
| | - Alain Hien
- Institut Supérieur des Sciences de la Santé, Université Nazi Boni, Bobo-Dioulasso, Burkina Faso.,Institut National de Santé Publique, Ouagadougou, Burkina Faso
| | - Maurice Kinda
- Institut Supérieur des Sciences de la Santé, Université Nazi Boni, Bobo-Dioulasso, Burkina Faso
| | | | | | - Philippe Donnen
- École de Santé Publique, Université Libre de Bruxelles, Bruxelles, Belgique
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Alarcón-Guevara S, Peñafiel-Sam J, Chang-Cabanillas S, Pereyra-Elías R. Maternal depressive symptoms are not associated with child anaemia: A cross-sectional population study in Peru, 2015. Child Care Health Dev 2021; 47:228-242. [PMID: 33150967 DOI: 10.1111/cch.12827] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 10/20/2020] [Accepted: 10/28/2020] [Indexed: 12/17/2022]
Abstract
INTRODUCTION Approximately, one in three Peruvian children aged 6 to 59 months old have anaemia. Maternal depression, which may be disabling and affect the proper care of children, is associated with chronic malnutrition in their offspring. Therefore, the aim of this study is to evaluate if there is an association between depressive symptoms of mothers with the presence of anaemia in their children. METHODS Analytical cross-sectional study of the Peruvian Demographic Health Survey 2015, which is nationally representative. Depressive symptoms were measured with the Patient Health Questionnaire-9 (PHQ-9) using a score of 10 as cut-off. The presence of anaemia was measured using HemoCue® and was considered positive when the haemoglobin was less than 11 g/dl. RESULTS Crude and adjusted prevalence ratios (PR and aPR) were calculated with 95% confidence interval (CI), using generalized linear models of the Poisson family. We analysed 6683 mother-child binomials. The prevalence of anaemia in the children and depressive symptoms in women were 28.7% (95% CI: 27.3-30.2) and 6.9% (95% CI: 6.1-7.9), respectively. We found no statistically significant association between these variables in the bivariable analysis or in the different multivariable models (aPR: 1.05, 95% CI: 0.85-1.30). The sample did not have moderate or severe malnutrition. CONCLUSIONS There is no statistically significant difference between the prevalence of anaemia in children of mothers with or without depressive symptoms. We recommend continuing research in this field to determine more associate factors to childhood anaemia in order to improve primary prevention interventions. Ideally, conducting longitudinal studies such as prospectives cohorts to determine risk factors should be done.
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Affiliation(s)
| | | | | | - Reneé Pereyra-Elías
- School of Medicine, Universidad Peruana de Ciencias Aplicadas, Lima, Peru.,National Perinatal Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
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Mehta U, Dey S, Chowdhury S, Ghosh S, Hart JE, Kurpad A. The Association Between Ambient PM 2.5 Exposure and Anemia Outcomes Among Children Under Five Years of Age in India. Environ Epidemiol 2021; 5:e125. [PMID: 33778358 PMCID: PMC7939416 DOI: 10.1097/ee9.0000000000000125] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 11/30/2020] [Indexed: 12/16/2022] Open
Abstract
Anemia is highly prevalent in India, especially in children. Exposure to ambient fine particulate matter (PM2.5) is a potential risk factor for anemia via. systemic inflammation. Using health data from the National Family and Health Survey 2015-2016, we examined the association between ambient PM2.5 exposure and anemia in children under five across India through district-level ecological and individual-level analyses. METHODS The ecological analysis assessed average hemoglobin levels and anemia prevalence (hemoglobin < 11 g/dL considered anemic) by district using multiple linear regression models. The individual-level analysis assessed average individual hemoglobin level and anemia status (yes/no) using generalized linear mixed models to account for clustering by district. Ambient PM2.5 exposure data were derived from the Multiangle Imaging SpectroRadiometer (MISR) level 2 aerosol optical depth (AOD) data and averaged from birth date to date of interview. RESULTS The district-level ecological analysis found that, for every 10 μg m-3 increase in ambient PM2.5 exposure, average anemia prevalence increased by 1.90% (95% CI = 1.43, 2.36) and average hemoglobin decreased by 0.07 g/dL (95% CI = 0.09, 0.05). At the individual level, for every 10 μg m-3 increase in ambient PM2.5 exposure, average hemoglobin decreased by 0.14 g/dL (95% CI = 0.12, 0.16). The odds ratio associated with a 10-μg m-3 increase in ambient PM2.5 exposure was 1.09 (95% CI = 1.06, 1.11). There was evidence of effect modification by wealth index, maternal anemia status, and child BMI. CONCLUSION Our results suggest that ambient PM2.5 exposure could be linked to anemia in Indian children, although additional research on the underlying biologic mechanisms is needed. Future studies on this association should specifically consider interactions with dietary iron deficiency, maternal anemia status, and child BMI.Keywords: Anemia; Children; Ambient PM2.5 exposure; India; Association.
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Affiliation(s)
- Unnati Mehta
- Centre for Atmospheric Sciences, Indian Institute of Technology Delhi, New Delhi, India
- Harvard University T. H. Chan School of Public Health, Boston, Massachusetts
| | - Sagnik Dey
- Centre for Atmospheric Sciences, Indian Institute of Technology Delhi, New Delhi, India
- Centre of Excellence for Research on Clean Air, IIT Delhi, New Delhi, India
- School of Public Policy, IIT Delhi, New Delhi, India
| | - Sourangsu Chowdhury
- Centre for Atmospheric Sciences, Indian Institute of Technology Delhi, New Delhi, India
| | - Santu Ghosh
- St. John’s Medical College, Bengaluru, India
| | - Jaime E Hart
- Harvard University T. H. Chan School of Public Health, Boston, Massachusetts
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
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Epari V, Sahoo J, Panigrahi S, Prasad D, Bhola R, Mohanty S, Behera B. Challenges in detection of adolescent anaemia: validation of point-of-care device (Mission® plus) for haemoglobin measurement among tribal residential school children of selected districts of Odisha, India. Indian J Community Med 2021; 46:680-684. [PMID: 35068733 PMCID: PMC8729287 DOI: 10.4103/ijcm.ijcm_96_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 10/01/2021] [Indexed: 12/03/2022] Open
Abstract
Background: Screening for anemia among tribal school children has been a challenge. Objectives: To validate a point-of-care (POC) device (mission® plus hemoglobinometer) to the gold standard method, spectrophotometry. Study Design: Cross-sectional study. Participants: The representative sample of 953 tribal adolescents from the residential schools of Odisha. Methods: Hemoglobin was measured simultaneously by the POC and gold standard method during January to July 2019. The validity of the POC device was measured by sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV). The area under the curve was calculated using receiver operating characteristic (ROC) analysis. Concordance of the POC device with the gold standard method was determined by the Bland–Altman plot. The intraclass correlation coefficient (ICC), precision (⍴), a bias correction factor (Cb), and the concordance correlation coefficient were also calculated. Deming regression analysis was performed, and a linear equation was established. Results: The mean age of the study participants was 13.07 (±1.48) years. The prevalence of anemia was 45.54% by the gold standard method. The sensitivity and specificity of the POC device were 94.9% and 56.1%, respectively. PPV and NPVs were 64.4% and 93.0%, respectively. The area under the ROC curve was found to be 0.856. The ICC was 0.887 (95% confidence interval: 0.872–0.901). Conclusions: Very good reliability/absolute agreement for hemoglobin measurements existed between the POC device and the gold standard method making it suitable as a screening device.
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Auld AF, Fielding K, Agizew T, Maida A, Mathoma A, Boyd R, Date A, Pals SL, Bicego G, Liu Y, Shiraishi RW, Ehrenkranz P, Serumola C, Mathebula U, Alexander H, Charalambous S, Emerson C, Rankgoane-Pono G, Pono P, Finlay A, Shepherd JC, Holmes C, Ellerbrock TV, Grant AD. Risk scores for predicting early antiretroviral therapy mortality in sub-Saharan Africa to inform who needs intensification of care: a derivation and external validation cohort study. BMC Med 2020; 18:311. [PMID: 33161899 PMCID: PMC7650165 DOI: 10.1186/s12916-020-01775-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 09/02/2020] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Clinical scores to determine early (6-month) antiretroviral therapy (ART) mortality risk have not been developed for sub-Saharan Africa (SSA), home to 70% of people living with HIV. In the absence of validated scores, WHO eligibility criteria (EC) for ART care intensification are CD4 < 200/μL or WHO stage III/IV. METHODS We used Botswana XPRES trial data for adult ART enrollees to develop CD4-independent and CD4-dependent multivariable prognostic models for 6-month mortality. Scores were derived by rescaling coefficients. Scores were developed using the first 50% of XPRES ART enrollees, and their accuracy validated internally and externally using South African TB Fast Track (TBFT) trial data. Predictive accuracy was compared between scores and WHO EC. RESULTS Among 5553 XPRES enrollees, 2838 were included in the derivation dataset; 68% were female and 83 (3%) died by 6 months. Among 1077 TBFT ART enrollees, 55% were female and 6% died by 6 months. Factors predictive of 6-month mortality in the derivation dataset at p < 0.01 and selected for the CD4-independent score included male gender (2 points), ≥ 1 WHO tuberculosis symptom (2 points), WHO stage III/IV (2 points), severe anemia (hemoglobin < 8 g/dL) (3 points), and temperature > 37.5 °C (2 points). The same variables plus CD4 < 200/μL (1 point) were included in the CD4-dependent score. Among XPRES enrollees, a CD4-independent score of ≥ 4 would provide 86% sensitivity and 66% specificity, whereas WHO EC would provide 83% sensitivity and 58% specificity. If WHO stage alone was used, sensitivity was 48% and specificity 89%. Among TBFT enrollees, the CD4-independent score of ≥ 4 would provide 95% sensitivity and 27% specificity, whereas WHO EC would provide 100% sensitivity but 0% specificity. Accuracy was similar between CD4-independent and CD4-dependent scores. Categorizing CD4-independent scores into low (< 4), moderate (4-6), and high risk (≥ 7) gave 6-month mortality of 1%, 4%, and 17% for XPRES and 1%, 5%, and 30% for TBFT enrollees. CONCLUSIONS Sensitivity of the CD4-independent score was nearly twice that of WHO stage in predicting 6-month mortality and could be used in settings lacking CD4 testing to inform ART care intensification. The CD4-dependent score improved specificity versus WHO EC. Both scores should be considered for scale-up in SSA.
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Affiliation(s)
- Andrew F Auld
- Division of Global HIV & TB, United States Centers for Disease Control and Prevention (CDC), Nico House, City Centre, P.O. Box 30016, Lilongwe 3, Malawi.
| | - Katherine Fielding
- TB Centre, London Sch. of Hygiene & Tropical Med, London, UK.,School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
| | - Tefera Agizew
- Division of TB Elimination, Centers for Disease Control and Prevention, Gaborone, Botswana
| | - Alice Maida
- Division of Global HIV & TB, United States Centers for Disease Control and Prevention (CDC), Nico House, City Centre, P.O. Box 30016, Lilongwe 3, Malawi
| | - Anikie Mathoma
- Division of TB Elimination, Centers for Disease Control and Prevention, Gaborone, Botswana
| | - Rosanna Boyd
- Division of TB Elimination, Centers for Disease Control and Prevention, Gaborone, Botswana
| | - Anand Date
- Division of Global HIV & TB, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Sherri L Pals
- Division of Global HIV & TB, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - George Bicego
- Division of Global HIV & TB, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Yuliang Liu
- Division of Global HIV & TB, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Ray W Shiraishi
- Division of Global HIV & TB, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | | | - Christopher Serumola
- Division of TB Elimination, Centers for Disease Control and Prevention, Gaborone, Botswana
| | - Unami Mathebula
- Division of TB Elimination, Centers for Disease Control and Prevention, Gaborone, Botswana
| | - Heather Alexander
- Division of Global HIV & TB, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | | | - Courtney Emerson
- Division of Global HIV & TB, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | | | - Pontsho Pono
- Ministry of Health and Wellness, Gaborone, Botswana
| | - Alyssa Finlay
- Division of TB Elimination, Centers for Disease Control and Prevention, Gaborone, Botswana
| | - James C Shepherd
- Division of TB Elimination, Centers for Disease Control and Prevention, Gaborone, Botswana.,Yale University School of Medicine, New Haven, CT, USA
| | - Charles Holmes
- Center for Global Health Practice and Impact, Georgetown University Medical Center, Washington D.C, USA
| | - Tedd V Ellerbrock
- Division of Global HIV & TB, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Alison D Grant
- TB Centre, London Sch. of Hygiene & Tropical Med, London, UK.,School of Public Health, University of the Witwatersrand, Johannesburg, South Africa.,Africa Health Research Institute, School of Nursing and Public Heath, University of KwaZulu-Natal, Durban, South Africa
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Anemia and Its Determinants among Male and Female Adolescents in Southern Ethiopia: A Comparative Cross-Sectional Study. Anemia 2020; 2020:3906129. [PMID: 33133690 PMCID: PMC7568789 DOI: 10.1155/2020/3906129] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 08/31/2020] [Accepted: 09/19/2020] [Indexed: 11/18/2022] Open
Abstract
Background Adolescent anemia is a major public health problem worldwide. Adolescents (10–19 years) are at an increased risk of developing anemia due to increased iron demand during puberty, menstrual losses, limited dietary iron intake, and faulty dietary habits. Objective To assess the prevalence of anemia and associated factors among male and female adolescent students in Dilla Town, Gedeo Zone, Southern Ethiopia, May 2018. Methods A school-based comparative cross-sectional study was employed among 742 school adolescents. Basic characteristics, anthropometric measurements, haemoglobin measurement, and others were collected. Data were analyzed using SPSS version 20 software, and descriptive statistics were computed for all variables. Bivariate and multivariable logistic regression analyses using binary logistic regression were done, the results were interpreted by using AOR with their corresponding 95% CI, and statistically significant difference was declared at p < 0.05 Result Out of the total 742 respondents, 377 (50.8%) were males and 365 (49.2%) were females. The overall prevalence of anemia was 21.1%, and the prevalence of anemia was 22.5% among male adolescents and 19.7% among females. Male adolescent students within the early adolescence age group (10–13 yrs) (AOR 0.27, 95% CI, 0.08–0.87), those consuming fibre-rich foods daily (AOR 0.11, 95% CI, 0.02–0.61), and those having no intestinal parasites (AOR 0.04, 95% CI, 0.02–0.09) were less likely to be anemic. Similarly, female adolescent students not having intestinal parasites (AOR 0.05, 95% CI, 0.01–0.11) were less likely to develop anemia while those from malaria endemic area (AOR 2.57, 95% CI, 1.13–5.83) were identified to be more anemic. Conclusion This study identified that anemia was a moderate public health significance in the study area, and the prevalence of anemia was slightly higher among male than female adolescents. Age category, frequency of eating fibre-rich foods, and positive intestinal parasite tests were factors contributing for anemia among male adolescents while presence of intestinal parasite and malaria endemicity were the determinants of anemia among female adolescents.
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Nass SA, Hossain I, Sanyang C, Baldeh B, Pereira DIA. Hemoglobin point-of-care testing in rural Gambia: Comparing accuracy of HemoCue and Aptus with an automated hematology analyzer. PLoS One 2020; 15:e0239931. [PMID: 33002049 PMCID: PMC7529235 DOI: 10.1371/journal.pone.0239931] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 09/15/2020] [Indexed: 11/18/2022] Open
Abstract
Background Anemia is one of the most impactful nutrient deficiencies in the world and disproportionately affects children in low-resource settings. Point-of-care devices (PoCDs) measuring blood hemoglobin (Hb) are widely used in such settings to screen for anemia due to their low cost, speed, and convenience. Here we present the first iteration of Aptus, a new PoCD which measures Hb and hematocrit (HCT). Aim To evaluate the accuracy of Aptus and HemoCue® Hb 301 against an automated hematology analyzer (Medonic®) in Gambian children aged 6–35 months and the Aptus’ usage in the field. Methods Aptus, HemoCue® and Medonic® were compared using venous blood (n = 180), and Aptus and HemoCue® additionally using capillary blood (n = 506). Agreement was estimated using Bland-Altman analysis and Lin’s concordance. Usage was assessed by error occurrence and user experience. Results Mean Hb values in venous blood did not significantly differ between Aptus and HemoCue® (10.44±1.05 vs 10.56±0.93g/dl, p>0.05), but both measured higher Hb concentrations than Medonic® (9.75±0.99g/dl, p<0.0001). Lin’s coefficient between Aptus and Medonic® was rc = 0.548, between HemoCue® and Medonic® rc = 0.636. Mean bias between the PoCDs venous measurements was -0.11g/dl with limits of agreement (LoA) -1.63 and 1.40g/dl. The bias was larger for the comparisons between the Medonic® and both Aptus (0.69g/dl, LoA 0.92 and 2.31g/dl) and HemoCue® (0.81g/dl, LoA 0.17 and 1.78g/dl). ROC curves showed an AUC of 0.933 in HemoCue® and 0.799 in Aptus. Capillary Hb was higher with Aptus than HemoCue® (10.33±1.11g/dl vs 10.01±1.07g/dl, p<0.0001). Mean bias was 0.32g/dl with LoA of -1.91 and 2.54g/dl. Aptus‘ usage proved intuitive, yet time-to-results and cuvettes could be improved. Conclusion Both PoCDs showed a relatively limited bias but large LoA. Aptus and HemoCue® showed similar accuracy, while both overestimated Hb levels. Aptus showed promise, with its operation unimpaired by field conditions as well as being able to show HCT values.
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Affiliation(s)
- Stefan A. Nass
- Medical Humanities, Amsterdam-UMC—VUmc Location, Vrije Universiteit, Amsterdam, The Netherlands
- Medical Research Council Unit, The Gambia at the London School of Hygiene & Tropical Medicine, Banjul, The Gambia
- * E-mail:
| | - Ilias Hossain
- Medical Research Council Unit, The Gambia at the London School of Hygiene & Tropical Medicine, Banjul, The Gambia
| | - Chilel Sanyang
- Medical Research Council Unit, The Gambia at the London School of Hygiene & Tropical Medicine, Banjul, The Gambia
| | - Bakary Baldeh
- Medical Research Council Unit, The Gambia at the London School of Hygiene & Tropical Medicine, Banjul, The Gambia
| | - Dora I. A. Pereira
- Medical Research Council Unit, The Gambia at the London School of Hygiene & Tropical Medicine, Banjul, The Gambia
- Department of Pathology, University of Cambridge, Cambridge, United Kingdom
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Johnson M, Marwick PC, Coetzee JF. Comparison of Hemoglobin Measurements by 3 Point-of-Care Devices With Standard Laboratory Values and Reliability Regarding Decisions for Blood Transfusion. Anesth Analg 2020; 131:640-649. [PMID: 31764158 DOI: 10.1213/ane.0000000000004533] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND We compared the accuracy of 3 point-of-care testing (POCT) devices with central laboratory measurements and the extent to which between-method disagreements could influence decisions to transfuse blood. METHODS Hemoglobin concentrations [Hb] were measured in 58 adult patients undergoing cardiothoracic surgery using 2 Ilex GEM Premier 3500 blood gas analyzers (BG_A and BG_B) and a HemoCue Hb-201 device (HemoCue). Measurements were compared with our central laboratory's Siemens Advia 2120 flow cytometry system (laboratory [Hb] [Lab[Hb]]), regarded as the gold standard. We considered that between-method [Hb] differences exceeding 10% in the [Hb] range 6-10 g/dL would likely erroneously influence erythrocyte transfusion decisions. RESULTS The 70 Lab[Hb] measurements ranged from 5.8 to 16.7 g/dL, of which 25 (36%) were <10.0 g/dL. Measurements by all 4 devices numbered 57. Mean POCT measurements did not differ significantly (P > .99). Results of the Bland-Altman analyses revealed statistically significant bias, with predominant underestimations by all 3 POCTs predominating. HemoCue upper and lower limits of agreement (LOA) were narrower, and the 95% confidence intervals (95% CIs) of the LOAs did not overlap with those of BG_A and BG_B. Similarly, a narrow mountain plot demonstrated greater precision for the HemoCue. Comparing BG_A with BG_B revealed no bias and narrow LOA. Error grid analysis within the [Hb] range 6-10 g/dL revealed that 5.3% of HemoCue measurements were beyond the permissible 10.0% error zone in contrast to 19.0% and 16.0% of the blood gas measurements. Possible inappropriate transfusion decisions based on POCT values generally erred toward unnecessary transfusions. Calculations of Cohen κ statistic indicated better chance-corrected agreement between HemoCue and Lab[Hb] regarding erythrocyte transfusions than the blood gas analyzers. CONCLUSIONS All 3 POCT devices underestimated the Lab[Hb] and cannot be used interchangeably with standard laboratory measurements. BG_A and BG_B can be considered to be acceptably interchangeable with each other. Whereas the HemoCue had little bias and good precision, the blood gas analyzers revealed large bias and poor precision. We conclude that the tested HemoCue provides more reliable measurements, especially within the critical 6-10 g/dL range, with reduced potential for transfusion errors. Decisions regarding erythrocyte transfusions should also be considered in the light of clinical findings.
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Affiliation(s)
- Marianne Johnson
- From the Department of Anesthesiology and Critical Care, Faculty of Medicine and Health Sciences, Stellenbosch University and Tygerberg Academic Hospital, Cape Town, South Africa
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Jain A, Chowdhury N. Comparison of the accuracy of capillary hemoglobin estimation and venous hemoglobin estimation by two models of HemoCue against automated cell counter hemoglobin measurement. Asian J Transfus Sci 2020; 14:49-53. [PMID: 33162706 PMCID: PMC7607980 DOI: 10.4103/ajts.ajts_93_17] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 11/30/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND: HemoCue point of care devices has been extensively used in screening for anemia in blood banking. HemoCue can estimate hemoglobin (Hb) both from venous as well as capillary blood. However, the suitability of HemoCue Hb estimation in donor selection is unclear. AIMS: The aims of this study were to evaluate variance of difference in Hb measurement in capillary HemoCue estimation as compared to venous HemoCue estimation from automated cell counter and to assess accuracy of two different HemoCue models (201 and 301) against automated cell counter Hb measurements in both capillary as well as venous blood. MATERIALS AND METHODS: HemoCue 201 and 301 were evaluated by a comparison of methods study against Sysmex XP-100 three-part analyzer at a blood bank of a tertiary care hospital in Uttarakhand, India, in 2017. Assessment for anemia of 115 donors was done initially by capillary Hb by a convenience sampling to 2 instruments from 2 different models of HemoCue (total of 4 instruments). Venous blood collected was analyzed by Sysmex XP-100 and all HemoCue analyzers. RESULTS: For capillary method, bias ranged from −0.97 to −0.37 g/dL, upper limit of agreement (LOA) ranged from 0.72 to −1.06 g/dL, and lower LOA ranged from −2.65 to −1.79 g/dL. For venous method, bias ranged from −0.03 to −0.24 g/dL, the upper LOA ranged from 0.81 to −1.07 g/dL, and lower LOA ranged from −1.04 to −0.57 g/dL. Thus, capillary HemoCue estimation exhibited greater bias as well as wider LOA. Variance of the differences from automated counter was significantly lower for venous HemoCue comparison compared to capillary HemoCue estimation (P < 0.001 for each instrument). CONCLUSION: Errors in capillary sampling of blood show the extent to which preanalytical errors can influence results in point-of-care devices. We suggest augmentation of any blood bank-based Hb screening process based just on capillary sampling to be augmented by a properly selected venous sampling to reduce deferral for a false-positive screen of anemia.
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Affiliation(s)
- Ashish Jain
- Department of Transfusion Medicine and Blood Bank, AIIMS, Rishikesh, Uttarakhand, India
| | - Nilotpal Chowdhury
- Department of Pathology and Laboratory Medicine and In-charge, Blood Bank, AIIMS, Rishikesh, Uttarakhand, India
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Agustina R, Nadiya K, Andini EA, Setianingsih AA, Sadariskar AA, Prafiantini E, Wirawan F, Karyadi E, Raut MK. Associations of meal patterning, dietary quality and diversity with anemia and overweight-obesity among Indonesian school-going adolescent girls in West Java. PLoS One 2020; 15:e0231519. [PMID: 32324775 PMCID: PMC7179884 DOI: 10.1371/journal.pone.0231519] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 03/25/2020] [Indexed: 11/19/2022] Open
Abstract
Background Poor diet is a risk factor for anemia, overweight, and obesity among adolescent girls. However, comprehensive assessment on dietary quality and habits in this population is limited. We assessed the association of meal patterning, dietary quality, and dietary diversity with both anemia and overweight-obesity. Methods We conducted a cross-sectional survey in 335 school-going adolescent girls aged 12–19 years from three districts in West Java using multi-stage cluster sampling. Meal patterning, Dietary Quality Index for Adolescents (DQI-A), and Dietary Diversity Score (DDS) were determined using 2-day 24-h recall. Results Of the girls, 45% were anemic and 17% overweight or obese. Eating occasions of 3–4 times (AOR 2.68, 95% CI 1.21–5.98) and >4 times (AOR 2.43, 95% CI 1.01–5.83) were associated with greater odds of developing anemia compared to eating occasions of <3 times. Adolescent girls who skipped dinner had greater odds of being overweight or obese (AOR 2.13, 95% CI 1.10–4.10) and were less likely to be anemic (AOR 0.56, 95%CI 0.33–0.95) compared to those who did not skip dinner. Difference in energy intake was found between girls who had dinner and skipped dinner (p = 0.05). Mean total DQI-A score was 44.4% ± 7.71% and DDS was 4.0 out of 9.0. DQI-A score was significantly higher in non-anemic compared to anemic girls. Moreover, each unit increment of 1% of total DQI-A score was associated with a 3.967 g/dL increases of hemoglobin after adjustment for confounders. We found differences in total DQI-A score between normal-weight and overweight or obese girls. DDS score was not significantly different between groups, although lower meat, chicken, and fish consumption were correlated with anemia (p<0.01). Conclusions Overall, the girls had poor dietary quality and diversity. The findings therefore indicated the importance of improving dietary quality and diversity in a regular meal pattern, especially meal frequency and meal skipping, to reduce the risk of anemia and overweight-obesity among adolescent girls.
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Affiliation(s)
- Rina Agustina
- Department of Nutrition, Faculty of Medicine, Universitas Indonesia–Dr. Cipto Mangunkusumo General Hospital, Jakarta, Indonesia
- Human Nutrition Research Center, Indonesian Medical Education and Research Institute (HNRC IMERI), Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
- * E-mail: ,
| | - Khairun Nadiya
- Human Nutrition Research Center, Indonesian Medical Education and Research Institute (HNRC IMERI), Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - El A. Andini
- Medical Study Program, Faculty of Medicine, Universitas Indonesia–Dr. Cipto Mangunkusumo General Hospital, Jakarta, Indonesia
| | - Ainanur A. Setianingsih
- Medical Study Program, Faculty of Medicine, Universitas Indonesia–Dr. Cipto Mangunkusumo General Hospital, Jakarta, Indonesia
| | - Arini A. Sadariskar
- Medical Study Program, Faculty of Medicine, Universitas Indonesia–Dr. Cipto Mangunkusumo General Hospital, Jakarta, Indonesia
| | - Erfi Prafiantini
- Department of Nutrition, Faculty of Medicine, Universitas Indonesia–Dr. Cipto Mangunkusumo General Hospital, Jakarta, Indonesia
- Human Nutrition Research Center, Indonesian Medical Education and Research Institute (HNRC IMERI), Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Fadila Wirawan
- Human Nutrition Research Center, Indonesian Medical Education and Research Institute (HNRC IMERI), Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Elvina Karyadi
- Former Nutrition International, Country Office Jakarta, Jakarta, Indonesia
| | - Manoj K. Raut
- Nutrition International, Asia Regional Office, New Delhi, India
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Bäckman S, Valkeajärvi A, Korkalainen P, Arvas M, Castrén J. Venous sample is superior to repeated skin-prick testing in blood donor haemoglobin second-line screening. Vox Sang 2020; 115:617-623. [PMID: 32314403 DOI: 10.1111/vox.12920] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 03/02/2020] [Accepted: 03/26/2020] [Indexed: 12/01/2022]
Abstract
BACKGROUND Blood donor haemoglobin concentration (Hb) is commonly measured from a skin-prick sample. However, the skin-prick sample is prone to preanalytical error and variation, which may lead to false deferrals due to low Hb. STUDY DESIGN AND METHODS We assessed the efficacy of two second-line screening models for the evaluation of blood donors failing the initial skin-prick test. In the venous model (n = 305), Hb was measured from a venous sample at the donation site. In the skin-prick model (n = 331), two additional skin-prick samples were measured. All on-site Hb measurements were performed with HemoCue Hb201+ (HemoCue AB) point-of-care (POC) device. Hb in the venous samples was later also determined with a hematology analyzer (Sysmex XN, Sysmex Co.) to obtain the donor's correct Hb. A questionnaire evaluated Blood Service nurses' preferences regarding Hb assessment. RESULTS Significantly less donors were deferred from donation with venous model (40%) than with skin-prick model (51%; chi-square test P = 0·004). Only two donors (0·7%) were incorrectly accepted in the venous model. Further, Blood Service nurses preferred venous model over skin-prick model. After the study, the venous model was implemented nationwide, and in the first two months after implementation, the deferral rate due to low Hb decreased from 2·7% to 1·9%. CONCLUSION A venous sample for blood donor Hb second-line screening significantly decreased low Hb deferrals compared to repeated skin-prick testing without compromising donor safety. Valuable donations can be recovered by implementing a practical second-line screening model based on venous sampling.
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Affiliation(s)
- Sari Bäckman
- Finnish Red Cross Blood Service, Helsinki, Finland
| | | | | | - Mikko Arvas
- Finnish Red Cross Blood Service, Helsinki, Finland
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Choukem SP, Sih C, Ntumsi AT, Dimala CA, Mboue-Djieka Y, Ngouadjeu EDT, Kengne AP. Evaluation of the accuracy of two point-of-care haemoglobin meters used in sub-Saharan African population: a cross-sectional study. BMC Cardiovasc Disord 2020; 20:111. [PMID: 32138653 PMCID: PMC7057498 DOI: 10.1186/s12872-020-01371-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 01/30/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Point-of-care haemoglobin meters are attractive solutions to improve timely diagnosis of anaemia in resource-limited settings. However, concerns regarding the accuracy of these meters may affect their adoption. The accuracy of two hand-held point-of-care haemoglobin meters was evaluated against reference full blood count analyser. METHODS This was a hospital-based cross-sectional study conducted at the Douala General hospital, Cameroon. Two handheld haemoglobin meters were assessed: Urit12® (URIT Medical Electronics Co.,Ltd. Guangxi, China) and MissionHb®(ACON Laboratories, Inc., San Diego, USA); against a reference standard CELL-DYN RUBY® (ABBOTT DIAGNOSTICS, Illinois, USA). The Pearson's correlation and Bland-Altman agreement were used to assess the technical accuracy of the meters. Clinical accuracy was evaluated using total error allowable and area under the Receiver Operating Curve. Finally, their agreement with the reference in diagnosing anaemia was assessed using the kappa statistic. RESULTS A total of 228 participants were included in the study. The mean haemoglobin values of both haemoglobin meters (MissionHb®: 11.6 ± 2.5 g/dl; Urit12®: 10.9 ± 2.7 g/dl) were significantly higher than the reference value (10.5 ± 2.5 g/dl), p < 0.001 for both meters. Both haemoglobin meters had good correlation with the reference analyser (r = 0.89 and r = 0.90 for Urit12® and MissionHb® respectively) and good agreement on the Bland-Altman plots. However, the MissionHb® meter did not meet the clinical accuracy requirements (p < 0.001). Even though both meters were excellent at identifying the presence of anemia (MissionHb® - AUC = 0.9161, Urit 12® - AUC = 0.9009), they, however, both had weak agreement with the reference analyser in diagnosing the severity of anaemia (K = 0.39 for MissionHb®, p < 0.001 and K = 0.54 for Urit12®, p < 0.001). CONCLUSION Although both devices showed technical accuracy with a positive correlation with the reference analyser and were able to accurately diagnose the presence of anemia, both meters however, had sub-optimal agreement with the reference analyser in diagnosing the degree of severity of anaemia among our participants.
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Affiliation(s)
- Simeon-Pierre Choukem
- Department of Internal Medicine and Paediatrics, Faculty of Health Sciences, University of Buea, Buea, Cameroon. .,Health and Human Development (2HD) Research Network, Douala, Cameroon. .,Department of Internal Medicine, Douala General Hospital, P.O. Box 4856, Douala, Cameroon. .,Faculty of Medicine and Pharmaceutical Sciences, University of Dschang, Dschang, Cameroon.
| | - Colette Sih
- Health and Human Development (2HD) Research Network, Douala, Cameroon
| | | | - Christian Akem Dimala
- Health and Human Development (2HD) Research Network, Douala, Cameroon.,Infectious Disease Unit, University Hospitals of Leicester, Leicester, UK
| | | | - Eveline D T Ngouadjeu
- Haematology Unit, Department of Laboratory, Douala General Hospital, Douala, Cameroon.,Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala, Cameroon
| | - Andre-Pascal Kengne
- South African Medical Research Council and University of Cape Town, Cape Town, South Africa
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Yadav K, Arjun MC, Jacob OM, Kant S, Ahamed F, Ramaswamy G. Comparison of different doses of daily iron supplementation for anemia prophylaxis in pregnancy: A systematic review. J Family Med Prim Care 2020; 9:1308-1316. [PMID: 32509609 PMCID: PMC7266263 DOI: 10.4103/jfmpc.jfmpc_960_19] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 02/16/2020] [Accepted: 02/24/2020] [Indexed: 12/18/2022] Open
Abstract
Different doses of iron are used for oral supplementation during pregnancy throughout the world. This objective of this review is to describe the effectiveness and side effect profile of different doses of oral iron supplementation for prophylaxis of anemia among pregnant women. Published literature was searched using keywords "iron," "pregnancy," and "supplementation" and related terms. Gray literature was searched in medical libraries including National Medical Library, Dr. B. B. Dikshit library, and library of ICMR. Intervention studies comparing different doses of oral iron given as prophylaxis for anemia during pregnancy, published till December 2017, were retrieved. Studies done only among anemic patients, and studies comparing oral iron with placebo were excluded. In total, 1588 studies were obtained and 11 of them met the objectives. In global studies, prophylactic dose of 30 mg and above is shown to maintain normal hemoglobin. Among the studies from India, prophylactic dose of 120 mg showed consistent results and 60 mg showed inconsistent results in increasing both hemoglobin and ferritin levels. No significant difference in side effects was reported up to 80 mg iron in global studies and the side effects were comparable with 60 to 240 mg doses in Indian studies. It was evident from the review that a state of clinical equipoise exists for the ideal dose of iron supplementation for the prevention of anemia in pregnancy in terms of efficacy and side effect profile. Robust clinical trial as well as technical consultation is required, especially in Indian setting to explore this question further.
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Affiliation(s)
- Kapil Yadav
- National Centre of Excellence and Advanced Research on Anemia Control, Centre for Community Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - M C Arjun
- Centre for Community Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Olivia Marie Jacob
- Centre for Community Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Shashi Kant
- National Centre of Excellence and Advanced Research on Anemia Control, Centre for Community Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Farhad Ahamed
- Department of Community Medicine and Family Medicine, All India Institute of Medical Sciences, Kalyani, West Bengal, India
| | - Gomathi Ramaswamy
- National Centre of Excellence and Advanced Research on Anemia Control, Centre for Community Medicine, All India Institute of Medical Sciences, New Delhi, India
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Chirwa E, Kapito E, Jere DL, Kafulafula U, Chodzaza E, Chorwe-Sungani G, Gresh A, Liu L, Abrams ET, Klima CS, McCreary LL, Norr KF, Patil CL. An effectiveness-implementation hybrid type 1 trial assessing the impact of group versus individual antenatal care on maternal and infant outcomes in Malawi. BMC Public Health 2020; 20:205. [PMID: 32039721 PMCID: PMC7008527 DOI: 10.1186/s12889-020-8276-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 01/27/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Sub-Saharan Africa has the world's highest rates of maternal and perinatal mortality and accounts for two-thirds of new HIV infections and 25% of preterm births. Antenatal care, as the entry point into the health system for many women, offers an opportunity to provide life-saving monitoring, health promotion, and health system linkages. Change is urgently needed, because potential benefits of antenatal care are not realized when pregnant women experience long wait times and short visits with inconsistent provisioning of essential services and minimal health promotion, especially for HIV prevention. This study answers WHO's call for the rigorous study of group antenatal care as a transformative model that provides a positive pregnancy experience and improves outcomes. METHODS Using a hybrid type 1 effectiveness-implementation design, we test the effectiveness of group antenatal care by comparing it to individual care across 6 clinics in Blantyre District, Malawi. Our first aim is to evaluate the effectiveness of group antenatal care through 6 months postpartum. We hypothesize that women in group care and their infants will have less morbidity and mortality and more positive HIV prevention outcomes. We will test hypotheses using multi-level hierarchical models using data from repeated surveys (four time points) and health records. Guided by the consolidated framework for implementation research, our second aim is to identify contextual factors related to clinic-level degree of implementation success. Analyses use within and across-case matrices. DISCUSSION This high-impact study addresses three global health priorities, including maternal and infant mortality, HIV prevention, and improved quality of antenatal care. Results will provide rigorous evidence documenting the effectiveness and scalability of group antenatal care. If results are negative, governments will avoid spending on less effective care. If our study shows positive health impacts in Malawi, the results will provide strong evidence and valuable lessons learned for widespread scale-up in other low-resource settings. Positive maternal, neonatal, and HIV-related outcomes will save lives, impact the quality of antenatal care, and influence health policy as governments make decisions about whether to adopt this innovative healthcare model. TRIAL REGISTRATION ClinicalTrials.gov registration number NCT03673709. Registered on September 17, 2018.
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Affiliation(s)
- Ellen Chirwa
- University of Malawi, Kamuzu College of Nursing, PO Box 415, Blantyre, Malawi
| | - Esnath Kapito
- University of Malawi, Kamuzu College of Nursing, PO Box 415, Blantyre, Malawi
| | - Diana L Jere
- University of Malawi, Kamuzu College of Nursing, PO Box 415, Blantyre, Malawi
| | - Ursula Kafulafula
- University of Malawi, Kamuzu College of Nursing, PO Box 415, Blantyre, Malawi
| | - Elizabeth Chodzaza
- University of Malawi, Kamuzu College of Nursing, PO Box 415, Blantyre, Malawi
| | | | - Ashley Gresh
- Johns Hopkins University, School of Nursing, 525 North Wolfe Street, Baltimore, MD, 21205, USA
| | - Li Liu
- University of Illinois at Chicago, School of Public Health, 1603 W. Taylor Street (M/C 932), Chicago, IL, 60612, USA
| | - Elizabeth T Abrams
- University of Illinois at Chicago, College of Nursing, 845 S. Damen Avenue (M/C 806), Chicago, IL, 60612, USA
| | - Carrie S Klima
- University of Illinois at Chicago, College of Nursing, 845 S. Damen Avenue (M/C 806), Chicago, IL, 60612, USA
| | - Linda L McCreary
- University of Illinois at Chicago, College of Nursing, 845 S. Damen Avenue (M/C 806), Chicago, IL, 60612, USA
| | - Kathleen F Norr
- University of Illinois at Chicago, College of Nursing, 845 S. Damen Avenue (M/C 806), Chicago, IL, 60612, USA
| | - Crystal L Patil
- University of Illinois at Chicago, College of Nursing, 845 S. Damen Avenue (M/C 806), Chicago, IL, 60612, USA.
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Yilma H, Sedlander E, Rimal RN, Pant I, Munjral A, Mohanty S. The reduction in anemia through normative innovations (RANI) project: study protocol for a cluster randomized controlled trial in Odisha, India. BMC Public Health 2020; 20:203. [PMID: 32033546 PMCID: PMC7007687 DOI: 10.1186/s12889-020-8271-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 01/24/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND More than half of women in India are anemic. Anemia can result in fatigue, poor work productivity, higher risk of pre-term delivery, and maternal mortality. The Indian government has promoted the use of iron-folic acid supplements (IFA) for the prevention and treatment of anemia for the past five decades, but uptake remains low and anemia prevalence high. Current programs target individual-level barriers among pregnant women and adolescents, but a more comprehensive approach that targets multiple levels among all women of reproductive age is needed to increase uptake of IFA and iron-rich foods. METHODS The Reduction in Anemia through Normative Innovations (RANI) project is a norms-based intervention to reduce anemia among women of reproductive age. We will evaluate the intervention through a clustered randomized controlled trial in Odisha, India. We will collect data at three time points (baseline, midline, and end line). For the study, we selected 89 clusters of villages, which we randomized into treatment and control on a 1:1 basis. The treatment arm will receive the RANI project components while the control arm will receive usual care. Fifteen clusters (40-41 villages) were selected and 4000 women (2000 in each arm) living in the selected clusters will be randomly selected to take part in data collection. Women in both study arms will have their hemoglobin concentrations measured. They will also complete in-person surveys about their knowledge, attitudes, perceptions of iron folic acid supplements, and nutritional intake. We will also select a smaller cohort of 300 non-pregnant women (150 in each arm) from this cohort for additional physical activity and cognitive testing. We will conduct both within- and between-group comparisons (treatment and control) at baseline, midline and end line using t-tests. We will also conduct structural equation modeling to examine how much each factor accounts for IFA use and hemoglobin levels. DISCUSSION This RCT will enable us to examine whether a social norms-based intervention can increase uptake of iron folic acid supplements and iron rich foods to reduce anemia. TRIAL REGISTRATION This trial was registered with Clinical Trial Registry- India (CTRI) (CTRI/2018/10/016186) on 29 October 2018.
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Affiliation(s)
- Hagere Yilma
- Department of Prevention and Community Health, George Washington University Milken Institute School of Public Health, Washington, District of Columbia, USA.
| | - Erica Sedlander
- Department of Prevention and Community Health, George Washington University Milken Institute School of Public Health, Washington, District of Columbia, USA
| | - Rajiv N Rimal
- Department of Health, Behavior and Society, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
| | - Ichhya Pant
- Department of Prevention and Community Health, George Washington University Milken Institute School of Public Health, Washington, District of Columbia, USA
| | - Ashita Munjral
- Department of Social and Economic Empowerment, IPE Global Limited, New Delhi, Delhi, India
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Mohammed H, Marquis GS, Aboud F, Bougma K, Samuel A. Pre-pregnancy iodized salt improved children's cognitive development in randomized trial in Ethiopia. MATERNAL AND CHILD NUTRITION 2020; 16:e12943. [PMID: 31912649 PMCID: PMC7296810 DOI: 10.1111/mcn.12943] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Revised: 12/04/2019] [Accepted: 12/15/2019] [Indexed: 12/04/2022]
Abstract
The overarching Ethiopia project examined the effects of early market introduction of iodized salt on the growth and mental development of young children. Sixty districts were randomly assigned to intervention (early market access to iodized salt) or control (later access through market forces), and one community per district was randomly chosen as the sampling unit. For this project, 22 of the districts were included. The participants were 1,220 pregnant women who conceived after the intervention began. When their children were 2 to 13 months old, field staff collected information on household sociodemographic status and iodized salt intake, child stimulation, maternal depression symptoms, children's diet, anthropometry, urinary iodine concentration (UIC), hemoglobin, and mental development scores (Bayley III scales). Fewer mothers prepartum (28% vs. 41%, p < .05) and their children (13% vs. 20%, p < .05) were iodine deficient (UIC <50 μg/L) in the intervention compared with the control group. The intervention children had higher cognitive scores (33.3 ± 0.3 vs. 32.6 ± 0.3; Δ = 0.6; 95% CI [0.0, 1.3]; d = 0.17; p = .01; 4 IQ points) than their controls. The other Bayley subscale scores did not differ from control children. The intervention group had a higher child stimulation (22.7 ± 0.2 vs. 22.1 ± 0.2; Δ = 0.5; 95% CI [0.02, 0.89]; d = 0.17; p = .01) but not growth indicators (weight‐for‐age z score, length‐for‐age z score, and weight‐for‐length z score: −1.1 ± 0.1 vs. −1.1 ± 0.1, −1.7 ± 0.1 vs. −1.7 ± 0.1; −0.2 ± 0.1 vs. −0.1 ± 0.1, respectively, all p > .05) compared with their controls. Iodized salt intake improved iodine status of both pregnant women and their children and also child cognitive development.
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Affiliation(s)
- Husein Mohammed
- Nutrition and Food Science Department, University of Ghana, Accra, Ghana
| | - Grace S Marquis
- School of Dietetics and Human Nutrition, McGill University, Quebec, Canada
| | - Frances Aboud
- Department of Psychology, McGill University, Quebec, Canada
| | - Karim Bougma
- School of Dietetics and Human Nutrition, McGill University, Quebec, Canada
| | - Aregash Samuel
- Food Sciences and Nutrition Research Directorate, Ethiopian Public Health Institute, Addis Ababa, Ethiopia
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Anger H, Durocher J, Dabash R, Winikoff B. How well do postpartum blood loss and common definitions of postpartum hemorrhage correlate with postpartum anemia and fall in hemoglobin? PLoS One 2019; 14:e0221216. [PMID: 31437195 PMCID: PMC6705817 DOI: 10.1371/journal.pone.0221216] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 07/30/2019] [Indexed: 11/28/2022] Open
Abstract
Objective We aimed to better understand how well postpartum blood loss and common postpartum hemorrhage (PPH) definitions (i.e. blood loss ≥500ml = PPH, ≥1000ml = “severe” PPH) correlate with postpartum anemia and fall in hemoglobin. Methods Secondary analysis of data from three randomized trials that objectively measured postpartum blood loss and pre- and post-delivery hemoglobin among vaginal deliveries: one trial included 1056 home-births in Pakistan and two multi-country hospital-based trials included 1279 women diagnosed with PPH. We calculated Spearman’s correlation coefficients (rs) for blood loss with hemoglobin drop and postpartum hemoglobin, and we compared PPH blood loss markers (≥500ml, ≥1000ml) with large hemoglobin drops (≥2 g/dL) and the threshold for moderate postpartum anemia (<10g/dL). Results In the Pakistan study and the multi-country trials, blood loss was weakly correlated with hemoglobin drop (Pakistan: rs = -0.220, multi-country trials: rs = -0.271) and postpartum hemoglobin (Pakistan: rs = -0.220, multi-country trials: rs = -0.316). In both the Pakistan and multi-country trials, hemoglobin drop ≥2 g/dL occurred in less than half of women with 500–999 ml blood loss (55/175 [31%] and 302/725 [42%], respectively) and was more common among women who bled ≥1000ml (19/28 [68%] and 347/554 [63%], respectively). Similarly, in the Pakistan and multi-country trials, postpartum anemia <10 g/dL was less frequent among women who bled 500–999 ml (55/175 [31%] and 390/725 [54%], respectively) and more frequent among women with ≥1000ml blood loss (20/28 [71%] and 416/554 [75%], respectively). Conclusions Postpartum morbidity as measured by hemoglobin markers was common for women with blood loss ≥1000ml and relatively infrequent among women with blood loss 500-999ml. These findings reinforce the importance of severe PPH as the preferred outcome to be used in research. The weak correlation between blood loss and hemoglobin markers also suggests that this relationship is not straightforward and should be carefully interpreted.
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Affiliation(s)
- Holly Anger
- Gynuity Health Projects, New York, NY, United States of America
- * E-mail:
| | - Jill Durocher
- Gynuity Health Projects, New York, NY, United States of America
| | - Rasha Dabash
- Gynuity Health Projects, New York, NY, United States of America
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Parental Perception of Childhood Anaemia and Efficiency of Instrument Assisted Pallor Detection among Mothers in Southeast Nigeria: A Field Validation Study. Int J Pediatr 2019; 2019:7242607. [PMID: 31531028 PMCID: PMC6719268 DOI: 10.1155/2019/7242607] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 06/12/2019] [Accepted: 06/20/2019] [Indexed: 11/17/2022] Open
Abstract
Background Control of anemia can be achieved with early detection of pallor by parents at home. However, most parents lack the capacity to recognize pallor; thus most cases of anaemia are detected during hospital visit due to other symptoms. This study aimed to evaluate parental ability to detect pallor when aided with the anaemia screening tool. Methods In the study information on the symptoms of illness and parental knowledge on anaemia. Their ability to detect anaemia aided with the Home-Base anaemia-screen tool (HB-Anae) was compared to the healthcare providers' assessment of pallor. The haemoglobin estimation with the Hb-301 haemoglobinometer was used as the gold standard. Results None of the children in their previous illnesses had paleness as a complaint. Few (20.8%) parents knew what anaemia meant. Only 18.3% knew sites on the body where pallor can be detected. Many (55.1%; 304/552) surveyed children were anaemic (Hb<11g/dl) based on HB 301. Majority (88.8%; 270/304) of the parents aided with the HB-Anae were able to detect pallor on the children who were anaemic compared to 95.1% (289/304) detected by healthcare workers unaided, and the difference was not statistically significant (p=0.25). Conclusion There was poor knowledge on anaemia among parents. The ability of parents to detect anaemia could be improved with the simple HB-Anae screen tool.
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Evaluation of the Performance of Haemoglobin Colour Scale and Comparison with HemoCue Haemoglobin Assay in Diagnosing Childhood Anaemia: A Field Validation Study. Int J Pediatr 2019; 2019:3863070. [PMID: 31354845 PMCID: PMC6633866 DOI: 10.1155/2019/3863070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 06/12/2019] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Anaemia in children has high mortality. We present the results of assessment of the accuracy of Haemoglobin Colour Scale in identifying anaemia compared with HemoCue assay. METHODS The presence of anaemia in 524 children from four communities was screened using the Haemoglobin Colour Scale (HCS) and HemoCue assay. Independent healthcare providers that estimated the haemoglobin level using Hb-301 haemoglobinometer were different from those that read the colour scale. The sensitivity, specificity, positive predictive value, and negative predictive value were estimated. RESULTS Of the 524 children surveyed, 44.5% (233/524), 50% (262/524), and 32.2% (168/524) were found to be anaemic using the HemoCue, HCS (p= 0.25), and clinical pallor (p=0.03) respectively. Using the HemoCue as standard, the sensitivity of the HCS and clinical pallor was 89.1% and 72.1%, respectively, and specificity 90.2% and 84.6%, respectively. 74.7 % of the colour scale result was within the 1.0g/dl of the HemoCue reading and 23 % was within 2.0g/dl. CONCLUSION The HCS can improve the ability to detect anaemia especially where the use of the HemoCue is not feasible as in the resource poor countries. However, every case of anaemia requires further investigation to determine the underlying causes.
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