RESUMEN
The demand for charcoal in Africa is growing rapidly, driven by urbanization and lack of access to electricity. Charcoal production and use, including plastic burning to initiate combustion, release large quantities of trace gases and particles that impact air quality and climate. Here, we develop an inventory of current (2014) and future (2030) emissions from the charcoal supply chain in Africa that we implement in the GEOS-Chem model to quantify the contribution of charcoal to surface concentrations of PM2.5 and ozone and direct radiative forcing due to aerosols and ozone. We estimate that the charcoal industry in 2014 required 140-460 Tg of biomass and 260 tonnes of plastic and that industry emissions could double by 2030, so that methane emissions from the charcoal industry could outcompete those from open fires by 2025. In 2014, the largest enhancements in PM2.5 (0.5-1.4 µg m-3) and ozone (0.4-0.7 ppbv) occur around the densely populated cities in East and West Africa. Cooling due to aerosols (-100 to -300 mW m-2) is concentrated over dense cities, whereas warming due to ozone is widespread, peaking at 4.2 mW m-2 over the Atlantic Ocean. These effects will worsen with ongoing dependence on this energy source, spurred by rapid urbanization and absence of viable cleaner alternatives.
Asunto(s)
Contaminantes Atmosféricos , Contaminación del Aire , África , África Occidental , Contaminantes Atmosféricos/análisis , Contaminación del Aire/análisis , Océano Atlántico , Carbón Orgánico , Ciudades , Monitoreo del Ambiente , Material Particulado/análisisRESUMEN
Africa has ambitious plans to address energy deficits and sustain economic growth with fossil fueled power plants. The continent is also experiencing faster population growth than anywhere else in the world that will lead to proliferation of vehicles. Here, we estimate air pollutant emissions in Africa from future (2030) electricity generation and transport. We find that annual emissions of two precursors of fine particles (PM2.5) hazardous to health, sulfur dioxide (SO2) and nitrogen oxides (NOx), approximately double by 2030 relative to 2012, increasing from 2.5 to 5.5 Tg SO2 and 1.5 to 2.8 Tg NOx. We embed these emissions in the GEOS-Chem model nested over the African continent to simulate ambient concentrations of PM2.5 and determine the burden of disease (excess deaths) attributable to exposure to future fossil fuel use. We calculate 48000 avoidable deaths in 2030 (95% confidence interval: 6000-88000), mostly in South Africa (10400), Nigeria (7500), and Malawi (2400), with 3-times higher mortality rates from power plants than transport. Sensitivity of the burden of disease to either population growth or air quality varies regionally and suggests that emission mitigation strategies would be most effective in Southern Africa, whereas population growth is the main driver everywhere else.
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Contaminantes Atmosféricos , Contaminación del Aire , Electricidad , Monitoreo del Ambiente , Combustibles Fósiles , Malaui , Nigeria , Material Particulado , SudáfricaRESUMEN
BACKGROUND: This is the third paper in a 3-paper series evaluating alternative models for rapidly estimating neighborhood populations using limited survey data, augmented with aerial imagery. METHODS: Bayesian methods were used to sample the large solution space of candidate regression models for estimating population density. RESULTS: We accurately estimated the population densities and counts of 20 neighborhoods in the city of Bo, Sierra Leone, using statistical measures derived from Landsat multi-band satellite imagery. The best regression model proposed estimated the latter with an absolute median proportional error of 8.0%, while the total population of the 20 neighborhoods was estimated with an error of less than 1.0%. We also compare our results with those obtained using an empirical Bayes approach. CONCLUSIONS: Our approach provides a rapid and effective method for constructing predictive models for population densities and counts utilizing remote sensing imagery. Our results, including cross-validation analysis, suggest that masking non-urban areas in the Landsat section images prior to computing the candidate covariate regressors should further improve model generality.
Asunto(s)
Densidad de Población , Características de la Residencia , Imágenes Satelitales/métodos , Población Urbana , Ciudades/epidemiología , Humanos , Imágenes Satelitales/tendencias , Sierra Leona/epidemiología , Población Urbana/tendenciasRESUMEN
Laboratories associated with small hospitals often have limited expertise, personnel, and equipment to rapidly identify rare and emerging infectious diseases. We describe the successful use of the FilmArray system for rapid detection of Ebola virus directly from clinical samples in 6 out of 83 tested subjects in a small health care center in Sierra Leone.
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Ebolavirus/aislamiento & purificación , Fiebre Hemorrágica Ebola/diagnóstico , Técnicas de Diagnóstico Molecular/métodos , Reacción en Cadena de la Polimerasa Multiplex/métodos , Virología/métodos , Sangre/virología , Ebolavirus/genética , Hospitales , Humanos , Faringe/virología , Sierra LeonaRESUMEN
BACKGROUND: This analysis examined how the proportion of children less than 5-years-old who slept under a bed net the previous night changed during and after a national long-lasting insecticidal net (LLIN) distribution campaign in Sierra Leone in November-December 2010. METHODS: A citywide cross-sectional study in 2010-2011 interviewed the caregivers of more than 3000 under-five children from across urban Bo, Sierra Leone. Chi squared tests were used to assess change in use rates over time, and multivariate regression models were used to examine the factors associated with bed net use. RESULTS: Reported rates of last-night bed net use changed from 38.7 % (504/1304) in the months before the LLIN campaign to 21.8 % (78/357) during the week of the campaign to 75.3 % (1045/1387) in the months after the national campaign. The bed net use rate significantly increased (p < 0.01) from before the campaign to after the universal LLIN distribution campaign in all demographic, socioeconomic, and health behaviour groups, even though reported use during the campaign dropped significantly. CONCLUSION: Future malaria prevention efforts will need to promote consistent use of LLINs and address any remaining disparities in insecticide-treated bed net (ITN) use.
Asunto(s)
Transmisión de Enfermedad Infecciosa/prevención & control , Malaria/prevención & control , Mosquiteros/estadística & datos numéricos , Preescolar , Estudios Transversales , Femenino , Humanos , Lactante , Masculino , Sierra LeonaRESUMEN
BACKGROUND: The purpose of this study was to examine malaria testing practices and preferences in Bo, Sierra Leone, and to ascertain interest in and willingness to take a home-based rapid diagnostic test administered by a community health volunteer (CHV) or a trained family member rather than travelling to a clinical facility for laboratory-based testing. METHODS: A population-based, cross-sectional survey of 667 randomly-sampled rural households and 157 urban households was conducted in December 2013 and January 2014. RESULTS: Among rural residents, 69% preferred a self/family- or CHV-conducted home-based malaria test and 20% preferred a laboratory-based test (with others indicating no preference). Among urban residents, these numbers were 38% and 44%, respectively. If offered a home-based test, 28% of rural residents would prefer a self/family-conducted test and 68% would prefer a CHV-assisted test. For urban residents, these numbers were 21% and 77%. In total, 36% of rural and 63% of urban residents reported usually taking a diagnostic test to confirm suspected malaria. The most common reasons for not seeking malaria testing were the cost of testing, waiting to see if the fever resolved on its own, and not wanting to travel to a clinical facility for a test. In total, 32% of rural and 27% of urban participants were very confident they could perform a malaria test on themselves or a family member without assistance, 50% of rural and 62% of urban participants were very confident they could perform a test after training, and 56% of rural and 33% of urban participants said they would pay more for a home-based test than a laboratory-based test. CONCLUSION: Expanding community case management of malaria to include home testing by CHVs and family members may increase the proportion of individuals with febrile illnesses who confirm a positive diagnosis prior to initiating treatment.
Asunto(s)
Actitud Frente a la Salud , Servicios de Salud Comunitaria/métodos , Servicios de Salud Comunitaria/estadística & datos numéricos , Malaria/diagnóstico , Adolescente , Adulto , Agentes Comunitarios de Salud , Femenino , Conocimientos, Actitudes y Práctica en Salud , Humanos , Masculino , Persona de Mediana Edad , Juego de Reactivos para Diagnóstico , Población Rural/estadística & datos numéricos , Sierra Leona , Población Urbana/estadística & datos numéricos , Adulto JovenRESUMEN
We diagnosed 400 possible IgM-positive cases of chikungunya virus in Bo, Sierra Leone, during July 2012-January 2013 by using lateral flow immunoassays. Cases detected likely represent only a small fraction of total cases. Further laboratory testing is required to confirm this outbreak and characterize the virus.
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Infecciones por Alphavirus/epidemiología , Virus Chikungunya/inmunología , Brotes de Enfermedades , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Infecciones por Alphavirus/sangre , Infecciones por Alphavirus/diagnóstico , Anticuerpos Antivirales/sangre , Niño , Enfermedades Transmisibles Emergentes/sangre , Enfermedades Transmisibles Emergentes/diagnóstico , Enfermedades Transmisibles Emergentes/epidemiología , Femenino , Humanos , Inmunoglobulina M/sangre , Masculino , Persona de Mediana Edad , Monitorización Inmunológica , Sierra Leona/epidemiología , Adulto JovenRESUMEN
Human health depends on reliable access to safe drinking water, but in many developing countries only a limited number of wells and boreholes are available. Many of these water resources are contaminated with biological or chemical pollutants. The goal of this study was to examine water access and quality in urban Bo, Sierra Leone. A health census and community mapping project in one neighborhood in Bo identified the 36 water sources used by the community. A water sample was taken from each water source and tested for a variety of microbiological and physicochemical substances. Only 38.9% of the water sources met World Health Organization (WHO) microbial safety requirements based on fecal coliform levels. Physiochemical analysis indicated that the majority (91.7%) of the water sources met the requirements set by the WHO. In combination, 25% of these water resources met safe drinking water criteria. No variables associated with wells were statistically significant predictors of contamination. This study indicated that fecal contamination is the greatest health risk associated with drinking water. There is a need to raise hygiene awareness and implement inexpensive methods to reduce fecal contamination and improve drinking water safety in Bo, Sierra Leone.
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Estado de Salud , Contaminación del Agua/análisis , Abastecimiento de Agua/estadística & datos numéricos , Agua Potable/química , Monitoreo del Ambiente , Humanos , Medición de Riesgo , Sierra Leona , Contaminantes del Agua/análisis , Contaminación del Agua/estadística & datos numéricosRESUMEN
As of April 2010, all maternity care at government healthcare facilities in Sierra Leone is provided at no cost to patients. In late 2010, we conducted a community health census of 18 sections of the city of Bo (selected via randomized cluster sampling from 68 total sections). Among the 3421 women with a history of pregnancy who participated in the study, older women most often reported having a history of both home and hospital deliveries, while younger women showed a preference for hospital births. The proportion of lastborn children delivered at a healthcare facility increased from 71.8% of offspring 10-14 years old to 81.1% of those one to nine years old and 87.3% of infants born after April 2010. These findings suggest that the new maternal healthcare initiative has accelerated an existing trend toward a preference for healthcare facility births, at least in some urban parts of Sierra Leone.
Asunto(s)
Parto Domiciliario/tendencias , Hospitalización/tendencias , Centros de Salud Materno-Infantil/economía , Prioridad del Paciente/estadística & datos numéricos , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Política de Salud , Parto Domiciliario/estadística & datos numéricos , Hospitalización/estadística & datos numéricos , Hospitales Públicos , Humanos , Persona de Mediana Edad , Embarazo , Sierra Leona/epidemiología , Adulto JovenRESUMEN
BACKGROUND: Resource-limited tropical countries are home to numerous infectious pathogens of both human and zoonotic origin. A capability for early detection to allow rapid outbreak containment and prevent spread to non-endemic regions is severely impaired by inadequate diagnostic laboratory capacity, the absence of a "cold chain" and the lack of highly trained personnel. Building up detection capacity in these countries by direct replication of the systems existing in developed countries is not a feasible approach and instead requires "leapfrogging" to the deployment of the newest diagnostic systems that do not have the infrastructure requirements of systems used in developed countries. METHODS: A laboratory for molecular diagnostics of infectious agents was established in Bo, Sierra Leone with a hybrid solar/diesel/battery system to ensure stable power supply and a satellite modem to enable efficient communication. An array of room temperature stabilization and refrigeration technologies for reliable transport and storage of reagents and biological samples were also tested to ensure sustainable laboratory supplies for diagnostic assays. RESULTS: The laboratory demonstrated its operational proficiency by conducting an investigation of a suspected avian influenza outbreak at a commercial poultry farm at Bo using broad range resequencing microarrays and real time RT-PCR. The results of the investigation excluded influenza viruses as a possible cause of the outbreak and indicated a link between the outbreak and the presence of Klebsiella pneumoniae. CONCLUSIONS: This study demonstrated that by application of a carefully selected set of technologies and sufficient personnel training, it is feasible to deploy and effectively use a broad-range infectious pathogen detection technology in a severely resource-limited setting.
Asunto(s)
Brotes de Enfermedades/prevención & control , Gripe Aviar/diagnóstico , Laboratorios/organización & administración , Análisis por Micromatrices/métodos , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa/métodos , Animales , Comunicación , Países en Desarrollo , Brotes de Enfermedades/veterinaria , Estabilidad de Medicamentos , Diagnóstico Precoz , Suministros de Energía Eléctrica , Indicadores y Reactivos , Gripe Aviar/epidemiología , Infecciones por Klebsiella/diagnóstico , Infecciones por Klebsiella/epidemiología , Infecciones por Klebsiella/veterinaria , Personal de Laboratorio/educación , Análisis por Micromatrices/veterinaria , Técnicas de Diagnóstico Molecular/métodos , Técnicas de Diagnóstico Molecular/veterinaria , Aves de Corral , Infecciones por Pseudomonas/diagnóstico , Infecciones por Pseudomonas/epidemiología , Infecciones por Pseudomonas/veterinaria , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa/veterinaria , Sierra Leona/epidemiología , Manejo de EspecímenesRESUMEN
BACKGROUND: Spatial epidemiology is useful but difficult to apply in developing countries due to the low availability of digitized maps and address systems, accurate population distributions, and computational tools. A community-based mapping approach was used to demonstrate that participatory geographic information system (PGIS) techniques can provide information helpful for health and community development. RESULTS: The PGIS process allowed for the rapid determination of sectional (neighborhood) boundaries within the city of Bo, Sierra Leone. When combined with data about hospital laboratory visits, a catchment area for one hospital in Bo could be established. A survey of households from within the catchment area determined that the average population per household (about 6 individuals) was similar to that found in the 2004 census. However, we also found that the average house was inhabited by more than one household, for an average of 17.5 inhabitants per residential building, which is critical information to know when estimating population size using remote imagery that can detect and enumerate buildings. CONCLUSIONS: The methods developed in this paper serve as a model for the involvement of communities in the generation of municipal maps and their application to community and health concerns.
Asunto(s)
Áreas de Influencia de Salud/estadística & datos numéricos , Participación de la Comunidad/métodos , Mapas como Asunto , Países en Desarrollo , Métodos Epidemiológicos , Composición Familiar , Sistemas de Información Geográfica , Humanos , Laboratorios de Hospital/estadística & datos numéricos , Sierra LeonaRESUMEN
OBJECTIVE: The aim of this study was to determine the prevalence of hepatitis B surface antigen (HBsAg) among febrile individuals tested at Mercy Hospital Research Laboratory (MHRL) in Bo, Sierra Leone. RESULTS: A total of 860 febrile individuals ages 5 years and older were tested by MHRL between July 2012 and June 2013 with a Standard Diagnostics Bioline HBsAg rapid diagnostic test. The overall HBsAg prevalence rate was 13.7%, including a rate of 15.5% among males and 12.6% among females. The HBsAg rate did not differ by child or adult age group (p > 0.5). The prevalence rate in Bo was similar to the 11-15% HBsAg prevalence rates reported in the past decade from other studies across West Africa. Scaling up the infant hepatitis B vaccination program in Sierra Leone will be important for reducing the future burden of disease and premature death attributable to chronic viral hepatitis B disease.
Asunto(s)
Fiebre/sangre , Antígenos de Superficie de la Hepatitis B/sangre , Hepatitis B Crónica/prevención & control , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Niño , Preescolar , Femenino , Humanos , Masculino , Persona de Mediana Edad , Prevalencia , Estudios Seroepidemiológicos , Sierra Leona/epidemiología , Adulto JovenRESUMEN
Malaria remains a significant cause of morbidity and mortality in West Africa, but the contribution of other vector-borne infections (VBIs) to the burden of disease has been understudied. We used rapid diagnostic tests (RDTs) for three VBIs to test blood samples from 1,795 febrile residents of Bo City, Sierra Leone, over a 1-year period in 2012-2013. In total, 24% of the tests were positive for malaria, fewer than 5% were positive for markers of dengue virus infection, and 39% were positive for IgM directed against chikungunya virus (CHIKV) or a related alphavirus. In total, more than half (55%) of these febrile individuals tested positive for at least one of the three VBIs, which highlights the very high burden of vector-borne diseases in this population. The prevalence of positives on the Chikungunya IgM and dengue tests did not vary significantly with age (P > 0.36), but higher rates of malaria were observed in children < 15 years of age (P < 0.001). Positive results on the Chikungunya IgM RDTs were moderately correlated with rainfall (r2 = 0.599). Based on the high prevalence of positive results on the Chikungunya IgM RDTs from individuals Bo and its environs, there is a need to examine whether an ecological shift toward a greater burden from CHIKV or related alphaviruses is occurring in other parts of Sierra Leone or the West African region.
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Fiebre Chikungunya/epidemiología , Dengue/epidemiología , Malaria/epidemiología , Vigilancia de la Población , Adolescente , Adulto , Animales , Fiebre Chikungunya/transmisión , Niño , Culicidae , Dengue/transmisión , Femenino , Humanos , Insectos Vectores , Malaria/transmisión , Masculino , Persona de Mediana Edad , Sierra Leona/epidemiología , Adulto JovenRESUMEN
OBJECTIVE: The goal of this study was to examine the prevalence of HIV among febrile patients seeking care in Mercy Hospital, Bo, Sierra Leone, in 2012-2013. RESULTS: A total of 1207 febrile persons were tested for HIV with Determine™ and SD Bioline rapid diagnostic tests kits that detect the presence of HIV antibodies and HIV p24 antigens. The overall prevalence of HIV among the tested patients was 8.9%, which is considerably higher than the < 2% prevalence of HIV reported previously in the general population. While these results are not sufficient to prove a causal relationship, the obtained data imply that HIV positive individuals may be more likely to suffer from febrile infectious diseases than individuals without HIV infection. Increasing the availability and use of HIV testing services will allow antiretroviral therapy to be accessed in a timely manner and improve health status among people living with HIV.
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Biomarcadores/sangre , Fiebre/sangre , Fiebre/complicaciones , Infecciones por VIH/sangre , Infecciones por VIH/complicaciones , Adolescente , Adulto , Niño , Femenino , Humanos , Masculino , Persona de Mediana Edad , Prevalencia , Sierra Leona , Adulto JovenRESUMEN
OBJECTIVES: To examine the diversity of the health-care providers in urban Bo, Sierra Leone, identify the types of health-care facilities preferred by women for fevers, and analyze the road network distances from homes to preferred health-care providers. METHODS: A population-based random sampling method was used to recruit 2419 women from Bo. A geographic information system was used to measure the road distance from each woman's home to her preferred provider. RESULTS: Preferred health-care providers for acute febrile illnesses (commonly referred to as "malaria" in the study communities) were hospitals (62.3 %), clinics (12.6 %), and pharmacies (12.4 %). Participants lived a median distance of 0.6 km from the nearest provider, but on average each woman lived 2.2 km one-way from her preferred provider. Women living farther from the city center had preferred providers significantly farther from home than women living downtown. CONCLUSIONS: The diverse health-care marketplace in Bo allows women to select clinical facilities from across the city. Most women prefer a malaria care provider farther from home than they could comfortably walk when ill.
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Accesibilidad a los Servicios de Salud/estadística & datos numéricos , Aceptación de la Atención de Salud/estadística & datos numéricos , Prioridad del Paciente/estadística & datos numéricos , Viaje/estadística & datos numéricos , Población Urbana/estadística & datos numéricos , Adolescente , Adulto , Instituciones de Atención Ambulatoria/estadística & datos numéricos , Femenino , Sistemas de Información Geográfica , Personal de Salud/estadística & datos numéricos , Hospitales/estadística & datos numéricos , Humanos , Malaria/terapia , Persona de Mediana Edad , Servicios Farmacéuticos/estadística & datos numéricos , Sierra Leona , Adulto JovenRESUMEN
There is a need for better estimators of population size in places that have undergone rapid growth and where collection of census data is difficult. We explored simulated estimates of urban population based on survey data from Bo, Sierra Leone, using two approaches: (1) stratified sampling from across 20 neighborhoods and (2) stratified single-stage cluster sampling of only four randomly-sampled neighborhoods. The stratification variables evaluated were (a) occupants per individual residence, (b) occupants per neighborhood, and (c) residential structures per neighborhood. For method (1), stratification variable (a) yielded the most accurate re-estimate of the current total population. Stratification variable (c), which can be estimated from aerial photography and zoning type verification, and variable (b), which could be ascertained by surveying a limited number of households, increased the accuracy of method (2). Small household-level surveys with appropriate sampling methods can yield reasonably accurate estimations of urban populations.
Asunto(s)
Ciudades , Densidad de Población , Características de la Residencia , Población Urbana/estadística & datos numéricos , Análisis por Conglomerados , Simulación por Computador , Humanos , Tamaño de la Muestra , Sierra Leona , Encuestas y Cuestionarios , IncertidumbreRESUMEN
ETHNOPHARMACOLOGICAL RELEVANCE: Most adults in West Africa treat acute febrile illnesses with local herbs, but the patterns of herbs used for malaria have not been recently described in Sierra Leone. MATERIALS AND METHODS: We used a population-based cross-sectional approach to interview 810 randomly-sampled rural and urban adult residents of Bo, Sierra Leone, in December 2013 and January 2014 about their use of herbal remedies when they suspect they have malaria. RESULTS: In total, 55% of the participants reported taking one or more of seven herbs to treat symptoms of malaria. Among herb users, the most commonly used anti-malarial herbs were Moringa oleifera (moringa, 52%) and Sarcocephalus latifolius (yumbuyambay, 50%). The other herbs used included Senna siamea (shekutoure, 18%), Cassia sieberiana (gbangba, 18%), Uvaria afzelii (gone-botai, 14%), Morinda chrysorhiza (njasui, 14%), and Craterispermum laurinum (nyelleh, 7%). Combination herbal therapy was common, with 37% of herb users taking two or more herbs together when ill with suspected malaria. CONCLUSIONS: Indigenous medical knowledge about herbal remedies and combinations of local herbs remains an integral part of malaria case management in Sierra Leone.
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Antimaláricos/uso terapéutico , Malaria/tratamiento farmacológico , Adolescente , Adulto , Antimaláricos/química , Estudios Transversales , Etnofarmacología/métodos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Fitoterapia/métodos , Plantas Medicinales/química , Población Rural , Sierra Leona , Adulto JovenRESUMEN
This study demonstrates the use of bootstrap methods to estimate the total population of urban and periurban areas using satellite imagery and limited survey data. We conducted complete household surveys in 20 neighborhoods in the city of Bo, Sierra Leone, which collectively were home to 25,954 persons living in 1,979 residential structures. For five of those twenty sections, we quantized the rooftop areas of structures extracted from satellite images. We used bootstrap statistical methods to estimate the total population of the pooled sections, including the associated uncertainty intervals, as a function of sample size. Evaluations based either on rooftop area per person or on the mean number of occupants per residence both converged on the true population size. We demonstrate with this simulation that demographic surveys of a relatively small proportion of residences can provide a foundation for accurately estimating the total population in conjunction with aerial photographs.
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Demografía , Densidad de Población , Imágenes Satelitales/métodos , Incertidumbre , Simulación por Computador , Bases de Datos como Asunto , Geografía , Humanos , Características de la Residencia , Tamaño de la Muestra , Sierra LeonaRESUMEN
The factors that influence the selection of a healthcare provider once the decision to seek care has been made can be summarized using a triad of cost, location and reputation. The goal of this study was to identify which of these factors is the primary consideration when women in urban Bo, Sierra Leone, select a healthcare provider for themselves or their children. We interviewed 1091 mothers during a household census of two neighbourhoods of Bo in April 2010. Reputation was the top consideration for about half of the women, cost was the second most common priority, and the location of the healthcare facility was the primary consideration for less than 7% of the participants. The majority of women said they would select a new provider if cost was not a barrier. Socioeconomic characteristics were not significant predictors of whether cost, location or reputation was selected as the highest-ranked consideration. This evidence for the importance of reputation in healthcare decision-making even in low-resource areas highlights the need for health systems to address issues of quality and responsiveness, and not just cost, in order to increase access to and utilization of health services.