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1.
BMC Public Health ; 24(1): 986, 2024 Apr 08.
Artículo en Inglés | MEDLINE | ID: mdl-38589826

RESUMEN

BACKGROUND: In Sierra Leone, adolescents are increasingly engaging in risky activities, including cannabis use, which can lead to substance abuse, poor academic performance, and psychotic symptoms. This study aims to investigate the prevalence and associated factors of cannabis use among school-going adolescents in the country. METHOD: Data for the study was sourced from the 2017 Sierra Leone Global School-based Student Health Survey (GSHS), a nationally representative survey conducted among adolescents aged 10-19 years using a multistage sampling methodology. A weighted sample of 1,467 adolescents in Sierra Leone was included in the study. The study utilised bivariate and multivariable logistic regression analysis to identify factors linked to cannabis use, presenting results using adjusted odds ratios and 95% confidence intervals. RESULTS: The prevalence of cannabis use was 5.1% [3.0,8.6] among school-going adolescents in Sierra Leone. School-going adolescents who attempted suicide [aOR = 6.34, 95% CI = 1.71-23.45], used amphetamine [aOR = 15.84, 95% CI = 7.94-31.62] and were involved in sexual risk behaviour [aOR = 5.56, 95% CI = 2.18-14.20] were more likely to be associated with cannabis use. CONCLUSION: In Sierra Leone, a small but non-trivial minority of students use cannabis. Ever-used amphetamines or methamphetamines, suicidal attempts, and sexual risk behaviour were the factors associated with cannabis use in Sierra Leone. The development of school-based health intervention programmes is crucial to address the risk factors associated with cannabis use among school-going adolescents.


Asunto(s)
Cannabis , Humanos , Adolescente , Sierra Leona/epidemiología , Factores de Riesgo , Estudiantes , Instituciones Académicas , Prevalencia
2.
Heliyon ; 10(3): e25502, 2024 Feb 15.
Artículo en Inglés | MEDLINE | ID: mdl-38356517

RESUMEN

Paracetamol is a widely used over-the-counter drug for managing fever and pain, but its quality may vary among different brands, especially in low- and middle-income countries, where counterfeit and substandard medicines are prevalent. This study evaluated the physicochemical properties of fifteen brands of 500 mg paracetamol tablets sold in various pharmacies in Freetown, Sierra Leone using identification tests, friability tests, assay, dissolution tests, and mass variation. The results showed that three brands were not registered with the Pharmacy Board of Sierra Leone, and two brands did not meet the requirement for labelling (no manufacturing date). All the brands met the requirement for mass variation, friability tests and assays. The percentage assay of the different brands ranged from 96.17 %w/w to 101.97 %w/w. However, two brands did not meet the specification for dissolution, with P012 releasing about 21.23 % ± 5.76 of the drug within 45min. Most of the paracetamol brands evaluated met the physicochemical test specification. However, two brands failed the dissolution test, two brands did not meet the labelling requirement and three brands were identified as unregistered products with the National Medicines Regulatory Authority in Sierra Leone. This study underscores the necessity of enhancing monitoring and post-market surveillance of pharmaceuticals in Sierra Leone to ensure they comply with regulatory requirements.

3.
Viruses ; 16(4)2024 04 22.
Artículo en Inglés | MEDLINE | ID: mdl-38675988

RESUMEN

Sosuga virus (SOSV), a rare human pathogenic paramyxovirus, was first discovered in 2012 when a person became ill after working in South Sudan and Uganda. During an ecological investigation, several species of bats were sampled and tested for SOSV RNA and only one species, the Egyptian rousette bat (ERBs; Rousettus aegyptiacus), tested positive. Since that time, multiple other species have been sampled and ERBs in Uganda have continued to be the only species of bat positive for SOSV infection. Subsequent studies of ERBs with SOSV demonstrated that ERBs are a competent host for SOSV and shed this infectious virus while exhibiting only minor infection-associated pathology. Following the 2014 Ebola outbreak in West Africa, surveillance efforts focused on discovering reservoirs for zoonotic pathogens resulted in the capture and testing of many bat species. Here, SOSV RNA was detected by qRT-PCR only in ERBs captured in the Moyamba District of Sierra Leone in the central region of the country. These findings represent a substantial range extension from East Africa to West Africa for SOSV, suggesting that this paramyxovirus may occur in ERB populations throughout its sub-Saharan African range.


Asunto(s)
Quirópteros , Animales , Quirópteros/virología , Sierra Leona/epidemiología , Infecciones por Paramyxoviridae/veterinaria , Infecciones por Paramyxoviridae/virología , Infecciones por Paramyxoviridae/epidemiología , ARN Viral/genética , Filogenia , Reservorios de Enfermedades/virología , Humanos
4.
PLOS Glob Public Health ; 3(12): e0002498, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38134001

RESUMEN

Adolescent bullying victimization is recognized as a public health and mental health problem in many countries. However, data on bullying victimization's prevalence and risk factors is scarce in sub-Saharan Africa Sierra Leone. This research aimed to determine bullying victimization prevalence and its associated factors among Sierra Leonean school-going adolescents. The Sierra Leone 2017 Global School-based Health Survey (GSHS) dataset was analyzed. The outcome variable was the respondent's self-report of bullying victimization ("How many days in the previous 30 days were you bullied?"). Descriptive, Pearson chi-square and binary logistic regression analyses were conducted. The regression analysis yielded adjusted odds ratios (aOR) with 95% confidence intervals (CIs) and a significance level of p 0.05. Bullying victimization was prevalent among 48.7% of the in-school adolescents. Adolescents who drank alcohol [aOR = 2.48, 95% CI = 1.50-4.10], who reported feelings of loneliness [aOR = 1.51, 95% CI = 1.07-2.14] and who had attempted suicide [aOR = 1.72, 95% CI = 1.03-2.87] were also more likely to be bullied. Also, school truancy [aOR = 1.53, 95% CI = 1.24-1.88] among teenagers was associated with an increased risk of being bullied. Our findings suggest that bullying is a widespread problem among Sierra Leonean school-aged youth, and alcohol drinking, loneliness, suicide attempt and school truancy are potential risk factors. In light of the aforementioned causes of bullying in schools, policymakers and school administrators in Sierra Leone need to develop and execute anti-bullying policies and initiatives that target the underlying risk factors of bullying among teenagers.

5.
World J Pediatr Surg ; 6(1): e000473, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38328392

RESUMEN

Background: Sub-Saharan Africa experiences a disproportionate amount of pediatric surgical disease, with 80% of children lacking access to timely, affordable, and safe surgical care. This study aims to characterize the burden of disease and outcomes of pediatric surgical conditions at Connaught Hospital, the main pediatric referral hospital in Sierra Leone. Methods: This retrospective and hospital-based study included children up to 15 years old who were operated on between 2015 and June 2016 at Connaught Hospital in Freetown, Sierra Leone. Descriptive and inferential statistics were used to characterize the distribution of disease and compare all variables against age category and mortality. Findings: A total of 215 patients were included in this study of which 72.5% (n=132) were male and 27.5% (n=50) were female. Most of the patients were diagnosed with congenital anomalies (60.9%; n=131). However, infection was the leading diagnosis (60.5%; n=23) among patients aged 5-10 years (n=38). Inguinal hernia was the leading condition (65.0%; n=85) among patients presenting with a congenital anomaly. The condition with the highest mortality was infections (17.0%; n=8), followed by other conditions (9.1%; n=2) and congenital anomalies (3.1%; n=4). Based on the results of this study, over 7000 children with inguinal hernias remain untreated annually in Freetown, Sierra Leone. Conclusion: This study quantifies the burden of surgical disease among children, a foundational step toward the prioritization of pediatric surgical care in national health agendas, the development of evidence-based interventions, and the strategic allocation of resources in Sierra Leone.

6.
Surgery ; 174(3): 567-573, 2023 09.
Artículo en Inglés | MEDLINE | ID: mdl-37385869

RESUMEN

BACKGROUND: Out-of-pocket healthcare costs leading to catastrophic healthcare expenditure pose a financial threat for families of children undergoing surgery in Sub-Saharan African countries, where universal healthcare coverage is often insufficient. METHODS: A prospective clinical and socioeconomic data collection tool was used in African hospitals with dedicated pediatric operating rooms installed philanthropically. Clinical data were collected via chart review and socioeconomic data from families. The primary indicator of economic burden was the proportion of families with catastrophic healthcare expenditures. Secondary indicators included the percentage who borrowed money, sold possessions, forfeited wages, and lost a job secondary to their child's surgery. Descriptive statistics and multivariate logistic regression were performed to identify predictors of catastrophic healthcare expenditure. RESULTS: In all, 2,296 families of pediatric surgical patients from 6 countries were included. The median annual income was $1,000 (interquartile range 308-2,563), whereas the median out-of-pocket cost was $60 (interquartile range 26-174). Overall, 39.9% (n = 915) families incurred catastrophic healthcare expenditure, 23.3% (n = 533) borrowed money, 3.8% (n = 88%) sold possessions, 26.4% (n = 604) forfeited wages, and 2.3% (n = 52) lost a job because of the child's surgery. Catastrophic healthcare expenditure was associated with older age, emergency cases, need for transfusion, reoperation, antibiotics, and longer length of stay, whereas the subgroup analysis found insurance to be protective (odds ratio 0.22, P = .002). CONCLUSION: A full 40% of families of children in sub-Saharan Africa who undergo surgery incur catastrophic healthcare expenditure, shouldering economic consequences such as forfeited wages and debt. Intensive resource utilization and reduced insurance coverage in older children may contribute to a higher likelihood of catastrophic healthcare expenditure and can be insurance targets for policymakers.


Asunto(s)
Gastos en Salud , Pobreza , Humanos , Niño , Estudios Prospectivos , Renta , África del Sur del Sahara
7.
Ethiop J Health Sci ; 32(5): 1043-1046, 2022 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-36262699

RESUMEN

Background: Mature colonic teratomas are rare tumors and no case, to the best of our knowledge, has been reported from the African continent. In addition, some pedunculated teratomas in the colon have been treated by endoscopic polypectomy and classified as primary teratoma of the colon. We report a case of a distinct intra sigmoid pedunculated teratoma originating from the retroperitoneum of a 4-year-old African girl and we highlight the potential for misclassification of primary origin of endoscopically removed polypoid teratomas in the colon. Case Presentation: A 4 year-old black African female child who presented with abdominal pain and hematochezia. On clinical assessment, she was found to be anaemic and to have a sigmoid colon mass. At surgery, there was a mobile mass within the lumen of sigmoid colon and the mass was fixed to the retroperitoneum by a stalk of tissue. Pathologist's review of the resected sigmoid segment showed a pedunculated intra-sigmoid mass with the stalk traversing the wall of the colon. The mass was histologically proven a mature solid teratoma. Conclusions: This, to the best of our knowledge, is the first report of intra sigmoid teratoma from the African continent. It highlights the potential for misclassification of endoscopically resected colonic teratomas.


Asunto(s)
Pólipos del Colon , Teratoma , Preescolar , Femenino , Humanos , Abdomen , Colon Sigmoide/cirugía , Colon Sigmoide/patología , Pólipos del Colon/complicaciones , Pólipos del Colon/diagnóstico , Pólipos del Colon/cirugía , Hemorragia Gastrointestinal/etiología , Hemorragia Gastrointestinal/cirugía , Hemorragia Gastrointestinal/patología , Teratoma/complicaciones , Teratoma/diagnóstico , Teratoma/cirugía
8.
Artículo en Inglés | MEDLINE | ID: mdl-36483422

RESUMEN

Objective: Despite the impact of inappropriate prescribing on antibiotic resistance, data on surgical antibiotic prophylaxis in sub-Saharan Africa are limited. In this study, we evaluated antibiotic use and consumption in surgical prophylaxis in 4 hospitals located in 2 geographic regions of Sierra Leone. Methods: We used a prospective cohort design to collect data from surgical patients aged 18 years or older between February and October 2021. Data were analyzed using Stata version 16 software. Results: Of the 753 surgical patients, 439 (58.3%) were females, and 723 (96%) had received at least 1 dose of antibiotics. Only 410 (54.4%) patients had indications for surgical antibiotic prophylaxis consistent with local guidelines. Factors associated with preoperative antibiotic prophylaxis were the type of surgery, wound class, and consistency of surgical antibiotic prophylaxis with local guidelines. Postoperatively, type of surgery, wound class, and consistency of antibiotic use with local guidelines were important factors associated with antibiotic use. Of the 2,482 doses administered, 1,410 (56.8%) were given postoperatively. Preoperative and intraoperative antibiotic use was reported in 645 (26%) and 427 (17.2%) cases, respectively. The most commonly used antibiotic was ceftriaxone 949 (38.2%) with a consumption of 41.6 defined daily doses (DDD) per 100 bed days. Overall, antibiotic consumption was 117.9 DDD per 100 bed days. The Access antibiotics had 72.7 DDD per 100 bed days (61.7%). Conclusions: We report a high rate of antibiotic consumption for surgical prophylaxis, most of which was not based on local guidelines. To address this growing threat, urgent action is needed to reduce irrational antibiotic prescribing for surgical prophylaxis.

9.
Nat Commun ; 11(1): 510, 2020 01 24.
Artículo en Inglés | MEDLINE | ID: mdl-31980636

RESUMEN

Marburg virus (MARV) causes sporadic outbreaks of severe Marburg virus disease (MVD). Most MVD outbreaks originated in East Africa and field studies in East Africa, South Africa, Zambia, and Gabon identified the Egyptian rousette bat (ERB; Rousettus aegyptiacus) as a natural reservoir. However, the largest recorded MVD outbreak with the highest case-fatality ratio happened in 2005 in Angola, where direct spillover from bats was not  shown. Here, collaborative studies by the Centers for Disease Control and Prevention, Njala University, University of California, Davis USAID-PREDICT, and the University of Makeni identify MARV circulating in ERBs in Sierra Leone. PCR, antibody and virus isolation data from 1755 bats of 42 species shows active MARV infection in approximately 2.5% of ERBs. Phylogenetic analysis identifies MARVs that are similar to the Angola strain. These results provide evidence of MARV circulation in West Africa and demonstrate the value of pathogen surveillance to identify previously undetected threats.


Asunto(s)
Quirópteros/virología , Marburgvirus/aislamiento & purificación , África Occidental , Animales , Cuevas , Genoma Viral , Geografía , Funciones de Verosimilitud , Enfermedad del Virus de Marburg/virología , Marburgvirus/clasificación , Marburgvirus/genética , Filogenia , Análisis de Secuencia de ADN , Proteínas Virales/metabolismo
10.
PLoS One ; 13(10): e0203603, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-30289915

RESUMEN

Lebbiea grandiflora (Podostemaceae), a rheophytic herb from the Sewa River rapids in Sierra Leone, is described as a new species. It is the first new African genus of Podostemaceae published for 30 years. First collected in May 2017, the species is assessed as Critically Endangered using the IUCN 2012 standard. It is on the edge of extinction with a small population at a single site threatened by deposition of gravel and sand from alluvial gold and diamond mining upstream, and a planned hydro-electric dam. The new genus is unique in Podostemaceae in a) its highly developed and robust style-stigma structure in which the bases of the two style-stigmas unite to form a bifurcate funneliform-cylindrical structure, with a reflexed, blade-like apex that extends half-way around the perimeter of the ovary-fruit towards the base of the ovary-fruit, b) a specialised andropodium, with robust, self-supporting capacity, having differentiated thickened central, and angled, thinner marginal areas (in other Podostemaceae the andropodial structures are undifferentiated), c) the pillar-like haptera which completely elevate the crustose root above the substrate. Lebbiea is placed in Podostemoideae, necessitating amplification of the delimitation of that subfamily in which it is additionally unique in having the foliose tepals characteristic of the basal subfamilies Weddellinoideae and Tristichoideae.


Asunto(s)
Evolución Biológica , Extinción Biológica , Malpighiales/crecimiento & desarrollo , Filogenia , Magnoliopsida , Malpighiales/clasificación , Hojas de la Planta/crecimiento & desarrollo , Raíces de Plantas/crecimiento & desarrollo , Sierra Leona
11.
Int J Hypertens ; 2017: 8196362, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28840040

RESUMEN

We report on the first survey of hypertension in undergraduates in Sierra Leone. Levels of hypertension (12%) and obesity (4%) appear low compared to the general population but given the rapid increase of both and the expectation that many graduates will enter the formal employment sector and a sedentary lifestyle, there is still cause for concern. We measured their BMI (body mass index) and used a questionnaire to investigate demographic and lifestyle choices. In agreement with most authorities, we found that BMI and age were statistically significant predictors of systolic and diastolic blood pressure but that the explanatory power was low (r = 0.21 to 0.27). Men may be more sensitive than women to an increase in BMI on blood pressure (p < 0.1). We failed to find statistically significant relationships with ethnicity, religion, stress, course of study, levels of physical activity, diet, smoking, or consumption of caffeine and alcohol. Family history of hypertension, consumption of red palm oil, and self-diagnosed attacks of typhoid fever were close to conventional levels of significance (p < 0.1). We intend to use this as a baseline for longitudinal studies to assess risks and suggest appropriate public health action.

12.
PLoS One ; 11(4): e0152110, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27049519

RESUMEN

Croton scarciesii (Euphorbiaceae-Crotonoideae), a rheophytic shrub from West Africa, is shown to have been misplaced in Croton for 120 years, having none of the diagnostic characters of that genus, but rather a set of characters present in no known genus of the family. Pollen analysis shows that the new genus Karima belongs to the inaperturate crotonoid group. Analysis of a concatenated molecular dataset combining trnL-F and rbcL sequences positioned Karima as sister to Neoholstia from south eastern tropical Africa in a well-supported clade comprised of genera of subtribes Grosserineae and Neoboutonieae of the inaperturate crotonoid genera. Several morphological characters support the relationship of Karima with Neoholstia, yet separation is merited by numerous characters usually associated with generic rank in Euphorbiaceae. Quantitative ecological data and a conservation assessment supplement illustrations and descriptions of the taxon.


Asunto(s)
Euphorbiaceae/genética , Genes de Plantas , África Occidental , Euphorbiaceae/clasificación , Microscopía Electrónica de Rastreo , Filogenia , Polen/ultraestructura
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