Background
Asthma remains highly prevalent, with more severe symptoms in low-income to middle-income countries (LMICs) compared with high-income countries. Identifying risk factors for severe asthma symptoms can assist with improving outcomes. We aimed to determine the prevalence, severity and ris...k factors for asthma in adolescents in an LMIC.
Methods
A cross-sectional survey using the Global Asthma Network written and video questionnaires was conducted in adolescents aged 13 and 14 from randomly selected schools in Durban, South Africa, between May 2019 and June 2021.
Results
A total of 3957 adolescents (51.9% female) were included. The prevalence of lifetime, current and severe asthma was 24.6%, 13.7% and 9.1%, respectively. Of those with current and severe asthma symptoms; 38.9% (n=211/543) and 40.7% (n=147/361) had doctor-diagnosed asthma; of these, 72.0% (n=152/211) and 70.7% (n=104/147), respectively, reported using inhaled medication in the last 12 months. Short-acting beta agonists (80.4%) were more commonly used than inhaled corticosteroids (13.7%). Severe asthma was associated with: fee-paying school quintile (adjusted OR (CI)): 1.78 (1.27 to 2.48), overweight (1.60 (1.15 to 2.22)), exposure to traffic pollution (1.42 (1.11 to 1.82)), tobacco smoking (2.06 (1.15 to 3.68)), rhinoconjunctivitis (3.62 (2.80 to 4.67)) and eczema (2.24 (1.59 to 3.14)), all p<0.01.
Conclusion
Asthma prevalence in this population (13.7%) is higher than the global average (10.4%). Although common, severe asthma symptoms are underdiagnosed and associated with atopy, environmental and lifestyle factors. Equitable access to affordable essential controller inhaled medicines addressing the disproportionate burden of asthma is needed in this setting.
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This article was published on December 10, 2020, and updated on December 16, 2020, at NEJM.org. DOI: 10.1056/NEJMoa2034577
Cochrane Database Syst Rev. 2016 Jul 1; (6): 1–61 -Published online 2016 July 1
Vol. 7, No. 1 (2018) | ISSN 2166-7403 (online) DOI 10.5195/cajgh.2018.295 | http://cajgh.pitt.edu
Руководство ВОЗ по политике и практике информирования о рисках при чрезвычайных ситуациях (ИРЧС)
Research
Emerging Infectious Diseases Vol. 12, No. 5, May 2006
Overcoming Barriers to TB Control
Training Curriculum
August 2011
Available in English, French and Spanish
Q 4: Is behavioural activation better (more effective than/as safe as) than treatment as usual in adults with depressive episode/disorder?brief, structured psychological treatment in non-specialist health care settings better (more effective than/as safe as) than treatment as usual in people with de...pressive episode/disorder?
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These guidelines form part of efforts to institutionalise the prevention and containment of antimicrobial resistance (AMR) in health care facilities in South Africa, as outlined in the Antimicrobial Resistance Strategic Framework and Implementation Plan. The focus of these guidelines is on two inte...rrelated aspects of prevention of healthcare associated infections (HAIs) and their spread; and the application of antimicrobial stewardship (AMS) practices at hospital level.
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Agriculture is highly exposed to climate change, as farming activities directly depend on climatic conditions. Agriculture also contributes to climate change through the release of greenhouse gases into the atmosphere. Two powerful greenhouse gases are by-products of agricultural activity:
Methan...e (CH4) – from livestock digestion processes and stored animal manure;
Nitrous oxide (N2O) – from organic and mineral nitrogen fertilisers.
However, agriculture can also contribute to climate change mitigation by reducing greenhouse gas emissions and by sequestering carbon while maintaining food production.
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This paper brings together lessons from interviews with humanitarians and local responders, as well as existing literature, about the use of quarantine in urban environments during the humanitarian response to the Ebola Crisis
MMWR Morbidity and Mortality Weekly Report December 19, 2014 / 63(50);1205-1206
Draft Working Discussion Paper