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Non-communicable respiratory disease in Malawi: a systematic review and meta-analysis

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Nightingale, Rebecca, Jary, Hannah, Meghji, Jamilah, Rylance, Sarah, Jones, Masiye, Chiumia, Hastings, Rylance, Jamie ORCID: https://orcid.org/0000-0002-2323-3611, Mortimer, Kevin ORCID: https://orcid.org/0000-0002-8118-8871 and Lesosky, Maia (2020) 'Non-communicable respiratory disease in Malawi: a systematic review and meta-analysis'. Malawi Medical Journal, Vol 32, Issue 2, pp. 64-73.

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Abstract

Background
Non-communicable respiratory diseases are important contributors to morbidity and mortality in sub-Saharan African countries such as Malawi.

Aim
To conduct a systematic review of the available literature relating to chronic respiratory disease in Malawi.

Methods
We conducted a systematic protocol-driven literature search of key scientific databases including Scopus and Medline. Papers were independently assessed for eligibility by two authors and included if they reported objective measures (including self-reported standard symptoms) of chronic respiratory disease and were conducted in Malawi. A meta-analysis of available estimates was then conducted. We re-analysed data from three of these studies in a secondary data analysis to allow for between-study comparisons.

Results
Our search identified 393 papers of which 17 (5 involving children and 12 involving adults) met the inclusion criteria. Wheeze was the symptom most frequently reported in children in the community (12.1%), hospital (11.2%) and HIV clinic (8.1%) settings. Cough was the symptom most frequently reported by adults in the community (3–18%). Spirometric abnormalities varied substantially between studies. For example, in adults, airflow obstruction varied between 2.3% and 20% and low forced vital capacity (varied between 2.7% and 52.8%.

Conclusion
We identified a high burden of chronic respiratory symptoms and abnormal spirometry (particularly low FVC) within paediatric and adult populations in Malawi. The estimates for country-wide burden related to this disease were limited by the heterogeneity of the methods used to assess symptoms and spirometry. There is an urgent need to develop a better understanding of the determinants and natural history of non-communicable respiratory disease across the life-course in Malawi.

Item Type: Article
Subjects: WA Public Health > Health Problems of Special Population Groups > WA 395 Health in developing countries
WF Respiratory System > WF 140 Diseases of the respiratory system (General)
WF Respiratory System > WF 20 Research (General)
Faculty: Department: Clinical Sciences & International Health > Clinical Sciences Department
Digital Object Identifer (DOI): https://doi.org/10.4314/mmj.v32i2.3
Depositing User: Debbie Jenkins
Date Deposited: 02 Jul 2020 13:50
Last Modified: 03 Aug 2020 10:01
URI: https://archive.lstmed.ac.uk/id/eprint/14845

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