- Title
- Chronic noncommunicable diseases in 6 low- and middle-income countries: findings from wave 1 of the world health organization's Study on Global Ageing and Adult Health (SAGE)
- Creator
- Arokiasamy, Perianayagam; Uttamacharya,; Wu, Fan; Guo, Yanfei; Zheng, Yang; Kalula, Sebastian Zimba; Rodríguez, Aarón Salinas; Espinoza, Betty Manrique; Liebert, Melissa A.; Eick, Geeta; Sterner, Kirstin N.; Barrett, Tyler M.; Kowal, Paul; Byles, Julie; Capistrant, Benjamin D.; Gildner, Theresa E.; Thiele, Elizabeth; Biritwum, Richard B.; Yawson, Alfred E.; Mensah, George; Maximova, Tamara
- Relation
- American Journal of Epidemiology Vol. 185, Issue 6, p. 414-428
- Publisher Link
- http://dx.doi.org/10.1093/aje/kww125
- Publisher
- Oxford University Press
- Resource Type
- journal article
- Date
- 2017
- Description
- In this paper, we examine patterns of self-reported diagnosis of noncommunicable diseases (NCDs) and prevalences of algorithm/measured test-based, undiagnosed, and untreated NCDs in China, Ghana, India, Mexico, Russia, and South Africa. Nationally representative samples of older adults aged ≥50 years were analyzed from wave 1 of the World Health Organization's Study on Global Ageing and Adult Health (2007-2010; n = 34,149). Analyses focused on 6 conditions: Angina, arthritis, asthma, chronic lung disease, depression, and hypertension. Outcomes for these NCDs were: 1) self-reported disease, 2) algorithm/measured test-based disease, 3) undiagnosed disease, and 4) untreated disease. Algorithm/measured test-based prevalence of NCDs was much higher than self-reported prevalence in all 6 countries, indicating underestimation of NCD prevalence in low- and middle-income countries. Undiagnosed prevalence of NCDs was highest for hypertension, ranging from 19.7% (95% confidence interval (CI): 18.1, 21.3) in India to 49.6% (95% CI: 46.2, 53.0) in South Africa. The proportion untreated among all diseases was highest for depression, ranging from 69.5% (95% CI: 57.1, 81.9) in South Africa to 93.2% (95% CI: 90.1, 95.7) in India. Higher levels of education and wealth significantly reduced the odds of an undiagnosed condition and untreated morbidity. A high prevalence of undiagnosed NCDs and an even higher proportion of untreated NCDs highlights the inadequacies in diagnosis and management of NCDs in local health-care systems.
- Subject
- chronic disease; diagnosis; low- and middle-income countries; non-communicable diseases; untreated diseases
- Identifier
- http://hdl.handle.net/1959.13/1399894
- Identifier
- uon:34696
- Identifier
- ISSN:0002-9262
- Language
- eng
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