Indicators of optimal diabetes care and burden of diabetes complications in Africa: a systematic review and meta-analysis.

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Kibirige, D; Chamba, N; Andia-Biraro, I; Kilonzo, K; Laizer, SN; Sekitoleko, I; Kyazze, AP; Ninsiima, S; Ssekamatte, P; Bongomin, F; et al. Kibirige, D; Chamba, N; Andia-Biraro, I; Kilonzo, K; Laizer, SN; Sekitoleko, I; Kyazze, AP; Ninsiima, S; Ssekamatte, P; Bongomin, F; Mrema, LE; Olomi, W; Mbunda, TD; Ntinginya, NE; Sabi, I; Sharples, K; Hill, P; Te Brake, L; VandeMaat, J; vanCrevel, R; Critchley, JA; PROTID consortium (2022) Indicators of optimal diabetes care and burden of diabetes complications in Africa: a systematic review and meta-analysis. BMJ Open, 12 (11). e060786. ISSN 2044-6055 https://doi.org/10.1136/bmjopen-2022-060786
SGUL Authors: Critchley, Julia

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Official URL: http://dx.doi.org/10.1136/bmjopen-2022-060786

Abstract

OBJECTIVE: Contemporary data on the attainment of optimal diabetes treatment goals and the burden of diabetes complications in adult populations with type 2 diabetes in Africa are lacking. We aimed to document the current status of attainment of three key indicators of optimal diabetes care and the prevalence of five diabetes complications in adult African populations with type 2 diabetes. METHODS: We systematically searched Embase, PubMed and the Cochrane library for published studies from January 2000 to December 2020. Included studies reported any information on the proportion of attainment of optimal glycated haemoglobin (HbA1c), blood pressure (BP) and low-density lipoprotein cholesterol (LDLC) goals and/or prevalence of five diabetes complications (diabetic peripheral neuropathy, retinopathy, nephropathy, foot ulcers and peripheral arterial disease). Random effect model meta-analysis was performed to determine the pooled proportion of attainment of the three treatment goals and the prevalence of five diabetes complications. RESULTS: In total, 109 studies with a total of 63 890 participants (53.3% being females) were included in the meta-analysis. Most of the studies were conducted in Eastern African countries (n=44, 40.4%). The pooled proportion of attainment of an optimal HbA1c, BP and LDLC goal was 27% (95% CI 24 to 30, I2=94.7%), 38% (95% CI 30 to 46, I2=98.7%) and 42% (95% CI 32 to 52, I2=97.4%), respectively. The pooled prevalence of diabetic peripheral neuropathy, retinopathy, diabetic nephropathy, peripheral arterial disease and foot ulcers was 38% (95% CI 31 to 45, I2=98.2%), 32% (95% CI 28 to 36, I2=98%), 31% (95% CI 22 to 41, I2=99.3%), 19% (95% CI 12 to 25, I2=98.1%) and 11% (95% CI 9 to 14, I2=97.4%), respectively. CONCLUSION: Attainment of optimal diabetes treatment goals, especially HbA1c, in adult patients with type 2 diabetes in Africa remains a challenge. Diabetes complications, especially diabetic peripheral neuropathy and retinopathy, are highly prevalent in adult populations with type 2 diabetes in Africa.

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