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Firima E, Gonzalez L, Khan MA, Manthabiseng M, Sematle MP, Bane M, Khomolishoele M, Leisa I, Retselisitsoe L, Burkard T, Seelig E, Lee T, Chammartin F, Gupta R, Leigh B, Weisser M, Amstutz A, Labhardt ND. High Rates of Undiagnosed Target Organ Damage Among Adults with Elevated Blood Pressure or Diabetes Mellitus in a Community-Based Survey in Lesotho. J Epidemiol Glob Health 2023; 13:857-869. [PMID: 37883005 PMCID: PMC10686968 DOI: 10.1007/s44197-023-00158-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 09/21/2023] [Indexed: 10/27/2023] Open
Abstract
INTRODUCTION Prevalence of elevated blood pressure (BP) and diabetes mellitus (DM) is increasing in sub-Saharan Africa. Data on target organ damage such as retinopathy, left ventricular hypertrophy (LVH), renal impairment and peripheral neuropathy (PN) among persons with elevated BP and/or DM in sub-Saharan Africa remain scarce. AIM To determine at community-level the prevalence of retinopathy, LVH, renal impairment, and PN among adults with elevated BP and/or DM, and assess the association of elevated BP and/or DM with target organ damage in Lesotho. METHODS During a household-based survey, a sub-sample of adults with elevated BP (≥ 140/90 mmHg) and/or DM (glycosylated hemoglobin ≥ 6.5%), as well as comparators (BP < 140/90 mmHg, HbA1c < 6.5%) were screened for retinopathy, LVH, renal impairment, and PN. We used multivariable logistic regression for inferential analysis. RESULTS Out of 6108 participants screened during the survey, 420 with elevated BP only, 80 with DM only, 61 with elevated BP and DM, and 360 comparators were assessed for target organ damage. Among those with elevated BP, and among those with DM with or without elevated BP, prevalence of retinopathy was 34.6% (89/257) and 14.4% (15/104); renal impairment was 45.0% (156/347) and 42.4% (56/132), respectively. Among those with elevated BP, 2.3% (7/300) and 65.7% (224/341) had LVH and left ventricular concentric remodeling, respectively. PN, only assessed among those with DM, was present in 32.6% (42/129). Elevated BP was associated with increased odds of retinopathy (aOR, 19.13; 95% CI, 8.52-42.94; P < 0.001) and renal impairment (aOR, 1.80; 95% CI, 1.27-2.55; P = 0.001). Presence of both elevated BP and DM was associated with an increased odds of retinopathy (aOR, 16.30; 95%CI, 5.69-46.68; P < 0.001), renal impairment (aOR, 2.55; 95% CI, 1.35-4.81; P = 0.004), and PN (aOR, 2.13; 95% CI, 1.04-4.38; P = 0.040). CONCLUSION We found a high prevalence of undiagnosed target organ damage among adults with elevated BP and/or DM during community-based screening. These findings emphasize the importance of regular prevention and screening activities in this setting.
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Affiliation(s)
- Emmanuel Firima
- Division of Clinical Epidemiology, Department of Clinical Research, University Hospital and University of Basel, Totengässlein 3, 4053, Basel, Switzerland.
- University of Basel, Basel, Switzerland.
- Swiss Tropical and Public Health Institute, Basel, Switzerland.
| | - Lucia Gonzalez
- Division of Clinical Epidemiology, Department of Clinical Research, University Hospital and University of Basel, Totengässlein 3, 4053, Basel, Switzerland
- University of Basel, Basel, Switzerland
- Swiss Tropical and Public Health Institute, Basel, Switzerland
| | | | | | | | | | | | | | | | - Thilo Burkard
- Department of Cardiology, University Hospital Basel, Basel, Switzerland
- Medical Outpatient Department and Hypertension Clinic, ESH Hypertension Centre of Excellence, University Hospital Basel, Basel, Switzerland
| | - Eleonara Seelig
- University of Basel, Basel, Switzerland
- Department of Clinical Research, University Hospital Basel, Basel, Switzerland
| | - Tristan Lee
- Division of Clinical Epidemiology, Department of Clinical Research, University Hospital and University of Basel, Totengässlein 3, 4053, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Frédérique Chammartin
- Division of Clinical Epidemiology, Department of Clinical Research, University Hospital and University of Basel, Totengässlein 3, 4053, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | | | - Bailah Leigh
- University of Sierra Leone, Freetown, Sierra Leone
| | - Maja Weisser
- University of Basel, Basel, Switzerland
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Basel, Basel, Switzerland
- Ifakara Health Institute, Ifakara, Tanzania
| | - Alain Amstutz
- Division of Clinical Epidemiology, Department of Clinical Research, University Hospital and University of Basel, Totengässlein 3, 4053, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Niklaus Daniel Labhardt
- Division of Clinical Epidemiology, Department of Clinical Research, University Hospital and University of Basel, Totengässlein 3, 4053, Basel, Switzerland.
- University of Basel, Basel, Switzerland.
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