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Research Article: Burden of cardiometabolic risk factors and preclinical target organ damage among adults in Freetown, Sierra Leone: a community-based health-screening survey

Date Published: 2023-05-16

Abstract:
Objective To investigate the prevalence of cardiometabolic risk factors (CMRFs), target organ damage (TOD) and its associated factors among adults in Freetown, Sierra Leone. Design This community-based cross-sectional study used a stratified multistage random sampling method to recruit adult participants. Setting The health screening study was conducted between October 2019 and October 2021 in Western Area Urban, Sierra Leone. Participants A total of 2394 adult Sierra Leoneans aged 20 years or older were enrolled. Outcome measure Anthropometric data, fasting lipid profiles, fasting plasma glucose, TOD, clinical profiles and demographic characteristics of participants were described. The cardiometabolic risks were further related to TOD. Results The prevalence of known CMRFs was 35.3% for hypertension, 8.3% for diabetes mellitus, 21.1% for dyslipidaemia, 10.0% for obesity, 13.4% for smoking and 37.9% for alcohol. Additionally, 16.1% had left ventricular hypertrophy (LVH) by ECG, 14.2% had LVH by two-dimensional echo and 11.4% had chronic kidney disease (CKD). The odds of developing ECG-LVH were higher with diabetes (OR=1.255, 95%?CI (0.822 to 1.916) and dyslipidaemia (OR=1.449, 95%?CI (0.834 to 2.518). Associated factors for higher odds of Left Ventricular Mass Index by echo were dyslipidaemia (OR=1.844, 95%?CI (1.006 to 3.380)) and diabetes mellitus (OR=1.176, 95%?CI (0.759 to 1.823)). The odds of having CKD were associated with diabetes mellitus (OR=1.212, 95%?CI (0.741 to 1.983)) and hypertension (OR=1.163, 95%?CI (0.887 to 1.525)). A low optimal cut-off point for ECG-LVH (male 24.5?mm vs female 27.5?mm) was required to maximise sensitivity and specificity by a receiver operating characteristics curve since the odds for LVH by ECG were low. Conclusions This study provides novel data-driven information on the burden of CMRF and its association with preclinical TOD in a resource-limited setting. It illustrates the need for interventions in improving cardiometabolic health screening and management in Sierra Leonean.

Introduction:
Cardiometabolic diseases (CMD) are a group of complex disorders, including cardiovascular diseases and diabetes mellitus. The spectrum of CMD begins with insulin resistance, a trait that is expressed early in life and later will progress to clinically identifiable high-risk states of pre-diabetes, then to type 2 diabetes mellitus and cardiovascular diseases (CVD). 1 CVD is of great interest because its insidious progression is marked by a multistage pathogenesis that is often heralded by asymptomatic changes in…

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