title: Prevalence of cardiovascular risk factors among workers at a private tertiary center in Angola.
abstract: BACKGROUND
  The burden of cardiovascular diseases (CVD) is increasing in most countries of sub-Saharan Africa. However, as there is a scarcity of data, little is known about CVD in Angola. This study aimed to determine the prevalence of prehypertension, hypertension, prediabetes, diabetes, overweight, and obesity among workers at a private tertiary center in Angola.
  
  
  METHODS
  A cross-sectional study was conducted among 781 workers of Clínica Girassol, a tertiary health care center in Angola, during the month of November 2013. Demographic, anthropometric, and clinical variables were analyzed.
  
  
  RESULTS
  Of the 781 participants studied, 50.44% were males and 78.11% were under 40 years old. The prevalence of hypertension and prehypertension was 17.93% (95% confidence interval [CI]: 15.24%-20.74%) and 54.03% (95% CI: 50.58%-57.62%), respectively. Among hypertensive subjects, 83.57% (117) were unaware of the diagnosis. Hypertension was associated with age (≥40 years) (odds ratio [OR]: 6.21; 95% CI: 4.18-9.24;P<0.001) and with overweight and obesity (OR: 2.32; 95% CI: 1.56-3.44;P<0.001). The prevalence of diabetes and prediabetes was 2.69% (95% CI: 1.54%-3.97%) and 7.94% (95% CI: 6.02%-9.99%), respectively. The prevalence of overweight was 34.44% (95% CI: 31.11%-37.90%) and 19.85% (95% CI: 17.03%-22.79%) for obesity. There was an association between overweight and obesity and the female sex (OR: 1.71; 95% CI: 1.29-2.28;P<0.001). The prevalence of family history of CVD, smoking, and alcoholism was 52.24%, 4.87%, and 45.33%, respectively.
  
  
  CONCLUSIONS
  There was a high prevalence of cardiovascular risk factors in apparently healthy workers at the private tertiary center in Angola.
authors.affiliation: Department of Medicine.
authors.forename: Feliciano Chanana
authors.initials: FC
authors.lastname: Paquissi
authors.affiliation: Cardio-Thoracic Center.
authors.forename: Valdano
authors.initials: V
authors.lastname: Manuel
authors.affiliation: Cardio-Thoracic Center.
authors.forename: Ana
authors.initials: A
authors.lastname: Manuel
authors.affiliation: Department of Medicine.
authors.forename: Guiomar Lote
authors.initials: GL
authors.lastname: Mateus
authors.affiliation: Cardio-Thoracic Center.
authors.forename: Bruna
authors.initials: B
authors.lastname: David
authors.affiliation: Service of Endocrinology, Department of Medicine, Clínica Girassol, Luanda, Angola.
authors.forename: Gertrudes
authors.initials: G
authors.lastname: Béu
authors.affiliation: Service of Endocrinology, Department of Medicine, Clínica Girassol, Luanda, Angola.
authors.forename: Anselmo
authors.initials: A
authors.lastname: Castela
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000428:Alcohol Drinking / Q000009:adverse effects / Q000453:epidemiology; D000810:Angola / Q000453:epidemiology; D002318:Cardiovascular Diseases / Q000175:diagnosis / Q000453:epidemiology*; D016009:Chi-Square Distribution; D003920:Diabetes Mellitus / Q000175:diagnosis / Q000453:epidemiology*; D005260:Female; D006282:Health Personnel; D006304:Health Status; D006801:Humans; D006973:Hypertension / Q000175:diagnosis / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000175:diagnosis / Q000453:epidemiology; D016272:Occupational Health; D016017:Odds Ratio; D050177:Overweight / Q000175:diagnosis / Q000453:epidemiology*; D011236:Prediabetic State / Q000175:diagnosis / Q000453:epidemiology; D058246:Prehypertension / Q000175:diagnosis / Q000453:epidemiology; D015995:Prevalence; D017149:Private Sector; D018570:Risk Assessment; D012307:Risk Factors; D012737:Sex Factors; D012907:Smoking / Q000009:adverse effects / Q000453:epidemiology; D062606:Tertiary Care Centers; D013997:Time Factors; D055815:Young Adult
keywords: Angola; diabetes mellitus; hypertension; obesity; prehypertension; risk factors