Association between sleep quality and cardiovascular health: A door-to-door survey in rural Ecuador

Oscar H. Del Brutto, Robertino M. Mera, Mauricio Zambrano, Victor J. Del Brutto, Pablo R. Castillo

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


Objectives: Cardiovascular correlates of sleep disorders have not been well investigated in underserved populations. The aim of this door-to-door survey was to evaluate the association between sleep quality and cardiovascular health status in persons aged ≥40 years living in a village that is representative of rural Ecuador. Methods All stroke-free Atahualpa residents aged ≥40 years were screened with a validated Spanish version of the Pittsburgh Sleep Quality Index and the seven cardiovascular health (CVH) metrics proposed by the American Heart Association to assess the CVH status. Results: A total of 635 persons (mean age 59 ± 13 years; 58% women) were identified. A poor sleep quality was present in 27% of the subjects (95% CI 24-31%) and a poor cardiovascular health in 69% (95% CI 63-71%). In a multivariate logistic regression model, a poor sleep quality was associated with some CVH metrics in the poor range, including smoking status (p = 0.026), physical activity (p = 0.01) and blood glucose levels (p = 0.036). Conclusions A poor sleep quality may be linked to individual cardiovascular risk factors in this underserved Latin American population. This finding provides useful insights for the implementation of regional prevention priorities.

Original languageEnglish (US)
Pages (from-to)234-237
Number of pages4
JournalEnvironmental Health and Preventive Medicine
Issue number3
StatePublished - May 2014
Externally publishedYes


  • Atahualpa
  • Cardiovascular health
  • Ecuador
  • Population-based study
  • Sleep disorders
  • Sleep quality

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health


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