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Marital status and heart rate variability in patients with suspected coronary artery disease

Gemma Randall1, Mimi R Bhattacharyya, Andrew Steptoe

  • 1Department of Epidemiology and Public Health, University College London, 1-19 Torrington Place, London, UK. g.randall@ucl.ac.uk

Annals of Behavioral Medicine : a Publication of the Society of Behavioral Medicine
|October 7, 2009
PubMed

Insights

Being unmarried is linked to poorer heart rate variability (HRV), a key indicator of cardiovascular health. This finding may explain why married individuals experience lower rates of heart disease.

Area of Science:

  • Cardiology
  • Psychophysiology
  • Social Determinants of Health

Background:

  • Marriage is associated with reduced cardiovascular disease (CVD) risk.
  • Impaired heart rate variability (HRV) is linked to CVD and social isolation.
  • Understanding the interplay between social factors and cardiovascular health is crucial.

Purpose of the Study:

  • To investigate the association between heart rate variability (HRV) and marital status.
  • To examine HRV in patients with suspected coronary artery disease (CAD).

Main Methods:

  • Eighty-eight patients undergoing investigation for suspected CAD were recruited.
  • 24-hour electrocardiograms were used to measure heart rate variability.
  • Frequency and time-domain analyses were applied to HRV data.

Main Results:

  • Unmarried status was significantly associated with reduced HRV.
  • This association remained independent of age, gender, medication, and depression.
  • Reduced HRV was observed across both frequency and time-domain measures.

Conclusions:

  • Lower heart rate variability is linked to not being married.
  • This HRV difference may mediate the protective effect of marriage on cardiovascular health.
  • Marital status is an important factor influencing cardiovascular outcomes.
Abstract

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