Sleep, blood pressure and obesity in 22 389 New Zealanders
Article first published online: 14 JUN 2012
© 2012 The Authors. Internal Medicine Journal © 2012 Royal Australasian College of Physicians
Internal Medicine Journal
Volume 42, Issue 6, pages 634–641, June 2012
How to Cite
Wilsmore, B. R., Grunstein, R. R., Fransen, M., Woodward, M., Norton, R. and Ameratunga, S. (2012), Sleep, blood pressure and obesity in 22 389 New Zealanders. Internal Medicine Journal, 42: 634–641. doi: 10.1111/j.1445-5994.2012.02753.x
Conflict of interest: None.
- Issue published online: 14 JUN 2012
- Article first published online: 14 JUN 2012
- Accepted manuscript online: 28 FEB 2012 08:18AM EST
- Received 6 November 2011; accepted 8 January 2012.
- blood pressure;
Aim: To determine the relationship of sleep disorders with blood pressure and obesity in a large, relatively healthy, community-based cohort.
Methods: A cross-sectional study was undertaken using data from 22 389 volunteer blood donors in New Zealand aged 16–84 years. Height, weight, neck circumference and blood pressure were measured directly, and data on sleep and other factors were ascertained using a validated self-administered questionnaire.
Results: Even in a relatively young, non-clinical cohort, lack of sleep (34%), snoring (33%), high blood pressure (20%) and obesity (19%) are common. After adjusting for relevant confounders, participants at high risk of sleep apnoea had double the odds of having high blood pressure but only in participants over 40 years. Very low and high quantities of sleep are also associated with high blood pressure. Even after controlling for neck circumference, self-reported sleep apnoea, sleep dissatisfaction and low amounts of sleep are associated with a higher body mass index.
Conclusions: Obesity and hypertension have significant associations with a variety of sleep disorders, even in those less than 40 years of age and after adjusting for a wide range of potential confounders.