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BMJ Open. 2016 Aug 30;6(8):e012386. doi: 10.1136/bmjopen-2016-012386.

Is poor oral health a risk marker for incident cardiovascular disease hospitalisation and all-cause mortality? Findings from 172 630 participants from the prospective 45 and Up Study.

Author information

1
National Centre for Epidemiology and Population Health, Research School of Population Health, Australian National University, Canberra, Australian Capital Territory, Australia.
2
Faculty of Dentistry, University of Sydney, Sydney, New South Wales, Australia Department of Preventive Medicine and the Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA.
3
The George Institute for Global Health, University of Sydney, Sydney, New South Wales, Australia.
4
National Centre for Epidemiology and Population Health, Research School of Population Health, Australian National University, Canberra, Australian Capital Territory, Australia The Sax Institute, Sydney, New South Wales, Australia.

Abstract

OBJECTIVE:

To investigate the relationship between oral health and incident hospitalisation for ischaemic heart disease (IHD), heart failure (HF), ischaemic stroke and peripheral vascular disease (PVD) and all-cause mortality.

DESIGN:

Prospective population-based study of Australian men and women aged 45 years or older, who were recruited to the 45 and Up Study between January 2006 and April 2009; baseline questionnaire data were linked to hospitalisations and deaths up to December 2011. Study exposures include tooth loss and self-rated health of teeth and gums at baseline.

SETTING:

New South Wales, Australia.

PARTICIPANTS:

Individuals aged 45-75 years, excluding those with a history of cancer/cardiovascular disease (CVD) at baseline; n=172 630.

PRIMARY OUTCOMES:

Incident hospitalisation for IHD, HF, ischaemic stroke and PVD and all-cause mortality.

RESULTS:

During a median follow-up of 3.9 years, 3239 incident hospitalisations for IHD, 212 for HF, 283 for ischaemic stroke and 359 for PVD, and 1908 deaths, were observed. Cox proportional hazards models examined the relationship between oral health indicators and incident hospitalisation for CVD and all-cause mortality, adjusting for potential confounding factors. All-cause mortality and incident CVD hospitalisation risk increased significantly with increasing tooth loss for all outcomes except ischaemic stroke (ptrend<0.05). In those reporting no teeth versus ≥20 teeth left, risks were increased for HF (HR, 95% CI 1.97, 1.27 to 3.07), PVD (2.53, 1.81 to 3.52) and all-cause mortality (1.60, 1.37 to 1.87). The risk of IHD, PVD and all-cause mortality (but not HF or ischaemic stroke) increased significantly with worsening self-rated health of teeth and gums (ptrend<0.05). In those reporting poor versus very good health of teeth and gums, risks were increased for IHD (1.19, 1.03 to 1.38), PVD (1.66, 1.13 to 2.43) and all-cause mortality (1.76, 1.50 to 2.08).

CONCLUSIONS:

Tooth loss and, to a lesser extent, self-rated health of teeth and gums, are markers for increased risk of IHD, PVD and all-cause mortality. Tooth loss is also a marker for increased risk of HF.

KEYWORDS:

cardiovascular disease epidemiology; mortality; oral health

PMID:
27577588
PMCID:
PMC5013478
DOI:
10.1136/bmjopen-2016-012386
[Indexed for MEDLINE]
Free PMC Article

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