More on peridontal disease and hypertension; this time finding no association

http://www.ncbi.nlm.nih.gov/pubmed/22476024

Am J Hypertens. 2012 Apr 5. doi: 10.1038/ajh.2012.32. [Epub ahead of print]

Periodontal Disease and Incidence of Hypertension in the Health Professionals Follow-Up Study.

Rivas-Tumanyan S, Spiegelman D, Curhan GC, Forman JP, Joshipura KJ.

Source

1] Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, USA [2] Center for Clinical Research and Health Promotion, School of Dental Medicine, University of Puerto Rico, San Juan, Puerto Rico.

Abstract

Background

Recent studies suggest a possible association between periodontal disease and hypertension; however, prospective evidence is limited.

Methods

The study population consisted of 31,543 participants of the Health Professionals' Follow-Up Study (HPFS) prospective cohort who were 40-75 years old at baseline, had no prior hypertension history and had complete baseline information on oral health. Information on periodontal disease, hypertension and potential confounders was updated biennially. We used Cox proportional hazards models to study the relation between periodontal disease at baseline, during follow-up, periodontal bone loss severity, baseline number of teeth, and tooth loss during follow-up, and the risk of developing hypertension. Multivariate models included age, calendar time, race, comprehensive smoking index (CSI), diabetes, alcohol consumption, family history of hypertension, dental profession, body mass index (BMI), physical activity, fruit and vegetable intake, multivitamin use, calcium, vitamin D and vitamin E intake.

Results

We identified 10,828 cases of incident hypertension over 20 years of follow-up. After adjusting for potential confounders, we did not observe significant associations between incident hypertension and periodontal disease at baseline (relative risk (RR) = 1.04; 95% confidence interval (CI): 0.98-1.10), periodontitis during follow-up (RR = 1.01; 95% CI: 0.96-1.05), tooth loss during follow-up (RR = 1.03; 95% CI: 0.98-1.09), or when comparing men with 0-10 teeth to men with ≥25 teeth at baseline (RR = 1.05; 95% CI: 0.91-1.21). Participants reporting severe periodontal bone loss had a RR for incident hypertension of 1.02 compared to those without bone loss (95% CI: 0.77-1.35).

Conclusions

We did not observe an association between periodontal disease measures and incident hypertension in this cohort of middle-aged men.