Higher levels of a specific bacteria on the tongue are linked to higher blood pressure.
Scientific Claim
There is a positive correlation between Tannerella forsythia in tongue coating and systolic and diastolic blood pressure (r = 0.42 and 0.50, respectively, both P < 0.05).
Original Statement
“Another interesting result was the positive correlation of Tannerella forsythia in tongue coating with systolic and diastolic blood pressure (r = 0.42 and 0.50, respectively, both P < 0.05), while the known nitrite-producing Corynebacterium durum correlated negatively with diastolic blood pressure (r = -0.44, P < 0.05) (Supplementary Table 2).”
Evidence Quality Assessment
Claim Status
appropriately stated
Study Design Support
Design supports claim
Appropriate Language Strength
association
Can only show association/correlation
Assessment Explanation
The study design is observational and shows correlation between Tannerella forsythia and blood pressure. The language 'positive correlation' appropriately reflects the correlational nature of the findings.