BioMed Research International / 2014 / Article / Tab 2

Research Article

Dental Calculus Is Associated with Death from Heart Infarction

Table 2

Demographic clinical oral health data at the baseline examination in 1985 of 1676 subjects who were dead or alive by the follow-up year of 2011.

Dead ( )
number, mean ± SD
Alive ( )
number, mean ± SD
value*

Gender (female/male) NS
Age in 1985 (years) <0.05
Education (compulsory school/higher) NS
Smoking (pack-year) NS
Income (Swedish Crowns ) NS
Plaque index NS
Gingival inflammation NS
Calculus index 0.015
Periodontal pockets ( )0 0.001
Missing teeth NS
Missing molars NS

Data are expressed as mean ± SD.
Fisher’s exact -test or Student’s -test for unpaired samples as appropriate.