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. Author manuscript; available in PMC: 2020 Aug 21.
Published in final edited form as: J Clin Periodontol. 2015 May 7;42(5):407–412. doi: 10.1111/jcpe.12392

Table 2.

Characteristics of study subjects with periodontal examinations.

Age group, years
25–34 35–44 45–54 55–64 65–74 75+ Total
Number of subjects N N N N N N N
Age, years Mean ± SD Mean ± SD Mean ± SD Mean ± SD Mean ± SD Mean ± SD Mean ± SD
Male gender N (%) N (%) N (%) N (%) N (%) N (%) N (%)
Smoking status
Never smokers N (%) N (%) N (%) N (%) N (%) N (%) N (%)
Former smokers N (%) N (%) N (%) N (%) N (%) N (%) N (%)
Current smokers N (%) N (%) N (%) N (%) N (%) N (%) N (%)
Education level
Low N (%) N (%) N (%) N (%) N (%) N (%) N (%)
Middle N (%) N (%) N (%) N (%) N (%) N (%) N (%)
High N (%) N (%) N (%) N (%) N (%) N (%) N (%)
Body Mass index
<25 kg/m2 N (%) N (%) N (%) N (%) N (%) N (%) N (%)
25–30 kg/m2 N (%) N (%) N (%) N (%) N (%) N (%) N (%)
>30 kg/m2 N (%) N (%) N (%) N (%) N (%) N (%) N (%)
Diabetes mellitus N (%) N (%) N (%) N (%) N (%) N (%) N (%)
Tooth brushing frequency
<2 times/day N (%) N (%) N (%) N (%) N (%) N (%) N (%)
≥2 times/day N (%) N (%) N (%) N (%) N (%) N (%) N (%)
Use of interdental care devices
No N (%) N (%) N (%) N (%) N (%) N (%) N (%)
Yes N (%) N (%) N (%) N (%) N (%) N (%) N (%)
Last dental visit
within last 12 months N (%) N (%) N (%) N (%) N (%) N (%) N (%)
less often N (%) N (%) N (%) N (%) N (%) N (%) N (%)
Edentulism, % * N (%) N (%) N (%) N (%) N (%) N (%) N (%)
Tooth count * Mean ± SD Mean ± SD Mean ± SD Mean ± SD Mean ± SD Mean ± SD Mean ± SD
Tooth count in dentates * Mean ± SD Mean ± SD Mean ± SD Mean ± SD Mean ± SD Mean ± SD Mean ± SD
Edentulism, % ** N (%) N (%) N (%) N (%) N (%) N (%) N (%)
Tooth count ** Mean ± SD Mean ± SD Mean ± SD Mean ± SD Mean ± SD Mean ± SD Mean ± SD
Tooth count in dentates ** Mean ± SD Mean ± SD Mean ± SD Mean ± SD Mean ± SD Mean ± SD Mean ± SD
Prevalence of dental implants N (%) N (%) N (%) N (%) N (%) N (%) N (%)
Number of dental implants per subject Mean ± SD Mean ± SD Mean ± SD Mean ± SD Mean ± SD Mean ± SD Mean ± SD
*

excluding third molars;

**

including third molars

Data are presented as numbers (percentages) or Means (standard deviation, SD).