Skip to main content
. 2012 Sep;41(6):509–514. doi: 10.1259/dmfr/21900076

Table 1. Characteristics of the study groups.

Study groups Gender (n)
Age (years)
Number of missing teeth
Female/male Mean±SD Median (min–max)
Periodontitis (n = 24) 12/12 43.58±6.78 5 (0–10)
Periodontally healthy (n = 24) 13/11 40.83±7.41 4 (0–8)
Total (n = 48) 25/23 42.20±7.42 4 (0–10)
p-value NSa NSb NSc

Max, maximum; min, minimum; NS, not significant (p>0.01).

Normally distributed data are expressed as mean ± standard deviation (SD) and non-normally distributed data are expressed as median (min–max).

aχ2 test.

bIndependent samples t-test.

cMann–Whitney U-test.