Table 2 Demographic and clinical characteristics of the study population

General characteristics

Mean age ± SEM ^a (years)

75.6 ± 1.5

73.4 ± 1.4

Gender female ^b (%)

42.9

45.5

Clinical characteristics

Mean CPI ^a

2.9 ± 0.1

2.5 ± 0.1

Mean NRT ^a

23.7 ± 0.5

25.8 ± 0.5

Survey characteristics

Oral hygiene/day ^a (mean ± SEM)

1.8 ± 0.1

1.9 ± 0.1

Sugar intake/week ^a (mean ± SEM )

1.2 ± 0.6

0.9 ± 0.4

Smoking ^b (%)

9.5

9.1