Variable

aOR (95% CI of OR)

p

Age ≥ 65 year old

0.72 (0.63 - 0.82)

<0.001

Female gender

1.09 (0.98 - 1.21)

0.102

Secondary school or below

0.95 (0.86 - 1.06)

0.374

Current smoker (1 = yes)

1.20 (1.05 - 1.36)

0.006

Dental check (1 = infrequent)

1.23 (1.10 - 1.36)

<0.001

Brushing teeth (1 = infrequent)

1.12 (1.02 - 1.23)

0.022

Using dental floss (1 = infrequent)

1.12 (1.01 - 1.23)

0.028

Balance diet (1 = infrequent)

1.64 (1.45 - 1.84)

<0.001

Vegetable intake (1 = infrequent)

1.19 (1.07 - 1.32)

0.001

Fruit intake (1 = infrequent)

1.08 (0.97 - 1.19)

0.156

Water intake (1 = infrequent)

1.14 (1.03 - 1.25)

0.009

Regular exercise (1 = infrequent)

1.26 (1.14 - 1.39)

<0.001