Table 3 Bivariate association of Oral Health-Related Quality of Life and cohort attributes

Speaking

Swallowing

Chewing

Social

Pain

   Males

1

1

1

1

1

   Females

0.84[p = 0.00]

0.58[p = 0.00]

0.92[p = 0.10]

1.06[p = 0.01]

1.10[p = 0.00]

Age (years)

   15-29

1

1

1

1

1

30-49

1.56[p = 0.00]

1.40[p = 0.00]

1.74[p = 0.00]

0.98[p = 0.47]

0.82[p = 0.00]

50+

3.44[p = 0.00]

3.25[p = 0.00]

3.25[p = 0.00]

0.78[p = 0.00]

0.89[p = 0.12]

Income (Baht per month)

   < 3000

0.93[p = 0.31]

1.06[p = 0.62]

0.73[p = 0.00]

1.28[p = 0.00]

1.39[p = 0.00]

   3001-7000

0.78[p = 0.00]

1.16[p = 0.17]

0.83[p = 0.00]

1.26[p = 0.00]

1.35[p = 0.00]

   7001-10000

0.79[p = 0.00]

1.06[p = 0.70]

0.83[p = 0.00]

1.17[p = 0.00]

1.22[p = 0.00]

   > 10000

1

1

1

1

1

Education

   Up to high school

0.89[p = 0.04]

1.34[p = 0.01]

1.12[p = 0.00]

1.14[p = 0.00]

1.17[p = 0.00]

   Diploma/certificate

0.93[p = 0.27]

1.38[p = 0.00]

1.13[p = 0.00]

1.14[p = 0.00]

1.22[p = 0.00]

   University degree

1

1

1

1

1

Household assets (Baht)

   0-30,000

0.87[p = 0.01]

1.14[p = 0.22]

1.01[p = 0.60]

1.28[p = 0.00]

1.41[p = 0.00]

   30,001-60,000

0.99[p = 0.93]

1.15[p = 0.22]

1.05 [p = 0.06]

1.17[p = 0.00]

1.23[p = 0.00]

   > 60,000

1

1

1

1

1

Lifecourse urbanization

   Lifetime rural residents

1

1

1

1

1

   Rural-urban residents

1.07[p = 0.21]

1.01[p = 0.91]

1.08[p = 0.00]

1.00[p = 0.97]

0.99[p = 0.57]

   Lifetime urban residents

1.23[p = 0.01]

0.97[p = 0.82]

1.04[p = 0.16]

0.99[p = 0.74]

0.84[p = 0.00]

Health behaviours

Smoking

   Not a regular smoker

1

1

1

1

1

   Ever smoker

1.48[p = 0.00]

1.72[p = 0.00]

1.45[p = 0.00]

1.21[p = 0.00]

1.07[p = 0.03]

   A regular smoker

1.49[p = 0.00]

1.89[p = 0.00]

1.56[p = 0.00]

1.30[p = 0.00]

1.25[p = 0.00]

Alcohol drinking

   Not a regular drinker

1

1

1

1

1

   A regular drinker

1.53[p = 0.00]

1.38[p = 0.00]

1.57[p = 0.00]

1.26[p = 0.00]

1.24[p = 0.00]

Number of teeth

   Remaining teeth ≥ 20

1

1

1

1

1

   Remaining teeth < 20

7.14[p = 0.00]

6.90[p = 0.00]

3.78[p = 0.00]

2.51[p = 0.00]

1.55[p = 0.00]