Table 4 Multivariate association between Oral Health-Related Quality of Life* and cohort attributes

Speaking

Swallowing

Chewing

Social

Pain

Characteristics

   Males

1

1

1

1

   Females

0.69[p = 0.00]

1.26[p = 0.00]

1.20[p = 0.00]

1.25[p = 0.00]

Age (years)

   15-29

1

1

1

1

1

30-49

1.52 [p = 0.00]

1.53[p = 0.00]

1.77[p = 0.00]

1.09[p = 0.00]

0.92[p = 0.00]

50+

2.02 [p = 0.00]

2.22[p = 0.00]

2.85[p = 0.00]

0.77[p = 0.00]

0.99[p = 0.90]

Income (Baht per month)

   < 3000

1.40 [p = 0.00]

1.56[p = 0.01]

1.02 [p = 0.57]

1.30[p = 0.00]

1.31[p = 0.00]

   3001-7000

1.16 [p = 0.04]

1.70[p = 0.00]

1.09 [p = 0.00]

1.26[p = 0.00]

1.20[p = 0.00]

   7001-10000

1.07 [p = 0.45]

1.39[p = 0.01]

1.03 [p = 0.38]

1.17[p = 0.00]

1.13[p = 0.00]

   > 10000

1

1

1

1

1

Education

   Up to high school

0.82[p = 0.00]

1.04[p = 0.72]

1.09[p = 0.00]

0.99[p = 0.79]

   Diploma/certificate

0.98[p = 0.80]

1.33[p = 0.03]

1.18 [p = 0.00]

1.07[p = 0.08]

   University degree

1

1

1

1

Household assets (Baht)

   0-30,000

1.20[p = 0.00]

1.24[p = 0.00]

1.27[p = 0.00]

   30,001-60,000

1.14[p = 0.00]

1.16[p = 0.00]

1.17[p = 0.00]

   > 60,000

1

1

1

Lifecourse urbanization

   Lifetime rural residents

1

1

1

1

   Rural-urban residents

1.10[p = 0.09]

1.07[p = 0.00]

1.06[p = 0.00]

1.05[p = 0.07]

   Lifetime urban residents

1.40[p = 0.01]

1.01[p = 0.64]

1.07[p = 0.00]

0.93[p = 0.03]

Health behaviours

Smoking

   Not a regular smoker

1

1

1

1

1

   Ever smoker

1.30[p = 0.00]

1.31[p = 0.04]

1.36[p = 0.00]

1.25[p = 0.00]

1.25[p = 0.00]

   A regular smoker

1.32[p = 0.00]

1.44[p = 0.01]

1.51[p = 0.00]

1.39[p = 0.00]

1.40[p = 0.00]

Alcohol drinking

   Not a regular drinker

1

1

1

1

   A regular drinker

1.23 [p = 0.04]

1.26[p = 0.00]

1.24[p = 0.00]

1.27[p = 0.00]

Number of teeth

   Remaining teeth ≥ 20

1

1

1

1

1

   Remaining teeth < 20

6.43[p = 0.00]

6.27[p = 0.00]

3.26[p = 0.00]

2.61[p = 0.00]

1.54[p = 0.00]