Table 3 Odds ratio (OR) and 95% confidence interval (CI) estimated from logistic regression model for unmet dental needs of adults disabled

Sociodemographic information

 Sex (male)

  female

2.04

(1.24–3.36)

0.005

2.62

(1.57–4.37)

< 0.001

 Age

  1 year

1.02

(1.01–1.02)

< 0.001

1.02

(1.01–1.02)

< 0.001

 Educational level (university)

  high school

1.85

(1.47–2.32)

< 0.001

1.80

(1.43–2.26)

< 0.001

  middle school

2.05

(1.64–2.57)

< 0.001

1.93

(1.54–2.42)

< 0.001

 Subjective SES (upper)

  Middle

1.80

(0.70-0.64)

0.222

1.74

(0.68–4.50)

0.251

  Low

4.51

(1.76–11.56)

0.002

4.18

(1.63–10.74)

0.003

 Health coverage (NHI)

  Medicaid

1.35

(1.17–1.56)

< 0.001

1.26

(1.08–1.46)

0.003

Chronic diseases or behaviors

 Hypertension (no)

  Yes

0.99

(0.87–1.12)

0.867

 Diabetes (no)

  Yes

1.35

(1.17–1.55)

< 0.001

 Smoking (no)

  Yes

1.32

(1.14–1.54)

< 0.001

 Frequency of toothbrushing (≥ 2)

  < 2

1.34

(1.16–1.55)

< 0.001

 Oral exam last year (yes)

  No

1.48

(1.30–1.68)

< 0.001

Interaction effects

 Sex*Age

  female*1 year

0.99

(0.98-1.00)

0.003

0.99

(0.98–0.99)

< 0.001

NagelKerke R²

0.085

0.104