Table 2 Multivariate and adjusted negative binomial regression of ODB and the independent variables

Skin color

White

Ref

1

Non-white

0.081

 < 0.001

1.084

1.058

1.111

Family income

Up to R$1500.00/month

0.075

 < 0.001

1.078

1.054

1.103

Over R$1501.00/month

Ref

1

Education

Primary education

0.149

 < 0.001

1.161

1.126

1.196

Secondary or higher education

Ref

1

OIDP

No impact of oral health on daily activities

Ref

1

Impact of oral health on daily activities

0.230

 < 0.001

1.258

1.229

1.288

Age group

Teenager (15 to 19 years old)

Ref

1

Adult (35 to 44 years old)

0.998

 < 0.001

2.712

2.590

2.841

Older adults (65 to 74 year old)

1.048

 < 0.001

2.851

2.716

2.992