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Table 4 Self-perceived oral health regression results, controlling for oral health condition

From: Socioeconomic inequalities in self-perceived oral health among adults in Chile

 

Heckman Two-step

Ordered Model Sample Selection

Coef.

p-value

Coef.

p-value

Sex

−2.977

0.009

−0.202

0.067

Age (base: 18–30)

 31–40

0.762

0.538

0.021

0.853

 41–50

0.854

0.526

0.016

0.884

 51–61

0.991

0.437

0.057

0.608

Head of household

−1.079

0.573

−0.170

0.248

Married/partner

−0.052

0.936

0.005

0.936

Children under 5

2.967

0.000

0.272

0.000

Children aged 5-18

0.559

0.097

0.050

0.031

Education (base: Middle or less)

 Incomplete high school

−0.730

0.519

−0.102

0.317

 Complete high school

−2.650

0.022

−0.281

0.002

 Higher Education

−4.237

0.001

−0.402

0.001

Employed full time

1.121

0.283

0.125

0.133

Employed part time

−0.973

0.267

−0.120

0.148

Public health system (base: Public Insurance A, most vulnerable)

 Public Insurance B

−2.539

0.004

−0.249

0.000

 Public Insurance C

−2.960

0.014

−0.318

0.000

 Public Insurance D

−1.930

0.115

−0.213

0.005

 Public Insurance unknown category

5.534

0.620

0.583

0.097

Any frontal missing teeth

4.721

0.000

0.404

0.000

Caries (base: less than 6)

 6–11

1.784

0.036

0.165

0.005

 12 or more

7.032

0.001

0.607

0.000

Teeth lost by caries

 6–11

3.445

0.000

0.284

0.000

 12 or more

5.171

0.000

0.443

0.000

Malocclusion

1.291

0.078

0.121

0.055

Inverse Mills ratio (IMR)

−3.782

0.131

  

Observations

1,394

 

1,394

 

LR test indep equations

  

4.21

0.04