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 | Â | 1,394 | Â |
LR test indep equations | Â | Â | 4.21 | 0.04 |