Characteristics | ORs | Standard errors |
Gender | ||
Male | 1.267 | −0.34 |
Age | ||
8–24 | Reference | |
25–44 | 1.162 | −0.409 |
45–64 | 1.596 | −0.578 |
65 and more | 1.797 | −0.788 |
Education† | ||
Without formal education | 3.300* | −2.382 |
Primary | 3.441** | −1.955 |
Middle school | 1.770 | −0.989 |
High school | 1.141 | −0.632 |
University and postgraduate | Reference | |
Employment status | ||
Employed | Reference | |
Inactive | 1.380 | −0.377 |
Unemployed | 1.299 | −0.586 |
Smoking intensity | ||
Daily cigarette consumption | 1.098** | −0.045 |
Daily cigarette consumption2 | 0.998 | −0.002 |
Socioeconomic level‡ | ||
High | Reference | |
Medium | 0.560 | −0.217 |
Low | 1.450 | −0.544 |
City | ||
Mexico City | Reference | |
Guadalajara | 1.668 | −0.655 |
Monterrey | 1.577 | −0.64 |
Hermosillo | 1.209 | −0.585 |
Leon | 3.743*** | −1.427 |
Merida | 2.560** | −1.07 |
Durango | 3.883*** | −1.426 |
Veracruz | 0.363 | −0.281 |
Observations | 2269 |
*P<0.1; **P<0.05; ***P<0.01.
†Education corresponds to the last grade completed.
‡To build the socioeconomic level indicator, the Mexican Association of Market Research Agencies 8×7 method was used, which consists of assigning scores based on eight variables on characteristics of the household (number of rooms, number of bathrooms, whether there is a shower in any of the bathrooms, number of light bulbs, floor type, number of cars, whether the household has a gas or electric stove) and the head of the household (highest grade completed) collected with the survey of smokers.41