Table 1.

Sociodemographic Characteristics among Adolescents

Sociodemographic Characteristics	N (506)	Percent %	Smoking Prevalencea
Gender
Boys	242	47.8	32.6
Girls	264	52.2	26.9
Age
11 Years Old	20	3.9	15.0
12 Years Old	471	93.1	29.7
13 Years Old	15	3.0	46.6
School Setting
Public	279	55.1	32.9
Private	227	44.9	25.6
Family Structure
Non-intact	121	23.9	46.3
Intact	385	76.1	24.4
Parental Smoking
Yes	195	38.5	54.0
Father only	96	18.9
Mother only	54	10.7
Both parents	45	8.9
No	311	61.5	14.5
Socioeconomic Status
Low (<10,000 Mexican pesos)b	177	35.0	37.3
Middle (10,000-25,000 Mexican pesos)b	151	29.8	27.2
High (>25,000 Mexican pesos)b	178	35.2	24.2

^aSmoking prevalence was defined as a student ever having smoked a full cigarette

^b$1US dollar =16.5 Mexican pesos in 2015