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[Contribution of socioeconomic status to smoking behavior of parents of 4th grade elementary school students in Japan].

OBJECTIVES
The present study was performed to elucidate the effects of individual and social factors on smoking behavior of parents of fourth grade elementary school students in Japan.


METHODS
A self-administered questionnaire was sent to a total of 4,179 households of fourth grade elementary school students. A total of 3,522 responses including actual numbers of children, smoking behavior of parents, and marital status were available for the analysis.


RESULTS
Current smoking rate in mothers was 21.2%. In mothers, "smoking of spouse" "single mother", "under the age of 34", "not taking child-care leave;", "mother's parents not alive", "mothers from Chiba", "nursery use", "not use parenting circles", "unvaccinated measles or inoculation unknown" and "life dissatisfaction" were statistically associated with smoking behavior. The current smoking rate in fathers was 51.4%. Four factors of "smoking of spouse", "under the age of 34", "non-skilled labor, sales work" and "employees of private companies of less than 1,000 employees" were statistically associated with smoking behavior.


CONCLUSION
The present study demonstrated a close link between smoking behavior and individual socioeconomic status in Japanese parents. Especially, smoking of spouse and being a single female parent were important factors for smoking.