Age of Initiation
Middle and High School Students

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Fourteen percent of middle school students smoked a whole cigarette before age 11 years. Almost one-third of high school students (29%) smoked a whole cigarette before age 13 years.
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Fifteen percent of middle school students had their first drink of alcohol before age 11 years. About one-quarter (26%), of high school students had their first drink of alcohol before age 13 years. Males (29%) were more likely than females (24%) to report this behavior.
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Overall, 9% of middle school students tried marijuana for the first time before age 11 years. Overall, 28% of high school students tried marijuana for the first time before age 13 years. Male students (33%) were more likely than female students (23%) to report this behavior.
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Overall, 2% of middle school students had sexual intercourse before age 11 years. Overall, 6% of high school students had sexual intercourse before age 13 years. Males (8%) were more likely than females (3%) to report this behavior.