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Time trends in past 30 days of cigar use among 18–25-year-old respondents from the National Survey on Drug Use or Health: United States, 2002–2008.
Note. Tests for a statistically significant change in time trends reveal that among non-Hispanic White men, prevalence rates increased during the 7-year study period (P < .001). No other statistically significant changes were noted by racial/ethnic by gender groups.
