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Adolescent smoking prevalence is tracked annually and has increased since 1991. In contrast, little is known about trends in smoking among college students, a group that has previously been more resistant to tobacco use than other young adults.

To examine changes in cigarette smoking among college students between 1993 and 1997 and among different types of students and colleges.

Self-administered survey (Harvard School of Public Health College Alcohol Study).

One hundred sixteen nationally representative 4-year colleges.

A total of 15,103 randomly selected students in 1993 (70% response rate) and 14,251 students in 1997 (60% response rate).

Self-reports of cigarette smoking in the past 30 days and in the past year, age at smoking first cigarette, and number of attempts to quit.

Over 4 years, the prevalence of …