Table 1.
Individual-level characteristics by trajectory of cigarette smoking.
Fig 1.
Four trajectories of smoking behavior among ever smokers in the National Longitudinal Survey of Youth 1997 (NLSY97).
Analyses of 19 years (15 waves) of smoking data (days smoked per month) for participants in the NLSY97 revealed four patterns of smoking behavior (in addition to never smokers): experimenters, quitters, early established smokers, and late escalators.
Table 2.
Adjusted odds of trajectory membership for all significant covariates (with 95% confidence intervals).