Table 3.

Unadjusted additive p-values associated with interaction terms between media campaign exposure and gender, race/ethnicity, and parental education for any smoking initiation, and daily smoking initiation at modal age 19/20, monitoring the future longitudinal sample, baseline year 2001–2015. Results reflect imputed data (m = 10).

	Any Smoking Initiation	Daily Smoking Initiation
Gender	0.635	0.490
Race/ethnicity	0.761	0.940
Parental education	0.280	0.288
N	7502	11,998