Table 2

Generalised effects mixed model regression for incidents of tobacco use per minute of film (square root transformation)

Fixed effects	Model 1 (total sample)			Model 2 (G, PG, PG-13 films)
Fixed effects	Estimate	t Value	Sig	Estimate	t Value	Sig
Model 1 (n = 497): R² = 0.431 (adjusted = 0.155).
Model 2 (n = 289): R² = 0.40 (adjusted = 0.12).
*p<0.05.
Rate of change	−0.011	−2.863	0.004*	−0.014	−3.104	0.002*
Action	0.103	1.486	0.138	0.102	1.605	0.11
Comedy	0.048	0.887	0.376	0.045	0.937	0.349
Drama	0.156	2.054	0.041*	0.154	2.218	0.027*
Horror	−0.149	−0.619	0.536	−0.157	−0.714	0.476
Sci-fi	0.139	1.251	0.212	0.144	1.415	0.158
PG-13	−0.006	−0.036	0.971	−0.007	−0.048	0.962
R rated	0.511	2.122	0.034*	–	–	–
Action X PG-13	0.129	0.699	0.485	0.135	0.8	0.424
Action X R	−0.323	−1.293	0.197	–	–	–
Comedy X PG-13	0.115	0.643	0.521	0.118	0.724	0.47
Comedy X R	−0.29	−1.17	0.242	–	–	–
Drama X PG-13	0.106	0.556	0.578	0.112	0.641	0.522
Drama X R	−0.323	−1.278	0.202	–	–	–
Horror X PG-13	0.29	0.96	0.337	0.303	1.101	0.272
Horror X R	−0.112	−0.328	0.743	–	–	–
Sci-fi X PG-13	−0.049	−0.222	0.824	−0.052	−0.262	0.793
Sci-fi X R	−0.507	−1.783	0.075	–	–	–