(a) Overall

Final adjusted R-square value	Model	Standardized coefficients	Sig.
0.852	Vent	−0.722	<0.001
	Per-cig weight	0.475	<0.001
	Tipping	−0.344	<0.001
	Filter diameter	0.233	0.004
	Tobacco length	−0.244	0.017
	Paper porosity	−0.150	0.070