. 2015 Jul 29;1:89–96. doi: 10.1016/j.abrep.2015.07.002

Table 2.

Correlation matrix detailing relationships between key study variables.

	Self-control	CFCS	Smoke	Smoke 20 +	Age	Fem.	Income	Educ.	HH size
CFCS	.08^⁎
Smoke	−.13^⁎⁎	−.09^⁎⁎
Smoke 20 plus	−.12^⁎⁎	−.05	.51^⁎⁎
Age	.07^⁎	−.09^⁎⁎	−.08^⁎⁎	−.02
Female	−.07^⁎	−.06^⁎	.02	.02	−.11^⁎⁎
Income	.14^⁎⁎	.11^⁎⁎	−.06^⁎	−.03	.14^⁎⁎	−.45^⁎⁎
Education level^a	.17^⁎⁎	.14^⁎⁎	−.06^⁎	−.07^⁎⁎	−.16^⁎⁎	−.09^⁎⁎	.27^⁎⁎
Household size	−.08^⁎⁎	.03	−.05	.00	−.25^⁎⁎	.05	−.08^⁎⁎	.00
Urbanization^b	.02	−.03	−.07^⁎⁎	−.07^⁎⁎	.03	.01	−.08^⁎⁎	−.03	.25^⁎⁎

0 = not yet attending any education; special (low-level) education; other sort of education/training/apprenticeship, 1 = kindergarten/primary, 2 = continued primary education or elementary secondary education, 3 = continued special (low-level) education, 4 = pre-university education, 5 = junior vocational training, 6 = senior vocational training, 7 = vocational colleges, 8 = vocational colleges 2nd tier, and 9 = university education.

From 1 = very high degree of urbanization to 5 = very low degree of urbanization.

^⁎⁎

p < 0.01.

^⁎

p < 0.05.