Table 1.

Details on Control Variables (N=528)

Variables	Coding	Mean (SD) or %
Age	Years	43.01 (2.78)
Gender	Female (0) – male (1)	45%
T8 cigarette smoking	Not at all (0) – 1.5 packs a day (6)	0.80 (1.55)
T8 being a professional	No (0) – yes (1)	51%
T8 being a skilled worker	No (0) – yes (1)	27%
T8 alcohol use	Never (0) – every day (7)	3.53 (2.08)
T8 marijuana use	Not at all (0) – every day (9)	1.11 (2.22)
T8 educational level	Less than high school diploma (1) – doctoral degree or equivalent (6)	3.27 (1.29)
T8 physical diseases	Number of diseases: 0 – 27	3.25 (2.55)
T5 unemployment 5 weeks or longer	No (0) – yes (1)	9.5%
T6 unemployment 5 weeks or longer	No (0) – yes (1)	8.3%
T7 unemployment 5 weeks or longer	No (0) – yes (1)	5.7%
T2 family income	Under $2,000 (0) – $50,000 or more (12)	8.81 (2.43)
T2 parental educational level	Grade or years of schooling completed: 0 – 20	13.70 (2.49)
T2 depressive mood	Not at all (0) – extremely (4)	1.09 (0.28)
T3 depressive mood	Not at all (0) – extremely (4)	1.05 (0.64)
T4 depressive mood	Not at all (0) – extremely (4)	1.12 (0.70)
T5 depressive mood	Not at all (0) – extremely (4)	1.04 (0.71)
T6 depressive mood	Not at all (0) – extremely (4)	0.88 (0.71)
T7 depressive mood	Not at all (0) – extremely (4)	1.04 (0.77)
T8 depressive mood	Not at all (0) – extremely (4)	0.91 (0.81)
T2 self-control	False (1) – true (4)	2.78 (0.49)
T3 self-control	False (1) – true (4)	2.77 (0.46)
T4 self-control	False (1) – true (4)	2.84 (0.49)
T5 self-control	False (1) – true (4)	2.99 (0.48)
T6 self-control	False (1) – true (4)	3.20 (0.46)
T7 self-control	False (1) – true (4)	3.11 (0.46)
T8 self-control	False (1) – true (4)	3.12 (0.47)