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. Author manuscript; available in PMC: 2018 Oct 1.
Published in final edited form as: Drug Alcohol Depend. 2017 Jul 29;179:153–158. doi: 10.1016/j.drugalcdep.2017.06.037

Table 1.

Sample characteristics by parental history of addiction (N=177).

Characteristics Frequency (%)

Neither n=59 One parent n=88 Both parents n=30 P value

Gender 0.045*
 Male 25 (42.4) 27 (30.7) 5 (16.7)
 Female 34 (57.6) 61 (69.3) 25 (83.3)
Employment 0.123
 Employed full-time 30 (50.8) 41 (46.6) 7 (23.3)
 Employed part-time 6 (10.2) 7 (8.0) 4 (13.3)
 Not currently employed 5 (8.5) 11 (12.5) 8 (26.7)
 Retired 5 (8.5) 8 (9.1) 1 (3.3)
 Self-employed 6 (10.2) 7 (8.0) 3 (10.0)
 Student 2 (3.4) 2 (2.3) 4 (13.3)
 Other 5 (8.5) 12 (13.6) 3 (10.0)
Marital Status 0.219
 Married 22 (37.3) 33 (37.5) 7 (23.3)
 Never married 10 (10.0) 17 (19.3) 9 (30.0)
 Divorced 19 (32.2) 23 (26.1) 6 (20.0)
 Separated 1 (1.7) 5 (5.7) 1 (3.3)
 Unmarried couple living together 4 (6.8) 10 (11.4) 6 (20.0)
 Widowed 3 (5.1) 0 (0.0) 1 (3.3)
Education level 0.380
 Some high school 0 (0.0) 2 (2.3) 0 (0.0)
 High school diploma or  equivalency 5 (8.5) 9 (10.2) 5 (16.7)
 Some college 21 (35.6) 27 (30.7) 12 (40.0)
 Associate degree 5 (8.5) 8 (9.1) 5 (16.7)
 Bachelor degree 20 (33.9) 30 (34.1) 4 (13.3)
 Master’s degree 5 (8.5) 11 (12.5) 4 (13.3)
 Doctoral degree 3 (5.1) 1 (1.1) 0 (0.0)
Primary Addiction 0.666
 Alcohol 32 (54.2) 53 (60.2) 14 (46.6)
 Cannabis products 3 (5.1) 2 (2.2) 3 (10.0)
 Nicotine 2 (3.4) 3 (3.4) 0 (0.0)
 Prescription pain relievers 10 (17.0) 15 (17.0) 8 (26.7)
 Stimulants 9 (15.3) 14 (15.9) 5 (16.7)
 Tranquilizers/Depressants 3 (5.0) 1 (1.1) 0 (0.0)
Income 0.510
 Less than $30,000 18 (30.5) 25 (28.4) 15 (50.0)
 $30,000 – $49,999 10 (16.9) 19 (21.6) 5 (16.7)
 $50,000 – $69,999 9 (15.3) 15 (17.0) 2 (6.7)
 $70,000 – $89,999 5 (8.5) 4 (4.5) 0 (0.0)
 $90,000 – $149,999 7 (11.9) 15 (17.0) 3 (10.0)
 $150,000 and above 4 (6.8) 3 (3.4) 1 (3.3)
 Prefer not to answer 6 (10.2) 7 (8.0) 4 (13.3)
Smoking Status 0.719
 No 40 (67.8) 65 (73.9) 21 (70.0)
 Yes 19 (32.2) 23 (26.1) 9 (30.0)
Delay Discounting
 Ln(k) (Mean (SD)) −6.41 (2.01) −6.25 (2.04) −5.02 (1.47) 0.004