Table 1.
Participant Characteristics and Substance Use by Family History Group
| FH+ (n = 31) | FH− (n = 44) | |||
|---|---|---|---|---|
| Variable | n (%) | n (%) | Test Statistic | |
| Sexa | Male | 7 (22.58) | 26 (59.09) | χ2(1) = 8.41* |
| Female | 24 (77.42) | 18 (40.91) | ||
| Race | American | 1 (3.23) | 0 (0.00) | |
| Indian/Alaska Native | 1 (3.23) | 4 (9.09) | Fisher’s p = .123 | |
| Asian | 1 (3.23) | 2 (4.55) | ||
| Black/African | 27 (87.10) | 30 (68.18) | ||
| American | 0 (0.00) | 6 (13.64) | ||
| White | 1 (3.23) | 2 (4.54) | ||
| Biracial | ||||
| No | ||||
| Response/“Unknown” | ||||
| Ethnicity | Hispanic | 7 (22.58) | 11 (25.00) | |
| Non-Hispanic | 24 (77.42) | 32 (72.73) | Fisher’s p = 1.000 | |
| No | 0 (0.00) | 1 (2.27) | ||
| Response/“Unknown” | ||||
| Alcohol Use Disorder | Past | 3 (9.68) | 1 (2.27) | Fisher’s p = .300 |
| Current | 1 (3.23) | 0 (0.00) | Fisher’s p = .413 | |
| Cannabis Use Disorder | Past | 1 (3.23) | 1 (2.27) | Fisher’s p = 1.000 |
| Current | 1 (3.23) | 1 (2.27) | Fisher’s p = 1.000 | |
| Mood Disorder | Past | 12 (38.71) | 6 (13.64) | χ2(1) = 4.97* |
| Current | 4 (12.90) | 2 (4.55) | Fisher’s p = .224 | |
| Anxiety Disorder | Past | 4 (12.90) | 0 (0.00) | Fisher’s p = .026* |
| Current | 9 (29.03) | 1 (2.27) | ||
| Fisher’s p = .001* | ||||
| Trauma- and Stressor-Related Disorder | Past | 7 (22.58) | 5 (11.36) | Fisher’s p = .216 |
| Current | 2 (6.45) | 2 (4.55) | Fisher’s p = 1.000 | |
| Have Ever Used e/Cigarettes More Than a Puff | 10 (32.26) | 21 (47.73) | χ2(1) = 121 | |
| High Motion in Scanner | 3 (9.677) | 6 (13.64) | Fisher’s p = .728 | |
| M (SD) | M (SD) | Test Statistic | ||
| Current Age | 21.02 (1.33) | 20.96 (1.37) | t(73) = 0.20 | |
| Age at First Use of Alcohol | 16.29 (1.99) | 16.59 (2.05) | t(73) = 0.63 | |
| AUDIT Score at Study Visit | 4.55 (2.59) | 4.61 (2.28) | t(73) = 0.12 | |
| Median (IQR) | Median (IQR) | Test Statistic | ||
| Times Used Marijuana in Past Yearb | 0.00 (5.00) | 1.00 (3.25) | W = 682.00 | |
| Percent Days Drank Alcohol in Past Yearc | 7 (15.00) | 10 (13.75) | W = 610.50 | |
| Percent of Scan Data Censored (% TRs) d | 2.31 (6.36) | 3.47 (10.33) | W = 622.00 | |
Note. FH+ = family history positive, FH− = family history negative, AUDIT = Alcohol Use Disorder Identification Test, IQR = interquartile range.
a
Participants reported their sex and gender to be the same (i.e., those who reported sex as female also reported gender as female).
b
Family history positive participants ranged from 0–365 times, and family history negative ranged from 0–100 times.
c
Family history positive participants ranged from 1–75%, and family history negative ranged from 0–60%.
d
Family history positive participants ranged from 0–24.57%, and family history negative ranged from 0–37.57%.
*
p < .05