Table 1.
Characteristics of Young Adult Cannabis Users Recruited in Boston from 2015 to 2016
| No Psychiatric Diagnosis (PD−; n=25) | Psychiatric Diagnosis (PD+; n=25) | p-value | |
|---|---|---|---|
|
Demographics
| |||
| Gender (n, (%) Female) | 7 (28) | 15 (60) | 0.02 |
| Age (years) | 20.9 (1.3) | 21.0 (1.8) | 0.79 |
| Education (years) | 14.5 (1.0) | 14.5 (1.6) | 0.45 |
| Race (%) | |||
| White | 68 | 64 | |
| Black | 20 | 4 | 0.22 |
| Asian | 4 | 4 | |
| More than One Race | 8 | 24 | |
| Other | 0 | 4 | |
| Ethnicity (n, (%) Hispanic) | 2 (8) | 3 (12) | 0.64 |
| IQ (WTAR) | 108.4 (8.4) | 107.2 (8.9) | 0.60 |
|
Psychiatric History | |||
| General Anxiety Symptom Subscale Score (MASQ) | 20 (6.1) | 21.8 (5.6) | 0.28 |
| Anxious Arousal Subscale Score (MASQ) | 22.8 (3.9) | 25.6 (5.2) | 0.03 |
| General Depressive Symptom Subscale Score (MASQ) | 22.4 (8.3) | 25.9 (7.8) | 0.13 |
| Anhedonic Depression Subscale Score (MASQ) | 52.3 (12.6) | 60.7 (12.8) | 0.02 |
| SCID-IV Psychiatric Diagnoses (Current/Lifetime; n) | |||
| Major Depressive Disorder | N/A | 1/23 | – |
| Bipolar I | N/A | 1/1 | – |
| Panic Disorder | N/A | 2/2 | – |
| Agoraphobia | N/A | 1/1 | – |
| Social Phobia | N/A | 0/0 | – |
| Specific Phobia | N/A | 0/1 | – |
| Obsessive Compulsive Disorder | N/A | 0/1 | – |
| Post Traumatic Stress Disorder | N/A | 1/3 | – |
| Generalized Anxiety Disorder (current only) | N/A | 4 | – |
| Anorexia | N/A | 0/0 | – |
| Bulimia | N/A | 1/2 | – |
| Psychotic Disorders | N/A | 0/0 | – |
| Co-Morbidity (n, (%) with 2+ SCID-IV Diagnoses) | N/A | 8 (32%) | – |
|
Alcohol Use | |||
| Age of Initiation (years) | 15.1 (1.9) | 14.9 (2.2) | 0.73 |
| Past 90 Day Alcohol Use | |||
| Days Alcohol Consumed | 27 (14.1) | 21.8 (11.5) | 0.15 |
| Drinks Consumed (Mdn, IQR) | 87.0 [70, 127] | 71.0 [48, 154] | 0.21 |
| Dependence Symptoms (AUDIT) | 9.2 (6.8) | 8.2 (4.7) | 0.53 |
| Alcohol Use During Intervention | |||
| Drinking Days in 1st Week/Overall | 3.0 (1.9)/10.1 (5.5) | 3.5 (2.6)/11.0 (5.8) | 0.46/0.57 |
|
Cannabis Use | |||
| Age of Initiation (First Use) | 15.9 (2.1) | 15.9 (1.7) | 1.00 |
| Past 90 Day Cannabis Use | |||
| Days Cannabis Consumed | 44.1 (22.5) | 63.5 (22.5) | 0.004 |
| Total Times Cannabis Consumed | 101.0 (77.9) | 159.7 (176.7) | 0.14 |
| Grams Consumed (Mdn, IQR) | 20.7 [7.8, 55.5] | 36.5 [11.6, 81.0] | 0.18 |
| Dependence Symptoms (CUDIT) | 14.0 (6.3) | 14.3 (4.5) | 0.82 |
| Days Since Last Use (Mdn, IQR) | 1 [1, 2] | 1 [1, 1] | 0.07 |
| 30-Day Abstinence (n, (%) Abstinent) | 22 (88%) | 22 (88%) | – |
Note: All values are means, standard deviations, unless otherwise noted; AUDIT, Alcohol Use Disorders Identification Test; CUDIT, Cannabis Use Disorder Identification Test; CN-THCCOOH, creatinine-adjusted THCCOOH levels; FSIQ, Wechsler Test of Adult Reading Full Scale IQ; IQR, Interquartile range; MASQ, Mood and Anxiety Symptom Questionnaire; Mdn, Median; MJ, cannabis; SCID-IV, Structured Clinical Interview for DSM-IV; TLFB, Timeline Followback (past 30 and 90 days).