Table 3.
Baseline Characteristics in Completers and Non-completers of the MBCT.
| MBCT (n = 31) | Completers MBCT (n = 26) | Non-completers MBCT (n = 5) | p value | |
|---|---|---|---|---|
| Demographic and clinical characteristics; n (%) | ||||
| Female gender | 16 (52) | 12 (46) | 4 (80) | .33a |
| Age; M (SD) | 38 (12.4) | 36 (11.9) | 51 (4.5) | <.01** |
| ADHD medication | 17 (55) | 15 (58) | 2 (40) | .64a |
| Level of education | 1.0a | |||
| Low | 3 (12) | 3 (13) | - | |
| Middle | 9 (35) | 8 (35) | 1 (33) | |
| High | 14 (54) | 12 (52) | 2 (67) | |
| Subtype of ADHD | .28a | |||
| Inattentive type | 14 (45) | 13 (50) | 1 (20) | |
| Hyperactive-impulsive type | - | - | - | |
| Combined type | 14 (45) | 10 (39) | 4 (80) | |
| Not otherwise specified type | 3 (10) | 3 (12) | - | |
| Years since ADHD diagnosis; M (SD) | 3 (3.7) | 3 (3.1) | 5 (6.3) | .49 |
| Comorbidity Axis 1 DSM-IV | 16 (52) | 12 (46) | 4 (80) | .33a |
| Comorbidity Axis 2 DSM-IV | 9 (29) | 7 (27) | 2 (40) | .61a |
| Outcome measures; M (SD) | ||||
| ADHD symptoms, CAARS self-report | ||||
| Inattention | 15.7 (3.5) | 16.0 (3.6) | 14.0 (2.2) | .30 |
| Hyperactive-impulsive | 12.5 (3.0) | 12.4 (2.9) | 13.3 (3.5) | .61 |
| Executive functioning, BRIEF-ASR | 150.4 (17.8) | 148.1 (17.9) | 165.5 (6.8) | <.01** |
| Mindfulness skills, FFMQ-SF | 73.6 (8.3) | 74.2 (8.2) | 69.3 (9.2) | .27 |
| Self-compassion, SCS-SF | 42.9 (12.2) | 43.8 (11.8) | 36.5 (14.4) | .27 |
| Patient functioning, OQ 45.2 | 73.2 (20.1) | 69.5 (18.2) | 97.3 (16.5) | <.01** |
| Health status, SF-12 | ||||
| Physical health | 38.1 (7.2) | 39.2 (7.0) | 30.6 (3.2) | .02* |
| Mental health | 35.4 (10.0) | 37.2 (9.2) | 24.2 (8.2) | .01* |
Note. Improvement is indicated by a decrease in scores on the CAARS, BRIEF-ASR, and OQ 45.2 and an increase in scores on the FFMQ-SF, SCS-SF, and SF-12. MBCT = Mindfulness-Based Cognitive Therapy; DSM-IV = Diagnostic and Statistical Manual of Mental Disorders, 4th Edition; CAARS = Conners’ Adult ADHD Rating Scale; BRIEF-ASR = Behavior Rating Inventory of Executive Function–Adult Self-Report Version; FFMQ-SF = Five Facet Mindfulness Questionnaire Short Form; SCS-SF = Self-Compassion Scale Short Form; OQ = Outcome Questionnaire; SF-12 = Short Form of the Health Survey. aChi-Square. * Statistical significant difference for <.05. ** Statistical significant difference for <.01.