Table 1.
Baseline characteristics for G-CBT and G-PFT groups
| G-CBT (N = 160) | G-PFT (N = 163) | χ2 or t statistic | P-value | ||
|---|---|---|---|---|---|
| Demographic characteristics | |||||
| Male,a n (%) | 43 (26.9) | 39 (24.1) | 0.33 | 0.56 | |
| Age, years, mean (s.d.) | 59.0 (10.9) | 58.9 (10.6) | −0.13 | 0.90 | |
| Race, n (%) | White | 89 (57.1) | 101 (64.3) | 0.06 | 0.11 |
| Asian | 16 (10.3) | 17 (10.8) | |||
| Black | 17 (10.9) | 6 (3.8) | |||
| Multi-racial/other | 34 (21.8) | 33 (21.0) | |||
| Hispanic/Latino, n (%) | 14 (9.3) | 13 (8.5) | 0.07 | 0.80 | |
| LGBT, n (%) | 22 (15.8) | 22 (16.3) | 0.01 | 0.92 | |
| Marital status, n (%) | Married | 40 (26.5) | 37 (24.2) | 1.74 | 0.42 |
| Divorced/widowed/separated | 55 (36.4) | 48 (31.4) | |||
| Never married/roommate | 56 (37.1) | 68 (44.4) | |||
| Number of people in household (adults and children), mean (s.d.) | 1.13 (0.74) | 0.94 (0.89) | 1.21 | 0.23 | |
| Children (yes/no), n (%) | 88 (56.4) | 97 (61.0) | 0.69 | 0.41 | |
| Employment status, n (%) | Employed (full or part time) | 54 (34.4) | 29 (25.0) | 3.41 | 0.33 |
| Unemployed/disabled | 55 (35.0) | 65 (41.7) | |||
| Retired | 37 (23.6) | 40 (25.6) | |||
| Other | 11 (7.0) | 12 (7.7) | |||
| Insurance status (insured versus underinsured or not insured), n (%) | 150 (95.5) | 144 (90.0) | 3.62 | 0.06 | |
| Education, mean (s.d.) | 15.3 (2.2) | 15.3 (2.4) | 0.01 | 0.90 | |
| Clinical characteristics | |||||
| Pre-treatment UHSS score, mean (s.d.) | 28.5 (5.5) | 29.8 (5.5) | 2.13 | 0.04 | |
| Pre-treatment SI-R score, mean (s.d.) | 64.5 (11.7) | 66.4 (11.6) | 1.53 | 0.13 | |
| Pre-treatment ADL-H score, mean (s.d.) | 29.9 (9.5) | 32.0 (11.2) | 1.85 | 0.07 | |
| Pre-treatment CI-R score, mean (s.d.) | 13.0 (4.8) | 14.0 (5.1) | 1.62 | 0.10 | |
| Pre-treatment SCI score, mean (s.d.) | 97.8 (29.7) | 100.2 (29.1) | 0.72 | 0.47 | |
| Pre-treatment MoCA score,b mean (s.d.) | 26.3 (2.9) | 26.2 (2.6) | −0.06 | 0.95 | |
| Pre-treatment NART, mean (s.d.) | 115.6 (6.9) | 116.0 (6.1) | 0.59 | 0.55 | |
| Pre-treatment BAI score, mean (s.d.) | 17.6 (12.5) | 18.6 (12.2) | 0.67 | 0.50 | |
| Pre-treatment BDI score, mean (s.d.) | 20.1 (12.2) | 19.4 (13.1) | −0.43 | 0.66 | |
| SNAP-IV total score, mean (s.d.) | 38.1 (15.0) | 36.1 (13.5) | 1.28 | 0.20 | |
| Excessive acquisition (yes/no), n (%) | 98 (64.5) | 87 (60.8) | 0.41 | 0.52 | |
| Poor insight, n (%) | 18 (11.3) | 21 (12.9) | 0.21 | 0.65 | |
| Age at symptom onset <18 v. ≥18 years, n (%) | 69 (45.1) | 69 (43.7) | 0.11 | 0.91 | |
| Any current or lifetime psychiatric diagnosis (not including hoarding disorder), n (%) | 96 (61.9) | 91 (59.5) | 0.13 | 0.72 | |
| Mean number of psychiatric diagnoses, mean (s.d.) | 0.12 (0.14) | 0.10 (0.12) | 1.29 | 0.20 | |
| Taking psychiatric medications, n (%) | 66 (41.8) | 76 (47.5) | 1.05 | 0.30 | |
| Moderate or high suicide risk, n (%) | 19 (12.1) | 13 (8.4) | 2.95 | 0.23 | |
ADL-H, Activities of Daily Living Scale in Hoarding Disorder; BAI, Beck Anxiety Inventory; BDI, Beck Depression Inventory; CI-R, Clutter Image Rating Scale; G-CBT, group psychiatrist-led cognitive–behavioural therapy; G-PFT, group peer-facilitated therapy; LGBT, lesbian, gay, bisexual and transgender community; MoCA, Montreal Cognitive Assessment; NART, National Adult Reading Test Full Scale IQ; SCI, Saving Cognition Inventory; SI-R, Saving Inventory, Revised; SNAP-IV, Swanson, Nolan and Pelham attention-deficit hyperactivity disorder Rating Scale; UHSS, University of California, Los Angeles Hoarding Severity Scale.
a. One participant in each group reported their gender as other.
b. MoCA data available for 60 participants in the G-CBT group and 80 participants in the G-PFT group.