Table 1.
Baseline characteristics of the study sample
| Variable | BPT (n = 79) | CBT (n = 77) | Total Sample (n = 156) | p-value | |||
|---|---|---|---|---|---|---|---|
| Age, M (SD) | 41.8 | (12.6) | 40.3 | (11.4) | 41.0 | (12.01) | 0.43 |
| Sex, n (%) female | 54 | (68.4) | 51 | (66.2) | 105 | (67.3) | 0.78 |
| BMI, M (SD) | 23.9 | (3.37) | 24.6 | (4.17) | 24.24 | (3.79) | 0.29 |
| Family status, n (%) | |||||||
| Single | 40 | (50.6) | 43 | (55.8) | 83 | (53.2) | 0.46 |
| Married/living in a partnership | 23 | (29.1) | 24 | (31.2) | 47 | (30.1) | |
| Separated/divorced/widowed | 16 | (20.3) | 10 | (13.0) | 26 | (16.7) | |
| School education, n (%) | |||||||
| < 9 years | 0 | (0.0) | 0 | (0.0) | 0 | (0.0) | 0.99 |
| 9 years | 9 | (11.4) | 9 | (11.7) | 18 | (11.5) | |
| 10 years | 18 | (22.8) | 17 | (22.1) | 35 | (22.4) | |
| ≥ 11 years | 52 | (65.8) | 51 | (66.2) | 103 | (66.0) | |
| Current occupation: yes, n (%) | 50 | (63.3) | 45 | (58.4) | 95 | (60.9) | 0.54 |
| Completed therapy in the past: yes, n (%) | 59 | (74.7) | 52 | (67.5) | 111 | (71.1) | 0.35 |
| PHQ, severity grade n (%) | |||||||
| Mild (up to 9 points) | 18 | (22.8) | 12 | (15.6) | 30 | (19.2) | 0.38 |
| Moderate (10–14 points) | 28 | (35.4) | 33 | (42.9) | 61 | (38.4) | |
| moderate to severe (15 to 19 points) | 19 | (24.1) | 23 | (29.9) | 42 | (26.9) | |
| Severe (20 points and above) | 14 | (17.7) | 9 | (11.7) | 23 | (14.7) | |
| First depressive episode: yes, n (%) | 19 | (24.1) | 19 | (24.7) | 38 | (24.4) | 0.93 |
| Number of depressive episodes, n (%) | |||||||
| 1–2 | 23 | (29.2) | 19 | (24.7) | 42 | (27.0) | 0.97 |
| 3–4 | 18 | (22.8) | 22 | (28.6) | 40 | (25.7) | |
| 5–10 | 8 | (10.2) | 10 | (13.0) | 18 | (11.4) | |
| > 10 or chronic depression (> 2 years) | 4 | (5.2) | 2 | (2.6) | 6 | (3.8) | |
| Study site, n (%) | |||||||
| Erlangen/Nuremberg region | 39 | (49.4) | 37 | (48.1) | 76 | (48.7) | 0.28 |
| Weyarn region | 20 | (25.3) | 27 | (35.1) | 47 | (30.1) | |
| Berlin region | 20 | (25.3) | 13 | (16.9) | 33 | (21.2) | |
| MADRS, M (SD) | 23.5 | (8.93) | 24.0 | (7.69) | 23.7 | (8.32) | 0.66 |
| PHQ-9 | 13.7 | (5.49) | 13.8 | (4.65) | 13.7 | (5.07) | 0.86 |
| Duration of intervention, M (SD) | 11.4 | (1.05) | 11.6 | (1.36) | 11.5 | (1.22) | 0.23 |
P-value stemming from Chi2-tests for categorical and from t-test for continuous variables
M Mean, MADRS Montgomery-Asberg Depression Rating Scale, SD Standard deviation, PHQ-9 = Patient Health Questionnaire