Table 1.
Selected descriptive characteristics of the CBASP studies included in the review
| Study | Sample sizea | Women (%) | Age (years) | Adherence (yes/no) | Attrition (%) | Outcome endpoint (week)b | ITT analysis (yes/no) | Duration (weeks) | Treatment | |
|---|---|---|---|---|---|---|---|---|---|---|
| Dosage (sessions) | Format | |||||||||
| Keller et al. (2000) | 681 | 65.3 | 43 | Yes | 24.3 | 12 | Yes | 12 | 16 | Individual |
| Kocsis et al. (2009) | 491 | 55.4 | 44.5 | Yes | 13.8 | 12 | – | 12 | 12.5 | Individual |
| Schramm et al. (2011a) | 30 | 55 | 40.2 | Yes | 10 | 16 | Yes | 16 | 22 | Individual |
| Wiersma et al. (2014) | 142 | 60 | 41.5 | Yes | 25 | 52 | Yes | 52 | 25.1 | Individual |
| Schramm et al. (2015) | 60 | 54 | 43.6 | Yes | 19 | 32 | Yes | 36 | 22 | Individual |
| Michalak et al. (2015) | 106 | 62.3 | 50.9 | Yes | 28.2 | 8 | Yes | 10 | 6–10c | Group |
ITT, intention‐to‐treat; CBASP, cognitive behavioral analysis system of psychotherapy.
a
Overall sample size of participants randomized to treatment and control conditions.
b
To aggregate effect sizes across studies, this primary outcome endpoint was used.
c
Two initial sessions were conducted individually. –: insufficient information provided.