Table 1. Study quality descriptive statistics.
| Characteristic | k | % | Mean | SD |
|---|---|---|---|---|
| Includes active control condition | 72 | 50.70 | ||
| Includes therapeutic control condition | 65 | 45.77 | ||
| Includes EBT control condition | 27 | 19.01 | ||
| Sample size | 84.54 | 71.19 | ||
| Includes follow-up assessment | 79 | 55.63 | ||
| Longest follow-up (months, all studies) | 3.58 | 5.11 | ||
| Longest follow-up (months, studies with follow-up) | 6.43 | 5.36 | ||
| Treatment fidelity assessed | 46 | 32.39 | ||
| Instructor mindfulness training reported | 104 | 73.24 | ||
| Protocol specific mindfulness training reported | 90 | 63.38 | ||
| ITT analysis reported | 93 | 65.49 | ||
Notes: k = number of studies with given characteristic (out of 142 total studies); EBT = evidence-based treatment; ITT = intent-to-treat.