Table 2 Power calculations for secondary outcomes, calculated from a sample size of 324 participants
| Measure | Mean difference | Standard deviation of the pooled mean | Type I error | Reference | Power |
|---|---|---|---|---|---|
| No of days of competitive employment of education at 12 months | 60 days | 150 days | 5% | Kin W 2008 [21], Burns 2007 [14] | 95% |
| GAF-F | 5 | 15 | 5% | Hoffmann 2011 [19], Howard 2010 [58] | 85% |
| WHO-5 | 10 | 19 | 5% | Latimer 2006 [22], Burns 2009 [14] | 99% |
| HAM-D6 | 2 | 4 | 5% | Wang 2007 [10], Lexis 2011 [9], Brouwers 2006 [1], Van Oostrom 2010 [59] | 99% |
| HAM-A6 | 2 | 4 | 5% | Wang 2007 [10], Lexis 2011 [9], Brouwers 2006 [1], Van Oostrom 2010 [59] | 99% |
