Characteristics of the included non-RCTs
| Author, year, country | Sickness absence duration prior to the intervention | Follow-up | Intervention(s) | Comparator(s) | Sample size, dropouts | Difference in RTW between intervention(s) and comparator |
| Grossi and Santell,28 2009, Sweden | 1–3 years | 5 years | Care as usual+group rehabilitation programme+individual rehabilitation meetings | Care as usual | n=24, n=0 | n.s. |
| Karlson et al, 29 30 2010+2014, Sweden | 2–6 months | 2010: 18 months 2014: 30 months | Care as usual+convergence dialogue meeting | Care as usual | 2010: n=148, n=18 2014: n=136, n=12 | s. |
n.s., non-significant; RCTs, randomised controlled trials; RTW, return to work; s., significant.