| Study | Reason for exclusion |
|---|---|
| Field 2005 | Methodology ‐ review (non‐systematic) |
| Gore‐Felton 2003 | Methodology ‐ descriptive only |
| Henrikson 2001 | Methodology ‐ case control, quasi‐experimental |
| Ironson 1996 | Methodology ‐ no control group |
| Mills 2005 | Methodology ‐ systematic review |
| Ownby 2006 | Methodology ‐ repeated measures, n=1 design |
| Ozsoy 1999 | Methodology ‐ systematic review |
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