Studies included in the systematic review (n=41) by summary health outcomes and by the search strategy used to identify each study
| Outcomes | Generic search | Specific search | Both searches |
| Abdominal pain | 1 | ||
| Back pain | 2 | ||
| Diabetes | 1 | 6 | |
| Epilepsy | 3 | ||
| Headache | 2 | 7 | 1 |
| General physical health/well-being | 5 | ||
| Multiple physical health outcomes* | 11 | 2 | |
| Total (for each search) | 21 | 17 | 3 |
↵* A range of health outcomes were included in these studies: usually involving measures of general health and bodily pain. See tables in supplemental document 2.