1. Effectiveness of Interferential Current Therapy in the Management of Musculoskeletal Pain: A Systematic Review and Meta-Analysis by Jorge P. Fuentes, Susan Armijo Olivo, David J. Magee, and Douglas P. Gross ptjournal Volume 90(9):1219-1238 August 31, 2010 © 2010 American Physical Therapy Association

2. Study screening process. Jorge P. Fuentes et al. PHYS THER 2010;90:1219-1238 © 2010 American Physical Therapy Association

3. Jorge P. Fuentes et al. PHYS THER 2010;90:1219-1238 © 2010 American Physical Therapy Association

4. Jorge P. Fuentes et al. PHYS THER 2010;90:1219-1238 © 2010 American Physical Therapy Association

5. Jorge P. Fuentes et al. PHYS THER 2010;90:1219-1238 © 2010 American Physical Therapy Association

6. Jorge P. Fuentes et al. PHYS THER 2010;90:1219-1238 © 2010 American Physical Therapy Association

7. Jorge P. Fuentes et al. PHYS THER 2010;90:1219-1238 © 2010 American Physical Therapy Association

8. Methodological Quality of the Studiesa. Jorge P. Fuentes et al. PHYS THER 2010;90:1219-1238 © 2010 American Physical Therapy Association

9. Forest plot of comparison: interferential current therapy (IFC) alone versus placebo treatment on pain intensity at 1 week and 4 weeks (data presented as change scores). Jorge P. Fuentes et al. PHYS THER 2010;90:1219-1238 © 2010 American Physical Therapy Association

10. Forest plot of comparison: interferential current therapy (IFC) alone versus comparison treatment on pain intensity at 3 weeks and 8 weeks (data presented as change scores). Jorge P. Fuentes et al. PHYS THER 2010;90:1219-1238 © 2010 American Physical Therapy Association

11. Forest plot of comparison: interferential current therapy (IFC) as a supplemental treatment versus control treatment on pain intensity at 1 day and 4 weeks (data presented as change scores). Jorge P. Fuentes et al. PHYS THER 2010;90:1219-1238 © 2010 American Physical Therapy Association

12. Forest plot of comparison: interferential current therapy (IFC) as a supplemental treatment versus placebo treatment on pain intensity at 1-week, 2-week, 4-week, and 3-month follow-ups (data presented as change scores). Jorge P. Fuentes et al. PHYS THER 2010;90:1219-1238 © 2010 American Physical Therapy Association

13. Forest plot of comparison: interferential current therapy (IFC) as a supplemental treatment versus comparison treatment on pain intensity at 1 day, 2 weeks, 4 weeks, and 2 months (data presented as change scores). Jorge P. Fuentes et al. PHYS THER 2010;90:1219-1238 © 2010 American Physical Therapy Association