Table 1

Number of studies producing an improved outcome as a function of the intervention intention and associated percentage and significance tests.
Intention
 Numbera
 Percentage
 Exact Sig (2-sided)b
 Odds Ratio
 95% CI Lower
 Upper
Training and feedback
 2/14
 14
 .006*
 8.00
 1.635
 39.142
Care management
 13/22
 59
 .31
 .538
 .193
 1.498
Enhancements or extensions
 6/15
 40
 .389
 .556
 .174
 1.775
Self help in general practice
 3/6
 50
 1.00
 .939
 .176
 5.0
Teams external to the practice
 0/2
 0
 -
 -
 -
 -
Community based health professionals
 0/3
 0
 -
 -
 -
 -
Health maintenance
 5/8
 63
 .402
 .408
 .116
 2.401
Broad community.
 3/6
 50
 1.00
 .939
 .176
 5.009

Note: a Number refers to the number of studies with a positive outcome relative to the number of studies with the intention present. b Chi-Square. ORs were only undertaken for categories with six or more comparisons.

Christensen et al. BMC Family Practice 2008 9:25   doi:10.1186/1471-2296-9-25