Intervention | Number of studies/individuals | Effect sizes |
---|---|---|
Review | Â | Â |
Printed Educational Materials | 12 randomised trials | Median absolute improvement of care on categorical process outcomes (e.g., x-ray requests, prescribing and smoking cessation activities) of 4.3% (range −8.0% to +9.6%) across studies. |
 | 11 nonrandomised studies |  |
Farmer et al.[37] | Â | Â |
Educational Meetings | 81 randomised trials (involving more than 11,000 health professionals) | Median absolute improvement in care of 6.0% (interquartile range +1.8% to 15.3%). |
Forsetlund et al.[38] | Â | Â |
 |  | Larger effects were associated with higher attendance rates, mixed interactive and didactic meetings and interactive meetings. |
 |  | Smaller effects were observed for complex behaviours and for less serious outcomes. |
Educational Outreach | 69 randomised trials (involving more than 15,000 health professionals) | Median absolute improvements in: |
 |  | ·prescribing behaviours (17 comparisons) of 4.8% (interquartile range +3.0% to + 6.5%); |
O’Brien et al.[39] |  |  |
 |  | ·other behaviours (17 comparisons) of 6.0% (interquartile range +3.6% to +16.0%). |
 |  | The effects of educational outreach for changing more complex behaviours are less certain. |
Local Opinion Leaders | 18 randomised trials (involving more than 296 hospitals and 318 primary care physicians) | Median absolute improvement of care of 12.0% across studies (interquartile range +6.0% to +14.5%). |
Flodgren et al.[40] | Â | Â |
Audit and Feedback | 118 randomised trials | Median absolute improvement of care of 5.0% (interquartile range +3% to +11%). |
Jamtvedt et al.[41] | Â | Â |
 |  | In general, larger effects were seen if baseline compliance was low. |
Computerized Reminders | 28 randomised trials | Median absolute improvement of care of 4.2% (interquartile range +0.8% to +18.8%). |
Shojania et al.[42] | Â | Â |
 |  | Comment: Most studies have examined the effects of relatively simple reminders; the results of more complex decision support systems, especially for chronic disease management, have been less successful. |
Tailored Interventions | 26 randomised trials | Meta-regression using 12 randomised trials. Pooled odds ratio of 1.52 (95% CI, 1.27 to 1.82, p < .001) |
Baker et al.[43] | Â | Â |