Study | Farmer et al37 Self-monitoring of blood glucose | Heneghan et al38 Self-monitoring of oral anticoagulation | Pickup et al39 Self-monitoring of blood glucose | TASTE-IPD Self-management |
---|---|---|---|---|
Number of studies approached and declined19 27 | 100% participation | 52% participation | 100% participation | Ongoing |
Systematic search27 | ± Limited syntax | + | ± Limited syntax | + |
Efforts to include non-published data20 | + | + | − | − |
Intention-to-treat analysis27 | + | + | ? | + |
Clustering within studies preserved in analysis19 | + Random intercepts in 1-stage model | + 2-stage model | ± Preservation in 1-stage model unclear | + Random intercepts in 1-stage model |
Handling missing data within studies and impact on results27 | + | ? No information handling missing data | +/? No information impact missing data | + |
Impact of missing trials on results19 27 | NA | ? | NA | + Sensitivity analysis of aggregate data |
Impact of quality assessment on results19 | + Sensitivity analysis | − No analysis | − No analysis | + Sensitivity analysis |
NA, not applicable; +, present in study; ±, partly present in study; –, not present in study; ?, no information in publication.