Table 4

Relative ranking of door-to-needle time (DTN) quality improvement strategies

Standard mean difference improvementStandard mean difference DTN improvement rankRelative (%) DTN reduction
1.857Combination Strategies33.77
1.255Prompt Data Feedback30.74
1.185EMS Prehospital Notification26.16
0.999Non-Target Interventions25.04

  • Ranking is performed according to standard mean differences derived in the meta-analysis. Ranking descends from most improved (greatest DTN reduction) to least improved. Relative improvement calculated from mean DTN values for each study and category.