Figures & data
Table 1. Summary of study characteristics of surgical hip fracture trials in our systematic review
Table 2. The number of randomized controlled trials and combined sample size on a national basis
Figure 2. World map showing the cumulative sample sizes of randomized controlled trials on hip fracture, by city.
![Figure 2. World map showing the cumulative sample sizes of randomized controlled trials on hip fracture, by city.](/cms/asset/4c5cd694-37c0-4105-a74d-65a8cbfa31dc/iort_a_704562_f0002_b.jpg)
Table 3. Geographic distribution of multicenter trials