Skip to main content
. 2023 May 23;21:32. doi: 10.1186/s12962-023-00440-0

Table 5.

Efficiency of MRI utilization in sample cities (2017)

City Cresta Vrestb Scale Return to scale
An Yang 0.599 0.869 0.689 irs
Jiao Zuo 0.576 0.674 0.855 irs
Kai Feng 0.912 1 0.912 irs
Nan Yang 0.727 1 0.727 irs
San MenXia 0.428 0.714 0.600 irs
Shang Qiu 0.990 1 0.990 irs
Xing Xiang 0.864 0.907 0.953 drs
Xin Yang 0.753 1 0.753 irs
Xu Chang 0.447 1 0.447 irs
Zheng Zhou 0.759 1 0.759 drs
Zhou Kou 1 1 1
Mean 0.732 0.924 0.790

Scale = scale efficiency = Crest/Vrest

aCrest technical efficiency from CRS DEA

bVrest technical efficiency from VRS DEA