Table 4

Performance of staging EBUS across GM and comparison to national quality standards

Trust 1
four operators
Trust 2
four operators 2017
five operators 2018
Trust 3
one operator 2017
two operators 2018
Trust 4
seven operators
Trust 5
two operators
2017201820172018201720182017201820172018
Total number of staging EBUS17020966721202911891422228
Number of inadequate staging procedures1%2%18%12%7%16%6%2%17%15%
Sensitivity
(target)
92%
(>80%)
90%
(>80%)
82%
(>85%)
93%
(>85%)
96%
(>85%)
93%
(>88%)
85%
(>85%)
86%
(>80%)
50%
(>75%)
82%
(>80%)
Negative predictive value
(target)
97%
(>90%)
96%
(>90%)
89%
(>85%)
95%
(>85%)
94%
(>85%)
90%
(>80%)
95%
(>90%)
93%
(>90%)
89%
(>90%)
88%
(90%)
Prevalence of N2/N3 disease29%30%41%43%58%61%41%35%18%39%
Mean number of lymph nodes sampled per procedure2.82.92.12.02.32.42.92.81.82.0
  • EBUS, endobronchial ultrasound.