Table 3

Articles excluded from the meta-analysis due to incomplete European Neuroendocrine Tumor Society (ENETS) grading system and/or Kaplan–Meier plots only

AuthorPatient demographicKi-67 notes
Ki-67 labelling index (%)5-Year survival (%)No.
Panzuto et al14185 consecutive patients (96 patients stained), pancreatic endocrine tumour+gastrointestinal carcinoids. Surgical resection and biopsy≤290.158
>253.538
Bettini et al15180 consecutive patients (49 patients stained), non-functioning pancreatic tumours. Surgical resection only≤293.777
>250.275
Hamilton et al12140 consecutive patients, pancreatic neuroendocrine tumours (NETs). Surgical resection and biopsy≤28943
3–208078
>202019
Hoej et al16161 consecutive patients, small intestine NETs tumours. Surgical resection only≤285
3–2050
>200
Ahmed et al13360 consecutive patients (112 stained) midgut NETs with liver metastases. Surgical resection and biopsy≤28260
>2–206545
>2006