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Table 1 Incidence of NEN in Japan in 2016

From: Recent epidemiology of patients with gastro-entero-pancreatic neuroendocrine neoplasms (GEP-NEN) in Japan: a population-based study

Primary tumor site Newly diagnosed number in 2016 Adjusted incidence /100,000 population in 2016
Male Female All cases Male Female All cases
Pancreas 707 629 1336 0.362 0.335 0.697
Esophagus 200 62 262 0.074 0.025 0.098
Stomach 775 267 1042 0.309 0.120 0.482
Duodenum 264 178 442 0.112 0.083 0.195
Jejunum/Ileum 65 32 97 0.031 0.016 0.046
Appendix 55 50 105 0.039 0.035 0.074
Colon 157 121 278 0.069 0.050 0.118
Rectum 1911 1262 3173 1.099 0.723 1.822
GI-NEN 3427 1972 5399 1.733 1.051 2.835
All cases 4134 2601 6735 2.094 1.385 3.532
  1. Incidence was age-adjusted annual incidence per 100,000 to the standard population in Japan
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