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Table 1 Demographics of European and Japanese databases and validation groups

From: Enhanced diagnostic accuracy for quantitative bone scan using an artificial neural network system: a Japanese multi-center database project

  EB BN1 BN2 Validation group
All Male Female
N 789 904 1,532 503 296 207
Age (years) 66 ± 12 64 ± 12 64 ±12 65 ± 11 68 ±9 59 ± 12
Male, N (%) 508 (64) 457 (51) 790 (52) 296 (59) - -
Bone metastases, N (%) 262 (33) 141 (16) 638 (42) 169 (34) 96 (32) 73 (35)
Types of cancer       
 Prostate, N (%) 425 (54) 267 (30) 451 (29) 207 (41) 207 (70) -
 Breast, N (%) 217 (28) 383 (42) 624 (41) 166 (33) - 166 (80)
 Others, N (%) 147 (19) 254 (28) 457 (30) 130 (26) 89 (30) 41 (20)
  1. EB, EXINIbone; BN1, BONENAVI version 1; BN2, BONENAVI version 2.