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Table 2 Staging and clinical measurements for lung cancer patients from index date by subsequent clinic visit

From: Understanding the patient journey to diagnosis of lung cancer

Visit Characteristics Patients with confirmed diagnosis of lung cancer, Index Date Visit one following index visit Visit two following index visit Visit three following index visit Visit 4 + all visits up to end of study period
  N = 1496 N = 1275 N = 1002 N = 752 N = 564
Days (median (IQR)) between visits   4 (1,11) 5 (1,12) 5 (1,12) 6.5 (1,25)
Cumulative days from index visit (median (IQR))   4 (1,11) 11 (4,25) 20 (8, 51) 48 (16, 268)
LDCT scan 9 (0.60) 3 (0.24) 1 (0.10) 0 (0.00) 2 (0.35)
Chest Imaging 1085 (72.53) 434 (34.04) 331 (33.03) 263 (34.97) 443 (78.55)
E&M 577 (38.57) 675 (52.94) 446 (44.51) 338 (44.95) 379 (67.20)
EBUS/mediastinoscopy 29 (1.94) 42 (3.29) 34 (3.39) 33 (4.39) 106 (18.79)
Biopsya 116 (7.75) 252 (19.76) 250 (24.95) 183 (24.34) 439 (77.84)
PET CT 20 (1.34) 47 (3.69) 69 (6.89) 44 (5.85) 119 (21.10)
Brain MRI 45 (3.01) 33 (2.59) 27 (2.69) 10 (1.33) 44 (7.80)
Bone scan 4 (0.27) 8 (0.63) 6 (0.60) 5 (0.66) 7 (1.24)
SPN diagnosis 1066 (71.26) 786 (61.65) 625 (62.38) 462 (61.44) 515 (91.31)
Lung cancer diagnosis madeb 221 (14.77) 273 (18.24) 250 (16.71) 188 (12.57) 564 (37.70)
AJCC Stage at diagnosis
Stage 0    1 (0.40)   8 (1.42)
Stage I 38 (17.19) 47 (17.22) 41 (16.40) 35 (18.62) 147 (26.06)
Stage II 20 (9.05) 13 (4.76) 24 (9.60) 14 (7.45) 37 (6.56)
Stage III 39 (17.64) 53 (19.41) 56 (22.40) 52 (27.66) 127 (22.52)
Stage IV 114 (51.58) 156 (57.14) 124 (49.60) 81 (43.09) 232 (41.13)
Unknown, not staged 10 (4.52) 4 (1.47) 4 (1.60) 6 (3.19) 13 (2.30)
  1. aall biopsy types from REACHnet database. Excludes EBUS/Mediastinoscopy (counted separately) and biopsy of the pleura
  2. b% relative to the total number of cancer patients (N = 1496)