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Table 3 Observed and expected number of cancers, SIR and 95% CI among Icelandair pilots and other pilots

From: Incidence of cancer among licenced commercial pilots flying North Atlantic routes

  Icelandair pilots Other pilots
Cancer site (ICD-10) Obs Exp SIR 95% CI Obs Exp SIR 95% CI
All (C00-C97, D09-D47a) 46 43.23 1.06 0.78 to 1.42 37 49.26 0.75 0.53 to 1.04
 Oesophagus (C15) 1 0.78 1.29 0.02 to 7.17 1 0.95 1.05 0.01 to 5.86
 Stomach (C16) 1 1.55 0.64 0.01 to 3.58 2 2.40 0.83 0.09 to 3.00
 Colon and rectum (C18, C20) 3 4.24 0.71 0.14 to 2.07 4 4.94 0.81 0.22 to 2.07
 Gallbladder (C23) 0 0.04 - 0.00 to 90.97 1 0.06 17.18 0.22 to 95.57
 Larynx (C32) 0 0.37 - 0.00 to 9.81 1 0.48 2.09 0.03 to 11.61
 Bronchus and lung (C33, C34) 2 5.10 0.39 0.04 to 1.42 3 5.78 0.52 0.10 to 1.52
 Bone (C41) 1 0.04 24.63 0.32 to 137.00 1 0.05 20.63 0.27 to 114.80
 Melanoma (C43) 6 1.10 5.48 2.00 to 11.92 1 1.02 0.98 0.01 to 5.45
 Other skin cancer (C44) 4 1.79 2.23 0.60 to 5.71 0 1.96 - 0.00 to 1.87
 Penis (C60) 0 0.14 - 0.00 to 25.37 1 0.17 5.90 0.08 to 32.82
 Prostate (C61) 15 11.78 1.27 0.71 to 2.10 13 13.14 0.99 0.53 to 1.69
 Kidney (C64) 5 1.99 2.51 0.81 to 5.86 0 2.23 - 0.00 to 1.64
 Bladder (C67) 0 3.03 - 0.00 to 1.21 4 3.53 1.13 0.31 to 2.90
 Eye (C69) 1 0.12 8.27 0.11 to 46.01 0 0.13 - 0.00 to 27.72
 Brain (C71, D33) 0 0.82 - 0.00 to 4.48 4 0.87 4.60 1.24 to 11.77
 Thyroid gland (C73) 3 0.68 4.44 0.89 to 12.97 0 0.73 - 0.00 to 5.01
 Cancer w/o specification of site (C80) 1 0.74 1.35 0.02 to 7.51 2 0.88 2.27 0.25 to 8.19
 Mature T/NK-cell lymphomas (C84.6) 1 0.16 6.07 0.08 to 33.77 0 0.15 - 0.00 to 23.74
 Chronic lymphocytic leukaemia (C91.1) 1 0.43 2.30 0.03 to 12.80 0 0.51 - 0.00 to 7.25
 Acute myeloid leukaemia (C92.0) 1 0.30 3.39 0.04 to 18.84 0 0.35 - 0.00 to 10.63
Not included in all cancers:         
Basal cell carcinoma of the skin (C44) 22 6.21 3.54 2.22 to 5.37 9 6.23 1.44 0.66 to 2.74
  1. Abbreviations: International Statistical Classification of Diseases and Related Health Problems 10th Revision (ICD-10), observed (Obs), expected (Exp), standardized incidence ratio (SIR), and confidence interval (CI).
  2. aRelated to brain: D09, D30, D35, D41, D32–33, D42–43, D44 and D46–47