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. 2021 Jun 30;17:669–677. doi: 10.2147/TCRM.S308194

Table 2.

Characteristics of irAEs

All Patients (n=201)
Potential irAEs, n (mean by patient)
 Total 391 (1.95)
 With prior IMS consultation 243 (1.88)
 Without prior IMS consultation 148 (2.06)
Potential irAEs by patient
 Median (IQR: 25–75th) 2 (1–3)
Patients with potential irAEs, n (%)
 Yes 165 (82)
 With prior IMS consultation 102 (79% of 129)
 Without prior IMS consultation 63 (88% of 72)
AE sites, n (%)* (n=391)*
 Endocrine 26 (7)
  HPA axis 1 (<1)
  Pancreas (diabetes) 1 (<1)
  Thyroid 24 (6)
 Dermatological 70 (18)*
  Skin 61 (16)
  Mucosa 12 (3)
 Rheumatological 33 (8)*
  Joints 23 (6)
  Muscles 14 (4)
 Liver 19 (5)
 Gastrointestinal 82 (21)
 Lungs 75 (19)
 Catheter 36 (9)
  Port-a-Cath 27 (7)
  PICC line 9 (2)
Other sites 163 (42)*
  Cardiovascular 9 (2)
  Kidneys 1 (<1)
  Haematological 26 (7)
  Systemic (whole body) 84 (21)
  Hydroelectrolytic 3 (<1)
  Immunological 2 (<1)
  Nerves 1 (<1)
  Neuro-psychiatric 22 (6)
  Otorhinolaryngological 13 (3)
  Change in taste 5 (1)
  Sexual 1 (<1)
  Teeth 1 (<1)
  Urological 10 (3)
Infection associated AEs, n (%) 118 (30)
Estimated AE grade
 Grade 1 155 (40)
 Grade 2 117 (30)
 Grade 3 94 (24)
 Grade 4 9 (2)
 Grade 5 15 (4)
 Not estimable 1 (<1)
Estimated probability of being an irAE
 Unlikely 98 (25)
 Likely 183 (47)
 Very likely 81 (21)
 Almost confirmed 29 (7)
Time until AE
 Median (IQR: 25–75th) 4 (2–9)
Depending on estimated severity
 Grade 1 4 (2–8)
 Grade 2 3 (2–9)
 Grade 3 4 (2–7)
 Grade 4 2 (2–8)
 Grade 5 2 (1–2)

Note: *One AE could involve several sites.

Abbreviations: AE, adverse event; HPA axis, hypothalamic–pituitary–adrenal axis; IQR, interquartile range; irAE, immune-related adverse event; PICC line, peripherally inserted central catheter line.