Table 4

Risk factors for AKI in patients receiving ICPi

VariableOR (95% CI)P value
Univariable analysis
 Age1.02 (0.99 to 1.04)0.17
 Female sex0.58 (0.31 to 1.10)0.1
 Baseline sCr (per 0.1 mg/dL or 9 umol/L)1.02 (0.90 to 1.16)0.72
 Charlson score1.16 (1.01 to 1.33)0.042
 Other IRAE3.19 (1.68 to 6.05)<0.001
 Cerebrovascular disease9.24 (2.13 to 40.0)0.003
 Chronic heart failure1.27 (0.14 to 11.6)0.83
 COPD/asthma0.68 (0.10 to 4.70)0.69
 Dementia2.58 (0.46 to 14.5)0.28
 Depression1.29 (0.41 to 4.02)0.66
 Diabetes1.78 (0.75 to 4.20)0.19
 Hypertension4.27 (2.28 to 8.01)<0.001
 Myocardial infarction1.91 (0.58 to 6.26)0.29
 Rheumatic disease1.25 (0.14 to 11.4)0.84
 ACE/ARBi2.90 (1.47 to 5.69)0.002
 PPI1.90 (0.83 to 4.35)0.13
 Diuretics4.34 (1.93 to 9.79)<0.001
 NSAIDs0.77 (0.17 to 3.52)0.74
 Steroids1.94 (1.06 to 3.57)0.033
 Antibiotics1.22 (0.81 to 1.86)0.34
Multivariable analysis
 Other IRAE2.82 (1.45 to 5.48)0.002
 Hypertension2.96 (1.33 to 6.59)0.008
 Use of ACE/ARBi1.18 (0.51 to 2.72)0.69
 Use of diuretics1.96 (0.78 to 4.94)0.15
Sensitivity* multivariable analysis
 Other IRAE5.59 (2.18 to 14.33)<0.001
 Hypertension1.66 (0.59 to 4.65)0.34
 Use of ACE/ARBi1.60 (0.54 to 4.70)0.39
 Use of diuretics2.33 (0.68 to 7.95)0.18
  • *Sensitivity analysis includes only AKI events that were biopsy- or nephrologist-confirmed to be ICPi-related or possible ICPi-related (ie, excluding AKI events likely related to other causes); n=288.

  • ACE, angiotensin-converting enzyme; AKI, acute kidney injury; ARBi, angiotensin-receptor blocker inhibitors; COPD, chronic obstructive pulmonary disease; ICPi, immune checkpoint inhibitors; IRAE, immune-related adverse event; NSAIDs, non-steroidal anti-inflammatory drugs; PPI, proton pump inhibitors.