Table 2 Underlying traits, pre-scan risk factors for CIN and scan characteristics among the 53 patient pairs.
From: Risk of contrast induced nephropathy in the critically ill: a prospective, case matched study
| Â | Both Patients | Neither Patient | Contrast Patient Only | Noncontrast Patient Only | Contrast Associated Excess (95% CI) |
|---|---|---|---|---|---|
Diabetesa | 15 28% | 38 72% | 0 0% | 0 0% | Â |
Ventilated at time of CTa | 22 42% | 31 59% | 0 0% | 0 0% | Â |
Pressor use in 4 hrs before CTa | 2 4% | 51 96% | 0 0% | 0 0% | Â |
Liver Disease | 4 8% | 27 51% | 13 25% | 9 17% | -10% to 24% |
CHF (current or Class III/IV) | 2 4% | 41 77% | 3 6% | 7 13% | -20% to 5% |
Hypertension | 22 42% | 13 25% | 9 17% | 9 17% | -16% to 16% |
New sepsis before scan | 0 0% | 37 70% | 8 15% | 8 15% | -15% to 15% |
Nephrotoxin in 3 days pre-scan | 6 11% | 29 55% | 10 19% | 8 15% | -12% to 19% |
Trimethoprim/cimetidine pre-scan | 0 0% | 47 89% | 3 6% | 3 6% | -11% to 11% |
Body area scanned | Â | Â | Â | Â | Â |
   Head | 10 19% | 12 23% | 9 17% | 22 42% | -42% to -4% |
   Chest | 14 26% | 10 19% | 21 40% | 8 15% | 5% to 42% |
   Abdomen/pelvis | 7 13% | 23 43% | 20 38% | 3 6% | 15% to 46% |