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. 2017 Aug 31;11(2):207–218. doi: 10.1093/ckj/sfx093

Table 4.

Risk categories for renal survival by interstitial inflammation and interstitial fibrosis and tubular atrophy on initial biopsy (n = 301)

Number of patients (% total) Interstitial inflammation <5%, n (%) Interstitial inflammation ≥5–25%, n (%) Interstitial inflammation ≥25–50%, n (%) Interstitial inflammation ≥50%, n (%)
IFTA <5%

  • 107 (36)

  • ESRD/RRT 10%

  • Mortality 10%

  • 38 (13)

  • ESRD/RRT 8%

  • Mortality 5%

  • 7 (2)

  • ESRD/RRT 14%

  • Mortality 29%

  • 6 (2)

  • ESRD/RRT 50%

  • Mortality 33%
IFTA ≥5–25%

  • 31 (10)

  • ESRD/RRT 6%

  • Mortality 3%

  • 39 (13)

  • ESRD/RRT 21%

  • Mortality 13%

  • 12 (4)

  • ESRD/RRT 8%

  • Mortality 17%

  • 9 (3)

  • ESRD/RRT 55%

  • Mortality 22%
IFTA ≥25–50%

  • 2 (<1)

  • ESRD/RRT 0%

  • Mortality 50%

  • 12 (4)

  • ESRD/RRT 17%

  • Mortality 25%

  • 10 (3)

  • ESRD/RRT 40%

  • Mortality 10%

  • 8 (3)

  • ESRD/RRT 63%

  • Mortality 25%
IFTA ≥50%

  • 4 (1)

  • ESRD/RRT 50%

  • Mortality 25%

  • 5 (2)

  • ESRD/RRT 60%

  • Mortality 40%

  • 2 (<1)

  • ESRD/RRT 50%

  • Mortality 0%

  • 9 (3)

  • ESRD/RRT 56%

  • Mortality 44%

Green, low risk (n = 176, 9% ESRD or RRT, 8% mortality); yellow, intermediate risk (n = 72, 17% ESRD or RRT, 18% mortality); red, high risk (n = 53, 51% ESRD or RRT, 26% mortality).