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Table 1 Summary of adequacy assessment of native renal biopsies

From: Percutaneous native renal biopsy adequacy: a successful interdepartmental quality improvement activity

Period Total biopsies (n) Adequate biopsies (n,%) Suboptimal biopsies (n,%) Inadequate biopsies (n,%) Difference in adequacy (%)* p value
1 127 40 (31%) 43 (34%) 44 (35%) NA NA
2 432 311 (72%) 54 (13%) 67 (16%) +40% (31, 50) < 0.0001
3 104 94 (90%) 2 (2%) 8 (8%) +18% (8, 29) <0.0001
  1. *Change of percentage of adequacy in the period in question compared to the preceding period, i.e. comparing period 2 to period 1, and comparing period 3 to period 2.