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Table 2 Summary of adequacy assessment of renal allograft 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 20 15 (75%) 0 (0%) 5 (25%) NA NA
2 270 152 (56%) 81 (30%) 37 (14%) −19% (4, 41) = 0.16
3 49 34 (69%) 9 (18%) 6 (12%) +13% (2, 28) = 0.11
  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.