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. Author manuscript; available in PMC: 2017 Apr 1.
Published in final edited form as: Urology. 2016 Jan 6;90:39–44. doi: 10.1016/j.urology.2015.12.037

TABLE 2.

Endoscopic mapping data.

Struvite CaOx P PCNL Controls P
Endoscopic mapping, N 29 90 17
    Plaque, N (%) 28 (97) 90 (100) 15 (88)
    Mean SA, % (SD) 1.5 (±1.4) 3.7 (±4.3) 0.0018 1.7 (±2.7) 0.76
    Max SA, % (SD) 3.6 (±4.4) 8.4 (±11.2) 0.0028 3.1 (±4.1) 0.61

    Plug, N (%) 9 (31) 40 (44) 2 (12)
    Mean SA, % (SD) 0.3 (±0.8) 0.8 (±2.8) 0.14 0 (±0.1) 0.13
    Max SA, % (SD) 0.8 (±1.8) 2.1 (±5.5) 0.16 0.1 (±0.4) 0.14

CaOx = calcium oxalate stone formers

SA = surface area