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. Author manuscript; available in PMC: 2013 Jan 5.
Published in final edited form as: Acad Emerg Med. 2012 Jan 5;19(1):56–62. doi: 10.1111/j.1553-2712.2011.01251.x

Table 2.

Biomarker Levels: Appendicitis Compared to No Appendicitis

Median Biomarker, ng/ml No Appendicitis n = 118 Appendicitis (Perforated and non-perforated) n = 58 P value
Serum LRG 53,593 (29,898–117,492) 95,396 (67,198–144,734) <0.001
Urine LRG 225.2 (46.5–1,442.8) 683.5 (122.3–3,832.3) 0.008
Plasma calprotectin 221.9 (147.3–329.8) 330.1 (246.5–466.1) <0.001
Urine calprotectin 10.3 (5.0–46.7) 11.7 (5.5–31.3) NS

Median biomarker levels are presented with IQR (25%, 75%)

LRG = leucine-rich alpha glycoprotein-1