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Table 4 Statistical analysis of activity indexes, blood tests, and fecal markers.

From: Inflammatory bowel disease activity assessed by fecal calprotectin and lactoferrin: correlation with laboratory parameters, clinical, endoscopic and histological indexes

  Sensitivity Specificity PPV NPV Accuracy
CDAI 26,1% 100% 100% 46,9% 55,3%
CRP 63,6% 73,5% 75,7% 61% 67,9%
Lactoferrin 93,2% 76,5% 83,7% 89,7% 85,9%
Calprotectin 88,6% 97,1% 97,5% 86,8% 92,3%