International Scholarly Research Notices / 2013 / Article / Tab 1

Research Article

Comparison of the Kato-Katz, Wet Mount, and Formol-Ether Concentration Diagnostic Techniques for Intestinal Helminth Infections in Ethiopia

Table 1

Wet mount, Kato-Katz, and FEC techniques results compared to the gold standard from Atse Fasil General Elementary School, Northwest Ethiopia, March 10–June 30, 2008.

MethodResultGold standard Total (%) NPV95% CISensitivity95% CI
Positive (%)Negative (%)

Wet mount Positive 136 (38.4)0136 (38.4)44.0%0.42–0.4452.7%0.51–0.53
Negative 122 (34.5) 96 (27.1)218 (61.6)
FEC Positive 202 (57.1)0202 (57.1)63.2%0.60–0.6378.3%0.76–0.78
Negative 56 (15.8)96 (27.1)152 (42.9)
Kato-Katz Positive 209 (59.0)0209 (59.0)66.2%0.63–0.6281.0%0.79–0.81
Negative 49 (13.8)96 (27.1)145 (41.0)

FEC: formol-ether concentration, NPV: negative predictive value.

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