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. Author manuscript; available in PMC: 2016 Apr 11.

Published in final edited form as: J Gastroenterol Hepatol Res. 2013 Apr 21;2(4):513–519. doi: 10.6051/j.issn.2224-3992.2013.02.244

Table 1.

Shows the 2 by 2 table.

	Signal Detected	Signal Not Detected
Signal Present	True positive	False negative
Signal Absent	False positive	True negative

Sensitivity=true positive/true positive+false negative.