Reliability and Validity of Modified Algometer in Abdominal Examination

Table 3

Two-by-two table using a new test at CV 14 for abdominal examination, and actual SH or SHK as the criterion test.

	Abdominal examination
	SHK	SH
PPT value by MA
≤330.0	10	9
>330.0	3	14
Sensitivity	76.92%
Specificity	60.87%
Positive predictive value	52.63%
Negative predictive value	82.35%

Sensitivity: 0.77 (10/13); specificity: 0.61 (14/23); positive predictive value: 0.53 (10/19); negative predictive value: 0.82 (14/17). SH: Simhabi; SHK: Simhabikyung; PPT: pressure pain threshold; MA: modified algometer.