Role of MSCT in the diagnosis of perforated gall bladder (a retrospective study)

Egyptian Journal of Radiology and Nuclear Medicine

Table 5 Chi-squared independence test (non-parametric test) for the measurement of expectation between CT and US imaging type II GBP

Test statistics
	CT imaging findings type IIGBP	US imaging findings type IIGBP
Chi-squared	16.620^a	24.557^b
df	12	8
Asymp. Sig.	0.164	0.002

^a 0 cells (0.0%) have expected frequencies less than 5. The minimum expected cell frequency is 9.9
^b 0 cells (0.0%) have expected frequencies less than 5. The minimum expected cell frequency is 8.8