Table 4.

Comparison of the preliminary diagnosis before and after USG and definitive diagnosis of patients included in the study.

	Preliminary diagnosis before USG		Preliminary diagnosis after USG		p value
	N	%	N	%
Consistent with definitive diagnosis	109	60,6	153	85	<0.001
Inconsistent with definitive diagnosis	71	39,4	27	15
Total	180	180	180	100
Measure of agreement Kappa	Kappa index = 0.564 Moderate agreement		Kappa index = 0.820 Almost perfect agreement