Validation of scoring systems for the prediction of complicated appendicitis in adults using clinical and computed tomographic findings

Kaewlai, Rathachai; Tongsai, Sasima; Teerasamit, Wanwarang; Wongsaengchan, Dhanawin; Noppakunsomboon, Napakadol; Khamman, Pramuk; Chatkaewpaisal, Anchisa; Apisarnthanarak, Piyaporn

doi:10.1186/s13244-023-01540-4

Insights into Imaging

Table 5 Pairwise comparison of area under the ROC curves of 10 scores

From: Validation of scoring systems for the prediction of complicated appendicitis in adults using clinical and computed tomographic findings

	Modified Atema score ≥ 5	Modified Kim score ≥ 1	Modified Imaoka score ≥ 1	Avanesov score ≥ 2	Khan score ≥ 2	Modified Lin Model 1 score ≥ 4	Modified Lin Model 2 score ≥ 4	KimHY score ≥ 3	Current score^a ≥ 2	Current score^b ≥ 2
Modified Atema score ≥ 5	1	0.096 (0.043 to 0.149)	0.140 (0.096 to 0.184)	0.047 (0.012 to 0.082)	0.132 (0.081 to 0.183)	0.057 (0.011 to 0.102)	0.087 (0.035 to 0.138)	0.038 (− 0.009 to 0.085)	0.007 (− 0.030 to 0.043)	0.002 (− 0.033 to 0.037)
Modified Kim score ≥ 1	< 0.001	1	0.043 (− 0.013 to 0.099)	− 0.049 (− 0.104 to 0.005)	0.035 (− 0.035 to 0.106)	− 0.040 (− 0.076 to − 0.033)	− 0.010 (− 0.047 to 0.027)	− 0.058 (− 0.101 to − 0.015)	− 0.090 (− 0.135 to − 0.044)	− 0.094 (− 0.139 to − 0.050)
Modified Imaoka score ≥ 1	< 0.001	0.130	1	− 0.093 (− 0.136 to − 0.049)	− 0.008 (− 0.081 to 0.065)	− 0.083 (− 0.139 to − 0.027)	− 0.053 (− 0.111 to 0.005)	− 0.101 (− 0.159 to − 0.043)	− 0.133 (− 0.183 to − 0.082)	− 0.137 (− 0.183 to − 0.092)
Avanesov score ≥ 2	0.008	0.077	< 0.001	1	0.085 (0.027 to 0.142)	0.010 (− 0.043 to 0.063)	0.040 (− 0.017 to 0.096)	− 0.009 (− 0.056 to 0.039)	− 0.040 (− 0.084 to 0.004)	− 0.045 (− 0.084 to − 0.005)
Khan score ≥ 2	< 0.001	0.327	0.834	0.004	1	− 0.075 (− 0.139 to − 0.012)	− 0.045 (− 0.116 to 0.025)	− 0.093 (− 0.160 to − 0.027)	− 0.125 (− 0.186 to − 0.065)	− 0.130 (− 0.191 to − 0.068)
Modified Lin Model 1 score ≥ 4	0.015	0.033	0.004	0.723	0.021	1	0.030 (0.005 to 0.054)	− 0.018 (− 0.063 to 0.027)	− 0.050 (− 0.078 to − 0.022)	− 0.054 (− 0.085 to − 0.024)
Modified Lin Model 2 score ≥ 4	0.001	0.602	0.071	0.170	0.209	0.017	1	− 0.048 (− 0.095 to − 0.001)	− 0.080 (− 0.118 to − 0.041)	− 0.084 (− 0.124 to − 0.045)
KimHY score ≥ 3	0.110	0.009	0.001	0.723	0.006	0.425	0.044	1	− 0.032 (− 0.075 to 0.011)	− 0.036 (− 0.080 to 0.007;)
Current score¹ ≥ 2	0.714	< 0.001	< 0.001	0.073	< 0.001	< 0.001	< 0.001	0.150	1	− 0.005 (− 0.015 to 0.006)
Current score² ≥ 2	0.901	< 0.001	< 0.001	0.026	< 0.001	< 0.001	< 0.001	0.103	0.375	1

Paired-sample area differences under the ROC curves with corresponding 95% confidence intervals were presented in the upper diagonal, and the p values between the pairs were presented in the lower diagonal. Values in italics indicate statistical significance
^aUsing odds ratio
^bUsing coefficient

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