Table 6 Performance of different groups in terms of PPVs to GTC classification.

From: Using artificial intelligence system for assisting the classification of breast ultrasound glandular tissue components in dense breast tissue

Group	PPV	Pairing difference	t	p	PPV	Pairing difference	t	p	PPV	Pairing difference	t	p	PPV	Pairing difference	t	p	PPV	Pairing difference	t	p
Group	PPV	Pairing difference	t	p	P1	Pairing difference	t	p	P2	Pairing difference	t	p	P3	Pairing difference	t	p	P4	Pairing difference	t	p
A + B	0.5137	0.122	14.299	0.001**	0.277	0.154	7.510	0.001**	0.550	0.178	15.037	0.001**	0.685	0.027	4.752	0.001**	0.469	0.109	8.857	0.001**
A + B + AI	0.6354	0.122	14.299	0.001**	0.431	0.154	7.510	0.001**	0.728	0.178	15.037	0.001**	0.712	0.027	4.752	0.001**	0.578	0.109	8.857	0.001**
A	0.5666	0.094	8.430	0.001**	0.371	0.120	3.526	0.001**	0.651	0.134	8.983	0.001**	0.708	− 0.027	3.358	0.010*	0.442	0.150	7.501	0.001**
A + AI	0.6609	0.094	8.430	0.001**	0.491	0.120	3.526	0.001**	0.791	0.134	8.983	0.001**	0.681	− 0.027	3.358	0.010*	0.592	0.150	7.501	0.001**
Reader 1	0.5832	0.086	4.659	0.001**	0.283	0.236	5.693	0.001**	0.839	− 0.00**	1.000	0.319	0.667	− 0.022	1.745	0.083	0.365	0.224	5.536	0.001**
Reader 1 + AI	0.6692	0.086	4.659	0.001**	0.519	0.236	5.693	0.001**	0.833	− 0.00**	1.000	0.319	0.644	− 0.022	1.745	0.083	0.589	0.224	5.536	0.001**
Reader 2	0.5641	0.092	4.539	0.001**	0.396	0.019	1.421	0.158	0.684	0.190	6.363	0.001**	0.763	− 0.074	3.274	0.010*	0.318	0.187	4.936	0.001**
Reader 2 + AI	0.6558	0.092	4.539	0.001**	0.415	0.019	1.421	0.158	0.874	0.190	6.363	0.001**	0.689	− 0.074	3.274	0.010*	0.505	0.187	4.936	0.001**
Reader 3	0.5526	0.105	5.408	0.001**	0.434	0.104	3.487	0.001**	0.448	0.218	6.953	0.001**	0.711	0.015	1.420	0.158	0.645	0.037*	2.029	0.045*
Reader 3 + AI	0.6577	0.105	5.408	0.001**	0.538	0.104	3.487	0.001**	0.667	0.218	6.953	0.001**	0.730	0.015	1.420	0.158	0.682	0.037*	2.029	0.045*
p		0.135				0.001**				0.001**				0.001**				0.001**
B	0.461	0.149	11.651	0.001**	0.198	0.198	8.853	0.001**	0.443	0.222	12.201	0.001**	0.662	0.081	5.985	0.001**	0.495	0.069	4.852	0.001**
B + AI	0.61	0.149	11.651	0.001**	0.396	0.198	8.853	0.001**	0.665	0.222	12.201	0.001**	0.743	0.081	5.985	0.001**	0.564	0.069	4.852	0.001**
Reader 4	0.545	0.126	5.285	0.001**	0.198	0.151	4.320	0.001**	0.529	0.161	5.760	0.001**	0.785	0.007	1.000	0.319	0.477	0.122	3.829	0.001**
Reader 4 + AI	0.671	0.126	5.285	0.001**	0.349	0.151	4.320	0.001**	0.690	0.161	5.760	0.001**	0.793	0.007	1.000	0.319	0.598	0.122	3.829	0.001**
Reader 5	0.516	0.111	5.694	0.001**	0.245	0.274	6.289	0.001**	0.563	0.149	5.513	0.001**	0.719	0.111	4.093	0.001**	0.561	0.037	2.029	0.045*
Reader 5 + AI	0.627	0.111	5.694	0.001**	0.519	0.274	6.289	0.001**	0.713	0.149	5.513	0.001**	0.830	0.111	4.093	0.001**	0.598	0.037	2.029	0.045*
Reader 6	0.321	0.210	9.259	0.001**	0.151	0.170	4.634	0.001**	0.236	0.356	9.786	0.001**	0.496	0.126	4.394	0.001**	0.411	0.122	3.829	0.001**
Reader 6 + AI	0.532	0.210	9.259	0.001**	0.321	0.170	4.634	0.001**	0.592	0.356	9.786	0.001**	0.622	0.126	4.394	0.001**	0.533	0.122	3.829	0.001**
p		0.001**				0.001**				0.001**				0.001**				0.001**

*p < 0.05, **p < 0.01.

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Table 6 Performance of different groups in terms of PPVs to GTC classification.

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