Rethinking U-Net from an Attention Perspective with Transformers for Osteosarcoma MRI Image Segmentation

Table 1

The baseline of patient characteristics.

Characteristics		Total N = 286	Training set; N = 216 (75.52%)	Testing set; N = 70 (24.48%)
Age	<15; 15–25; >25	71; 186; 29	66; 129; 21	5; 57; 8
		2.5 : 6.5 : 1	3.1 : 6:0.9	0.7 : 8.1 : 1.2
Sex	Female; Male	134; 152	90; 126	44; 26
		4.7 : 5.3	2.1 : 2.9	6.3 : 3.7
SES	Low SES; High SES	117; 169	99; 117	18; 52
		4.1 : 5.9	2.3 : 2.7	1.3 : 3.7