Table 2.

Patient information providing experimental data.

Characteristics		Total Training Set	Test Set	Characteristics
Age	<15	48(23.5%)	38(23.2%)	10(25%)
	15–25	131(64.2%)	107(65.2%)	24(60%)
	>25	25(12.3%)	19(11.6%)	6(15.0%)
Sex	Female	92 (45.1%)	69 (42.1%)	23 (57.5%)
	Male	112 (54.9%)	95 (57.9%)	17 (42.5%)
Marital status	Married	32 (15.7%)	19 (11.6%)	13 (32.5%)
	Unmarried	172 (84.3%)	145 (88.4%)	27 (67.5%)
SES	Low SES	78 (38.2%)	66 (40.2%)	12 (30.0%)
	High SES	126 (61.8%)	98 (59.8%)	28 (70.0%)
Surgery	Yes	181 (88.8%)	146 (89.0%)	35 (87.5%)
	No	23 (11.2%)	18 (11.0%)	5 (12.5%)
Grade	Low grade	41 (20.1%)	15 (9.1%)	26 (65%)
	High grade	163 (79.9%)	149 (90.9%)	14 (35%)
Location	Axial	29 (14.2%)	21 (12.8%)	8 (20%)
	Extremity	138 (67.7%)	109 (66.5%)	29 (72.5%)
	Other	37 (18.1%)	34 (20.7%)	3 (7.5%)