Table 1.

Clinicopathological characteristics of children with OS.

	ALL N = 86	Dead N = 24	Alive N = 62	p
Age	10.7 (2.93)	9.58 (3.59)	11.1 (2.55)	0.068
Sex				0.831
Male	54 (62.8%)	16 (66.7%)	38 (61.3%)
Female	32 (37.2%)	8 (33.3%)	24 (38.7%)
Region				1.000
Urban	44 (51.2%)	12 (50.0%)	32 (51.6%)
Rural	42 (48.8%)	12 (50.0%)	30 (48.4%)
Medical.insurance				0.392
No	42 (48.8%)	14 (58.3%)	28 (45.2%)
Yes	44 (51.2%)	10 (41.7%)	34 (54.8%)
Primary.site				0.179
Limb	80 (93.0%)	24 (100%)	56 (90.3%)
Axial	6 (6.98%)	0 (0.00%)	6 (9.68%)
lateral				0.057
Left	46 (53.5%)	10 (41.7%)	36 (58.1%)
Right	34 (39.5%)	14 (58.3%)	20 (32.3%)
Not pairs	6 (6.98%)	0 (0.00%)	6 (9.68%)
Stage				<0.001
I	28 (32.6%)	2 (8.33%)	26 (41.9%)
II	24 (27.9%)	2 (8.33%)	22 (35.5%)
III	21 (24.4%)	9 (37.5%)	12 (19.4%)
IV	13 (15.1%)	11 (45.8%)	2 (3.23%)
Surgery				0.310
Limb salvage	82 (95.3%)	22 (91.7%)	60 (96.8%)
Amputation	4 (4.65%)	2 (8.33%)	2 (3.23%)
Chemotherapy				0.496
No	12 (14.0%)	2 (8.33%)	10 (16.1%)
Yes	74 (86.0%)	22 (91.7%)	52 (83.9%)
Radiotherapy				0.573
No	82 (95.3%)	24 (100%)	58 (93.5%)
Yes	4 (4.65%)	0 (0.00%)	4 (6.45%)
Size	71.0 (37.4)	89.9 (28.6)	63.7 (38.0)	0.001
PLR	128 (73.6)	166 (86.8)	113 (62.6)	0.011
NLR	1.61 (0.72)	1.90 (0.73)	1.49 (0.69)	0.021
SII	677 (464)	913 (462)	586 (436)	0.005
Platelet	407 (157)	474 (146)	381 (154)	0.013
Neutrophile	5.14 (1.48)	5.66 (1.24)	4.94 (1.53)	0.026
Lymphocyte	3.56 (1.17)	3.35 (1.43)	3.65 (1.06)	0.367
Metastasis				1.000
No	78 (90.7%)	22 (91.7%)	56 (90.3%)
Yes	8 (9.30%)	2 (8.33%)	6 (9.68%)
Survival. months	33.6 (23.4)	21.2 (21.9)	38.4 (22.3)	0.002