Table 1.

Comparison of patient baseline data between training and validation sets.

Indicators		Training set (n = 132)	Validation set (n = 57)	statistical values	P value
Age (years)		68.82 ± 6.98	69.12 ± 7.88	0.608	0.544
Gender	Male	72(54.55)	37(65.91)	1.753	0.186
	Female	60(45.45)	20(35.09)
BMI(kg/m²)		22.32 ± 2.96	22.55 ± 3.05	0.456	0.627
ASIA rating	Severe Injury Group (Grade A and B)	28(21.21)	17(29.82)	1.628	0.202
	Incomplete injury group (CDE grade)	104(78.79)	40(70.18)
Fracture segment	T12	86(65.15)	40(70.18)	0.452	0.501
	L1	46(34.85)	17(29.82)
Combined diabetes	Yes	24(18.18)	10(17.54)	0.011	0.917
	No	108(81.82)	47(82.46)
Hypertension	Yes	56(42.42)	20(35.09)	0.891	0.345
	No	76(57.58)	37(64.91)
Drinking history	Yes	28(21.21)	18(31.58)	2.323	0.127
	No	104(78.79)	39(68.42)
Postoperative complications	Yes	20(15.15)	7(12.28)	0.268	0.605
	No	112(84.85)	50(87.72)
Serum neuroitin (ng/ml)		26.86 ± 6.29	26.88 ± 5.88	0.021	0.984
Serum TGF-β1(ng/mL)		202.22 ± 38.42	205.78 ± 43.56	0.561	0.575
Degree of vertebral compression (%)		43.52 ± 10.83	44.82 ± 12.22	0.728	0.467
Occupancy rate of spinal canal (%)		36.28 ± 8.98	38.55 ± 10.01	1.54	0.125
Prealbumin (mg/dL)		17.58 ± 4.21	16.52 ± 3.98	1.615	0.108
Osteocalcin (ng/mL)		20.87 ± 4.86	22.22 ± 5.66	0.432	0.666
25-hydroxyvitamin D(ng/mL)		16.52 ± 6.01	15.44 ± 5.88	1.141	0.255
Alkaline phosphatase (U/L)		89.36 ± 22.32	92.44 ± 23.34	0.859	0.392